MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'Clinical Oral Investigations' source. Wed, 08 Feb 2012 12:06:14 +0100 http://www.medworm.com/index.php?rid=5667223&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fr7198m7553362375%2F Conclusions  Comprehensive periodontal treatment and strict plaque control significantly improved periodontal health; however, no reduction of PTLBW rates was observed. Thus, remaining periodontal inflammation posttreatment cannot explain the lack of effect of periodontal treatment on PTLBW. Clinical relevance  This study demonstrated that periodontal diseases may be successfully treated during pregnancy. Our results do not support a potential beneficial effect of periodontal treatment on PTLBW. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-012-0679-3Authors Patricia Weidlich, Section of Periodontology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, Bra... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5667223 Thu, 02 Feb 2012 18:12:31 +0100 5667223 http://www.medworm.com/index.php?rid=5667222&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F2080017q3vvxwk2n%2F Conclusions  The findings revealed that three-dimensional jaw-relation recording may be reproduced in a simulated prosthetic reconstruction within the accuracy reported for replicate intraoral bite recordings. Clinical relevance  Centric relation recordings may be reproduced in a prosthetic reconstruction with the spatial accuracy of 0.3 mm. Content Type Journal ArticleCategory Original ArticlePages 1-9DOI 10.1007/s00784-012-0682-8Authors D. Hellmann, Department of Prosthodontics, Dental School, University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, GermanyE. Etz, Department of Prosthodontics, Dental School, University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, GermanyN. N. Giannakopoulos, Department of Prosthodontics... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5667222 Thu, 02 Feb 2012 18:12:31 +0100 5667222 http://www.medworm.com/index.php?rid=5667224&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fa2t14347w2347p8j%2F Conclusion  The microduplication identified in this family represents the most likely cause of the odontoma–dysphagia syndrome and implies that the syndrome is caused by a gain of function of the FGF3 and FGF4 genes. Clinical relevance  Mutations of FGF receptor genes can cause craniofacial syndromes such as odontoma–dysphagia syndrome. Following this train of thought, an evaluation of FGF gene family in sporadic odontoma could be worthwhile. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-012-0676-6Authors Thomas Ziebart, Department of Oral and Maxillofacial Surgery, University Medical Center of the Johannes Gutenberg-University of Mainz, Augustusplatz 2, 55131 Mainz, GermanyFlorian G. Draenert, Department of O... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5667224 Thu, 02 Feb 2012 06:56:37 +0100 5667224 http://www.medworm.com/index.php?rid=5659754&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fl0n83k0tq482n482%2F Conclusions  tHPDC reacted less sensitive than tBPDC in the cytotoxicity test but with the same rank order of materials. In contrast, the cellular oxidative stress reaction was more pronounced in tHPDC than in tBPDC. Clinical relevance  Depending on the residual dentine layer in deep cavities, biologically active resin monomers or additives released from resin cements may influence the dentine–pulp complex, for instance, its regenerative and reparative capacities. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0657-1Authors Hayriye Esra Ülker, Konya Oral Health Hospital, Konya Agiz Dis Sagligi Merkezi, 42070 Selcuklu, Konya, TurkeyKarl Anton Hiller, Department of Operative Dentistry and Periodontology, Unive... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5659754 Tue, 31 Jan 2012 07:07:14 +0100 5659754 http://www.medworm.com/index.php?rid=5647870&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F6583460q05117326%2F Conclusions  Restorative treatment with extensive one-piece FDPs resulted in long-term stability of the periodontal outcomes. Gingival conditions were shown to deteriorate mildly despite periodic recalls for SPT. An association between deterioration and compliance was observed, suggesting that periodic examinations are essential for maintaining oral hygiene and hence to the success of treatment. Clinical relevance  Given a favorable distribution of potential abutment teeth, treatment with tooth-supported extensive FDPs is desirable even in patients with a history of periodontitis. Removable dentures would involve a number of shortcomings, including functional problems and severe degradation of oral ecology. Tooth-supported FDPs are capable of restoring fun... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5647870 Mon, 30 Jan 2012 16:05:27 +0100 5647870 http://www.medworm.com/index.php?rid=5647871&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fjt41mu3q0546ug55%2F Conclusions  The Spanish version of the “Questionnaire on the treatment of approximal and occlusal caries” is a valid and reliable instrument for collecting information regarding treatment decisions in cariology. Clinical relevance  The clinical relevance of this study is to acquire a reliable instrument that allows for the determination of treatment decisions in Spanish-speaking dentists. Content Type Journal ArticleCategory Original ArticlePages 1-7DOI 10.1007/s00784-012-0678-4Authors Begoña Ruiz, Department of Restorative Dentistry, Cariology Area, Faculty of Dentistry, University of Chile, Sergio Livingstone Pohlhammer 943, Independencia, Santiago, ChileIván Urzúa, Department of Restorative Dentistry, Cariology Area, Faculty of Dentistry... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5647871 Mon, 30 Jan 2012 06:32:10 +0100 5647871 http://www.medworm.com/index.php?rid=5647872&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fu761686n15x4t163%2F Conclusions  The initially white appearance of enamel caries was a result of changes of L* and b*. F treatment partially restored the color of white spot lesions. Clinical relevance  F-driven remineralization induced both mineral gains and esthetic enhancement of artificially produced enamel white spot lesions. The increase of L* and the decrease of b* contributed to the color changes. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-012-0680-xAuthors Younju Kim, Department of Conservative Dentistry and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South KoreaHo-Hyun Son, Department of Conservative Dentistry and Dental Research Institute, School of Dentistry, Seoul National Universi... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5647872 Thu, 26 Jan 2012 06:55:47 +0100 5647872 http://www.medworm.com/index.php?rid=5620112&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fn232834556nu63g8%2F Conclusions  Tagger’s hybrid technique provided better homogeneity of the obturation radiopacity and better apical sealing compared with lateral condensation technique. Clinical relevance  The results suggest that Tagger’s hybrid technique provided the best compaction of the root canal filling material, an important factor for the sealing of obturations and, consequently, for the effectiveness of treatment. Content Type Journal ArticleCategory Original ArticlePages 1-7DOI 10.1007/s00784-012-0675-7Authors Larissa Dantas Fracassi, School of Dentistry, Federal University of Bahia, Brazil, Av. Araujo Pinho n. 62, Canela, Salvador, BA CEP 40110-150, BrazilEduardo Gomes Ferraz, School of Dentistry, Federal University of Bahia, Brazil, Av. Araujo Pinh... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5620112 Thu, 19 Jan 2012 06:59:16 +0100 5620112 http://www.medworm.com/index.php?rid=5620113&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ft13ph21024l4073r%2F Conclusions  BOP decreased after pregnancy without any active periodontal therapy. Associations between bacterial counts and cytokine levels varied greatly in pregnant women with gingivitis and a normal pregnancy outcome. Postpartum associations between GCF cytokines and bacterial counts were more consistent. Clinical relevance  Combined assessments of gingival fluid cytokines and subgingival bacteria may provide important information on host response. Content Type Journal ArticleCategory Original ArticlePages 1-10DOI 10.1007/s00784-012-0674-8Authors Regina Alessandri Bieri, Department of Periodontology, University of Bern, Freiburgstrasse 7, CH-3010 Bern, SwitzerlandLaurence Adriaens, Department of Periodontology, University of Bern, Freiburgstrasse... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5620113 Tue, 17 Jan 2012 07:05:34 +0100 5620113 http://www.medworm.com/index.php?rid=5620114&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fj1g3222276w03785%2F Conclusions  Antioxidant response to oxidative changes (TAC and TOS) in SF decreased as the stage of dysfunction increased. Clinical relevance  Local administration of antioxidant agents might be considered in management of TMJ pain and dysfunction to prevent possible increased oxidative stress. Content Type Journal ArticleCategory Original ArticlePages 1-5DOI 10.1007/s00784-011-0666-0Authors Osman A. Etöz, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Erciyes University, 38039 Kayseri, TurkeyHüseyin Akçay, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Erciyes University, 38039 Kayseri, TurkeySalim Neşelioğlu, Department of Biochemistry, Atatürk Research and Training Hospital, Ankara, TurkeyÖzcan Erel... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5620114 Tue, 17 Jan 2012 07:05:33 +0100 5620114 http://www.medworm.com/index.php?rid=5597547&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fe7mv0711h264k763%2F Conclusions  The JP2 clone is not spread within the Caucasian inhabitants in German cities. The serotypes distribution seems to be influenced by the numbers of immigrants in the cities. Clinical Relevance  Patients originated from North Africa should be especially screened for the presence of the deletion in the ltx promoter region. Content Type Journal ArticleCategory Original ArticlePages 1-9DOI 10.1007/s00784-012-0672-xAuthors Holger Jentsch, Department of Conservative Dentistry and Periodontology, Medical Faculty, University of Leipzig, Nürnberger Str. 57, 04103 Leipzig, GermanyGeorg Cachovan, Department of Restorative and Preventive Dentistry, University Medical Center Hamburg-Eppendorf, Hamburg, GermanyArndt Guentsch, Department of Conservative... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5597547 Fri, 13 Jan 2012 16:58:20 +0100 5597547 http://www.medworm.com/index.php?rid=5597548&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fm41612g511301003%2F Conclusion  Glass fiber posts efficiently increase the fracture resistance of an endodontically treated tooth but the determination of optimal post length is also essential. Clinical relevance  The present investigation highlights the significance of using glass fiber posts in the restoration of endodontically treated teeth. Endodontically treated teeth restored with glass fiber posts showed increased fracture strength and favorable mode of fracture, and are therefore highly recommended to achieve better clinical outcomes. Content Type Journal ArticleCategory Original ArticlePages 1-7DOI 10.1007/s00784-012-0673-9Authors Sahil Jindal, Department of Pedodontics and Preventive Dentistry, Surendera dental college and hospital, Sri Ganganagar, 335001 R... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5597548 Fri, 13 Jan 2012 16:58:19 +0100 5597548 http://www.medworm.com/index.php?rid=5597549&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F8317055322864412%2F Conclusions  Excessive seating forces during cementation seem not to affect the μTBS results. Clinical relevance  Excessive forces during the seating of single all-ceramic restorations cementation seem to display the same tensile bond strength to the resin cement. Content Type Journal ArticleCategory Short CommunicationPages 1-7DOI 10.1007/s00784-011-0668-yAuthors Susana María Salazar Marocho, Department of Dental Materials and Prosthodontics, São Paulo State University—UNESP, São Paulo, BrazilMutlu Özcan, Dental Materials Unit, Center for Dental and Oral Medicine, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, University of Zürich, Zürich, SwitzerlandRegina Amaral, Department of Dental Materials and Prosthodontic... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5597549 Thu, 12 Jan 2012 06:41:07 +0100 5597549 http://www.medworm.com/index.php?rid=5581762&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fgg079456p0u32698%2F Conclusion  The initial implant stability, quantified as the ITV, was strongly positively correlated with the 3D BIC% obtained from micro-CT images. Clinical relevance  The ITV of a dental implant can be used to predict the initial BIC%; this information may provide the clinician with important information on the optimal loading time. Content Type Journal ArticleCategory Original ArticlePages 1-6DOI 10.1007/s00784-011-0658-0Authors Cheng Liu, Institute of Biomedical Engineering, National Cheng Kung University, Tainan, 701 TaiwanMing-Tzu Tsai, Department of Biomedical Engineering, HungKuang University, Shalu, 433 TaiwanHeng-Li Huang, School of Dentistry, College of Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung, 404 TaiwanMichael Y... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5581762 Mon, 09 Jan 2012 06:32:51 +0100 5581762 http://www.medworm.com/index.php?rid=5581761&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fqxv0437815185505%2F Conclusion  Satisfactory root fillings were associated with a favorable outcome, confirmed by both PA and CBCT. Clinical relevance  The outcome of root canal treatment is improved once the filling is 0–2 mm from the apex, and no voids could be detected. Technical skills and performance of root canal filling procedures should be emphasized, and suitable methods should be developed in order to achieve more compacted filling materials without voids and at the correct length. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0671-3Authors Yu-Hong Liang, Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, ChinaGang Li, Department of Oral Radiology, Peking Unive... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5581761 Mon, 09 Jan 2012 06:32:51 +0100 5581761 http://www.medworm.com/index.php?rid=5581763&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fq481v73645823w57%2F Conclusion  Unpolymerized primers of dentin adhesives were more cytotoxic than polymerized bonding counterparts. Moreover, total etch dentin adhesives were more cytotoxic than self-etch adhesives. Clinical relevance  When dentin adhesives are used in deep cavities without a protective dentin barrier the leachable hydrophobic and hydrophilic component of dentin adhesive systems can penetrate to the pulp and may induce cytotoxic responses in pulp tissues. Content Type Journal ArticleCategory Original ArticlePages 1-12DOI 10.1007/s00784-011-0669-xAuthors Safa Tuncer, Department of Conservative Dentistry, Faculty of Dentistry, Istanbul University, 34093 Çapa Istanbul, TurkeyMustafa Demirci, Department of Conservative Dentistry, Faculty of Dentistry, I... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5581763 Thu, 05 Jan 2012 17:04:15 +0100 5581763 http://www.medworm.com/index.php?rid=5581765&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F3qp1411440107843%2F Conclusions  This study found that in zones with higher radiation dose, inflammation of the jawbone due to bacterial infection of the root canal is more likely to develop. This is probably due to bone changes post radiotherapy. Clinical relevance  An increase of this prevalance of apical periodontitis in irradiated bone found in this study needs to be taken into account in the dental evaluation before the start of radiotherapy. Content Type Journal ArticleCategory Original ArticlePages 1-5DOI 10.1007/s00784-011-0665-1Authors Geert M. G. Hommez, Department of Operative Dentistry and Endodontology, Ghent University, Ghent University Hospital, Dental School, De Pintelaan 185, 9000 Ghent, BelgiumGert O. De Meerleer, Department of Radiotherapy, Ghent Un... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5581765 Thu, 05 Jan 2012 06:53:06 +0100 5581765 http://www.medworm.com/index.php?rid=5581764&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fu708v82w86185441%2F Conclusion  Auricular acupuncture, a minimally invasive method, effectively reduces state anxiety before dental treatment. Clinical relevance  Auricular acupuncture could be an option for patients scheduled for dental treatment, who experience an uncomfortable degree of anxiety and request an acute intervention for their anxiety. Content Type Journal ArticleCategory Original ArticlePages 1-6DOI 10.1007/s00784-011-0662-4Authors Andrea Michalek-Sauberer, Department of Special Anaesthesia and Pain Therapy, Medical University of Vienna, Austria, Waehringer Guertel 18-20, 1090 Vienna, AustriaErich Gusenleitner, Bernhard Gottlieb Department of Oral Surgery, Medical University of Vienna, Austria, Waehringer Straße 25 a, 1090 Vienna, AustriaAndreas Gleiss, C... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5581764 Thu, 05 Jan 2012 06:53:06 +0100 5581764 http://www.medworm.com/index.php?rid=5560216&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fl460n23106k11286%2F Conclusions  Aging did not influence the fracture load of FDPs made of CAD/CAM resins. FDPs made of glass–ceramic showed significantly lower fracture load than those of all resin FDPs. Clinical relevance: Considering fracture load measurements, CAD/CAM resins tested could be alternative materials to glass–ceramic for FDP construction. Content Type Journal ArticleCategory Original ArticlePages 1-9DOI 10.1007/s00784-011-0670-4Authors Bogna Stawarczyk, Clinic of Fixed and Removal Prosthodontics and Dental Material Science, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, Zurich, 8032 SwitzerlandAndreas Ender, Clinic of Preventive Dentistry, Periodontology and Cariology, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, Zurich, 803... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5560216 Mon, 02 Jan 2012 06:58:24 +0100 5560216 http://www.medworm.com/index.php?rid=5560217&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fe30411558n026001%2F Conclusions  The present study extends previous observations, demonstrating the reduction of TFF2 and TFF3 expression in oral mucosal tissues of OSCC patients. Clinical relevance  These findings suggest the clinical significance of TFF2 and TFF3 molecules as negative markers of tumor progression in OSCC. Quantification of TFF levels in saliva may not be optimal in terms of diagnostic or predictive value for OSCC derived from oral mucosa. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0667-zAuthors Ponlatham Chaiyarit, Department of Oral Diagnosis, Faculty of Dentistry, Khon Kaen University, Khon Kaen, 40002 ThailandAkasith Utrawichian, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Khon Ka... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5560217 Thu, 29 Dec 2011 06:42:42 +0100 5560217 http://www.medworm.com/index.php?rid=5560218&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fm28648304718p447%2F Conclusion  The longevity of treated teeth based on tooth survival was considerably greater than that of periapical healing. Both outcome measures were affected by a number of socio-demographic, pre-, intra-, and post-operative factors. Clinical relevance  Root canal-treated teeth may continue to function for a considerable period of time even though there may be radiographic periapical lesion present. Decision for extraction may be due to reasons other than a failure of the periapical tissues to heal. Content Type Journal ArticleCategory Original ArticlePages 1-11DOI 10.1007/s00784-011-0664-2Authors A. H. C. Lee, Faculty of Dentistry, The University of Hong Kong, 3/F, Prince Philip Dental Hospital, 34 Hospital Road, Sai Ying Pun, Hong Kong, HKSAR... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5560218 Thu, 29 Dec 2011 06:42:41 +0100 5560218 http://www.medworm.com/index.php?rid=5552312&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ff6148431v6073511%2F Content Type Journal ArticleCategory Letter to the EditorPages 1-1DOI 10.1007/s00784-011-0660-6Authors Alireza Akbarzadeh Baghban, Department of Biostatistics, Iranian Center for Endodontic Research, Shahid Beheshti University of Medical Sciences, Tehran, IranLeili Mehrdad, Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran Journal Clinical Oral InvestigationsOnline ISSN 1436-3771Print ISSN 1432-6981 (Source: Clinical Oral Investigations) Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5552312 Wed, 28 Dec 2011 16:53:17 +0100 5552312 http://www.medworm.com/index.php?rid=5552313&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F77711583mn7l3654%2F Conclusions  Technical complications occurred more frequently in the CR-RDP group. Taking the higher observation time in the AR-RDP group into account, CR-RDPs are more prone to repairs, especially to those with technical background (e.g., fracture of the metal framework). Clinical relevance  The use of crowns with rod attachments on tilted teeth seems to be an appropriate treatment approach in order to simplify removable dental prosthesis design. Content Type Journal ArticleCategory Original ArticlePages 1-7DOI 10.1007/s00784-011-0661-5Authors K. Stegelmann, Center of Dentistry, Department of Prosthetic Dentistry, Ulm University Hospital, Albert-Einstein-Allee 11, 89081 Ulm, GermanyM. Dirheimer, Private Dental Office: Zahnärztliche Gemeinschafts... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5552313 Tue, 27 Dec 2011 06:34:25 +0100 5552313 http://www.medworm.com/index.php?rid=5544595&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fbmj6383t8u5xg583%2F We examined associations between baseline characteristics and (1) the presence of any root caries using Mantel–Haenszel hypothesis tests and odds ratio (OR) estimators and (2) the number of root surfaces with caries among study participants with exposed root surfaces (n = 349) using Mantel–Haenszel mean score tests and Mann–Whitney estimators. Results/conclusions  Adjusting for study site and age, male gender [OR, 1.72; 95% confidence interval (CI), 1.08, 2.78], white race (OR, 2.39; 95% CI, 1.43, 3.98), recent dental visit (OR, 1.98; 95% CI, 1.07, 3.66), poor self-described oral health (OR, 2.65; 95% CI, 1.10, 6.39), and recent professional fluoride treatment (OR, 1.85; 95% CI, 1.06, 3.25) were significantly associated with increased odds to have any root... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5544595 Fri, 23 Dec 2011 16:52:44 +0100 5544595 http://www.medworm.com/index.php?rid=5544597&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fw0223317057r5144%2F Conclusion  From a technical point of view, compromises made for the endodontic treatment of permanent teeth under GA are acceptable. Further studies should be conducted to evaluate the long-term success of endodontic treatment performed under GA. Clinical relevance  This study supports the feasibility of endodontic treatment for patients treated under GA. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0663-3Authors Iyad Alsaleh, Clermont Université, Université d’Auvergne, Faculté de Chirurgie Dentaire, EA 3847, 11, Bd Charles de Gaulle, 63000 Clermont-Ferrand, FrancePierre-Yves Cousson, Clermont Université, Université d’Auvergne, Faculté de Chirurgie Dentaire, EA 3847, 11, Bd Charles de Gaulle, 63000 Cl... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5544597 Fri, 23 Dec 2011 06:50:03 +0100 5544597 http://www.medworm.com/index.php?rid=5544596&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F6370kk071nr6v824%2F Conclusions  The test bench in combination with the new optical device PONTOS® can test the primary stability of osteosynthesis. We offer a solution to the problem of rate of twist of the mandible as well as typical rotational problem in recent measurements. Further, the method can be used for development of new osteosynthesis products. Clinical relevance  Pseudoarthrosis formation is a common problem based on unsatisfying fixation of the fracture gap. The here presented combination of mechanical tests and numerical simulations can provide support for an improved treatment of fractured mandibles. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0659-zAuthors T. Steiner, Department of Oral and Maxillofacial Surg... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5544596 Fri, 23 Dec 2011 06:50:03 +0100 5544596 http://www.medworm.com/index.php?rid=5515360&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F916345213065rxq6%2F Conclusions  In terms of the investigated aspects of mechanical performance, the tested composites seemed to be inferior to amalgam. Further clinical studies are needed to evaluate the ability of composite restorations to provide support for RDP clasps. Clinical relevance  The use of composites as direct restoration materials should be avoided in teeth, which serve as abutments for clasp-retained RDPs. Content Type Journal ArticleCategory Original ArticlePages 1-9DOI 10.1007/s00784-011-0653-5Authors Peter Pospiech, Department of Prosthetic Dentistry, Danube Private University, Dr.-Karl-Dorrek-Str. 23, Campus West, 3500 Krems, AustriaFlorian Nagel, Private practice, Ottobeuren, GermanyFlorian Gebhart, Private practice, Munich, GermanyFrank P. Nothdu... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5515360 Fri, 16 Dec 2011 06:54:25 +0100 5515360 http://www.medworm.com/index.php?rid=5515361&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fw728556028322840%2F Conclusion  The presence and bacteria loads of these four bacteria in this Chinese population are similar to those from other populations. Clinical relevance  Examination of bacterial detection frequency and loads in Chinese adults may assist microbial studies of periodontal disease and will shed light on periodontal disease diagnosis and treatment using antibiotics in the Chinese population. Content Type Journal ArticleCategory Original ArticlePages 1-10DOI 10.1007/s00784-011-0654-4Authors Jiayan He, Institute of Biotechnology, Zhejiang University, Hangzhou, ChinaWujing Huang, Department of Conservative Dentistry and Periodontics, Affiliated Hospital of Stomatology, School of Medicine, Zhejiang University, 395 Yan An Road, Hangzhou, Zhejiang 310006, ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5515361 Thu, 15 Dec 2011 06:43:13 +0100 5515361 http://www.medworm.com/index.php?rid=5515362&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F16p77h7n08x42344%2F Conclusions  These results suggest that intense TATE can be clinically used as a predictive factor for occult lymph node metastasis. Clinical relevance  The presence of intense TATE is an adjunctive histopathological marker to reinforce the indication of elective neck dissection of the patients with early OSCC. Content Type Journal ArticleCategory Original ArticlePages 1-6DOI 10.1007/s00784-011-0651-7Authors D. T. Oliveira, Department of Stomatology, Area of Pathology, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, CEP 17012-901 Bauru, São Paulo, BrazilT. P. Biassi, Department of Stomatology, Area of Pathology, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5515362 Tue, 13 Dec 2011 17:04:51 +0100 5515362 http://www.medworm.com/index.php?rid=5504906&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fn0317278x262q611%2F Conclusions  The results suggest that oral surgical procedures can be performed safely without alteration of the oral anticoagulant treatment. Cinical relevance  Local hemostasis with collagen fleece, local flap, and acrylic splint seems to be sufficient to prevent postoperative bleeding. Content Type Journal ArticleCategory Original ArticlePages 1-6DOI 10.1007/s00784-011-0649-1Authors Wolfgang Eichhorn, Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246 Hamburg, GermanyJens Burkert, Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246 Hamburg, GermanyOliver Vorwig, Department of Oral and Maxillofacial Surgery, University Medical ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5504906 Mon, 12 Dec 2011 06:33:04 +0100 5504906 http://www.medworm.com/index.php?rid=5504907&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F61n97h6k267j5661%2F Conclusions  Plaque-left-behind after mechanical cleaning contributes to the substantive action of an antibacterial toothpaste containing stannous fluoride (Crest-Pro-Health®). Clinical relevance  The absorptive capacity of plaque-left-behind after brushing is of utmost clinical importance, since plaque is predominantly left behind in places where its removal and effective killing matter most. Therewith this study demonstrates a clear and new beneficial effect of the use of antibacterial toothpastes. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0648-2Authors Marieke P. T. Otten, Department of Biomedical Engineering, University Medical Center Groningen and University of Groningen, A. Deusinglaan 1, 9713 AV G... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5504907 Mon, 12 Dec 2011 06:33:03 +0100 5504907 http://www.medworm.com/index.php?rid=5494948&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fyn0461776558232u%2F Conclusion  EPR analysis of peripheral blood samples might be appropriate to support the clinician in primary and follow-up diagnosis of potential tumours such as OSCC. Unfortunately, subgroup analysis characterises the method vulnerable to inflammation. Clinical relevance  Nevertheless, our preliminary results are intriguing, as diagnosis of OSCC appears possible by simple peripheral blood examination. Thus, further appraisal of this novel method with inclusion of different tumour entities, systemic conditions and inflammation in a larger study population appears highly valuable. Content Type Journal ArticleCategory Original ArticlePages 1-5DOI 10.1007/s00784-011-0655-3Authors Maximilian Moergel, Department of Oral and Maxillofacial Surgery, Univ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5494948 Thu, 08 Dec 2011 07:21:31 +0100 5494948 http://www.medworm.com/index.php?rid=5486851&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F6xm571563m6p3388%2F Conclusions and clinical relevance  Although a minimally invasive approach should clinically always be strived for, superficial preparation (or minimal roughening) with a diamond bur is recommendable for long-term bonding to eroded dentin. Content Type Journal ArticleCategory Original ArticlePages 1-11DOI 10.1007/s00784-011-0650-8Authors Brigitte Zimmerli, Leuven BIOMAT Research Cluster, Department of Conservative Dentistry, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Leuven, BelgiumJan De Munck, Leuven BIOMAT Research Cluster, Department of Conservative Dentistry, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Leuven, BelgiumAdrian Lussi, Department of Preventive, Resto... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5486851 Wed, 07 Dec 2011 10:51:13 +0100 5486851 http://www.medworm.com/index.php?rid=5486852&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fxr82833042515476%2F Conclusions  The survival rate of 86.9% at the 7-year recall demonstrates that adhesively luted all-ceramic CAD/CAM-generated restorations are suitable for restoration of extended coronal defects. Clinical relevance  CAD/CAM-generated all-ceramic restorations facilitate the reconstruction of deeply destroyed teeth irrespectively of the location of the cavity margins. Content Type Journal ArticleCategory Original ArticlePages 1-12DOI 10.1007/s00784-011-0642-8Authors Matthias J. Roggendorf, Department of Operative Dentistry and Endodontology, Medical Center for Dentistry, University Medical Center Giessen and Marburg, Marburg, GermanyBianka Kunzi, Dental Clinic 1—Operative Dentistry and Periodontology, University Hospital Erlangen, Erlangen, German... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5486852 Tue, 06 Dec 2011 07:01:35 +0100 5486852 http://www.medworm.com/index.php?rid=5486853&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F653573q1452612kk%2F Conclusion  These results suggest that excessive fluoride intake may affect periodontal soft tissues by increasing MMP-2, TIMP-1 and TGF-β, and thereby altering the MMP-2/TIMP-1 and TIMP-1/TGF-β ratios. Clinical relevance  Excessive fluoride consumption may alter the periodontal tissue homeostasis which may be detrimental in the maintenance of periodontal health. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0652-6Authors Müge Lütfioğlu, Department of Periodontology, Faculty of Dentistry, Ondokuz Mayıs University, Kurupelit, 55139 Samsun, TurkeyElif Eser Sakallıoğlu, Department of Periodontology, Faculty of Dentistry, Ondokuz Mayıs University, Kurupelit, 55139 Samsun, TurkeyUmur Sakallıoğlu, Departm... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5486853 Tue, 06 Dec 2011 07:01:34 +0100 5486853 http://www.medworm.com/index.php?rid=5486854&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fg6504p31118v83k4%2F Conclusion  Feldspathic porcelain coating of a Katana zirconia framework enhanced the bond strength of Estenia C&B indirect composite to zirconia independent of surface treatment. The use of a silane coupling agent and opaque material yields durable bond strength between the indirect composite and feldspathic-porcelain-coated zirconia. Clinical relevance  The results of the present study suggest that feldspathic porcelain coating of zirconia frameworks is an effective method to obtain clinically acceptable bond strengths of a layering indirect composite material to a zirconia framework. Content Type Journal ArticleCategory Original ArticlePages 1-11DOI 10.1007/s00784-011-0641-9Authors Ryosuke Fushiki, Department of Fixed Prosthodontics, Nihon Univ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5486854 Mon, 05 Dec 2011 06:33:02 +0100 5486854 http://www.medworm.com/index.php?rid=5486855&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fn538022811275628%2F Conclusion  Deglycosylation and roughness increase the COF on SCFs. Clinical relevance  Powered rotary–oscillatory brushing can deglycosylate a SCF, leading to a rougher film surface as compared with manual and sonic brushing, decreasing the lubricative function of the SCF. This is consistent with clinical mouthfeel evaluation after different modes of brushing. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0645-5Authors Deepak H. Veeregowda, Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, P.O. Box 196, 9700 AD Groningen, The NetherlandsHenny C. van der Mei, Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, P.O... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5486855 Mon, 05 Dec 2011 06:32:57 +0100 5486855 http://www.medworm.com/index.php?rid=5476580&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ft527j24j3p523812%2F Conclusion  Hyperbaric oxygen therapy can be used to increase the quality and the quantity of bone and to decrease the maturation time which may shorten the consolidation period of vertical distraction osteogenesis. Clinical relevance  The effect of hyperbaric oxygen therapy on vertical distraction osteogenesis procedure according to consolidation periods has been determined. Hyperbaric oxygen therapy may increase the quality and the quantity of bone and shorten the consolidation period. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0644-6Authors Ibrahim Mutlu, Ankara Mevki Military Hospital, Ankara, TurkeyYavuz Sinan Aydintug, Department of Oral and Maxillofacial Surgery, Gülhane Military Medical Academy (G... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5476580 Fri, 02 Dec 2011 06:48:16 +0100 5476580 http://www.medworm.com/index.php?rid=5476581&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fb810612323834706%2F Conclusions  Within the limits of this study, the novel-formulated RBCs showed better performance concerning DOC compared to conventional materials. Clinical relevance  For cavities deeper than 3 mm, all tested materials should be placed incrementally to ensure adequate polymerization. In large cavities (≥6 mm), the lowest increment should be cured at least 40 s. The novel-formulated RBCs might be cured in comparatively bigger increments. Content Type Journal ArticleCategory Original ArticlePages 1-10DOI 10.1007/s00784-011-0647-3Authors Karina E. Frauscher, Department of Restorative Dentistry, Dental School of Ludwig-Maximilians-University, Goethestr. 70, 80336 Munich, GermanyNicoleta Ilie, Department of Restorative Dentistry, Den... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5476581 Thu, 01 Dec 2011 19:29:59 +0100 5476581 http://www.medworm.com/index.php?rid=5476582&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fv066870641kx7010%2F Conclusions  Conical implant-abutment connections of two-piece dental implants do not prevent microleakage on a molecular level. Changes in lipopolysaccharide-induced proinflammatory cytokine gene expression facilitate the detection of lipopolysaccharide microleakage at implant-abutment interfaces. Clinical relevance  Small amounts of lipopolysaccharide released from intra-implant cavities can stimulate a detectable immunological response in human whole blood and may induce alveolar bone resorption via the osteoclast-activating pathway. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-011-0646-4Authors Sönke Harder, Department of Prosthodontics, Propaedeutics and Dental Materials, Christian-Albrechts University at ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5476582 Thu, 01 Dec 2011 06:59:27 +0100 5476582 http://www.medworm.com/index.php?rid=5476583&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fb708572px33665wj%2F Conclusions  Chewing ability was strongly associated with dental conditions. Clinical relevance  With respect to chewing ability, the findings support the shortened dental arch concept. Content Type Journal ArticleCategory Original ArticlePages 1-11DOI 10.1007/s00784-011-0640-xAuthors Qian Zhang, Department of Prosthetic Dentistry, Affiliated Hospital of Medical School, Qingdao University, Jiangsu Road 16#, Qingdao, People’s Republic of ChinaDick J. Witter, Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX Nijmegen, The NetherlandsEwald M. Bronkhorst, Department of Preventive and Restorative Dentistry, College of Dental Science, Radboud Univers... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5476583 Thu, 01 Dec 2011 06:59:24 +0100 5476583 http://www.medworm.com/index.php?rid=5469054&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F5275147745nuj821%2F Conclusions  N-O and E-I gingivitis showed a different microbiological profile of the subgingival environment. GCF calprotectin is a reliable marker of gingival inflammation, and its concentration in N-O gingivitis is correlated with its expression in E-I gingivitis. Clinical relevance  The modality of plaque accumulation seems to affect the subgingival microbiological profile associated with a gingivitis condition. Calprotectin levels in GCF may be regarded as a promising marker of the individual susceptibility to develop gingival inflammation in response to experimentally induced plaque accumulation. Content Type Journal ArticleCategory Original ArticlePages 1-10DOI 10.1007/s00784-011-0643-7Authors Roberto Farina, Research Centre for the Study o... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5469054 Tue, 29 Nov 2011 22:20:25 +0100 5469054 http://www.medworm.com/index.php?rid=5457708&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fm85511176j23300p%2F Abstract  The hypotheses tested were: survival rate of fully and partially retained glass-carbomer sealants is higher than those of high-viscosity glass-ionomer, with and without energy supplied, and that of resin composite; survival rate of fully and partially retained sealants of high-viscosity glass-ionomer with energy supplied is higher than those without energy supplied. The randomized clinical trial covered 407 children, with a mean age of 8 years. The evaluation took place after 0.5, 1 and 2 years. Survival of sealant material in occlusal and in smooth surfaces, using the traditional categorization (fully and partially retained versus completely lost sealants) and the modified categorization (fully and more than 2/3 of the sealant retained versus completely ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5457708 Mon, 28 Nov 2011 16:57:56 +0100 5457708 http://www.medworm.com/index.php?rid=5457707&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F658106pp5g66g6t0%2F Conclusions  FD analysis seems not so robust method as it was believed previously. It shows significant changes with image resolution and exposure time. Clinical relevance  Exposure time and scanning resolution of SPPs should be carefully chosen when evaluating the change in FD of alveolar bone for various bone disorders. Content Type Journal ArticleCategory Original ArticlePages 1-4DOI 10.1007/s00784-011-0639-3Authors B. Güniz Baksi, Department of Oral and Maxillofacial Radiology, Ege University, School of Dentistry, Izmir, TurkeyAleš Fidler, Department of Restorative Dentistry and Endodontics, University of Ljubljana, Faculty of Medicine, Hrvatski trg 6, 1000 Ljubljana, Slovenia Journal Clinical Oral InvestigationsOnline ISSN 1436-3771Pr... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5457707 Mon, 28 Nov 2011 16:57:56 +0100 5457707 http://www.medworm.com/index.php?rid=5449791&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fe550500078361378%2F Abstract  The purpose of this in vitro study was to evaluate the effect of endodontic treatment with or without fiber-post restorations on the fracture strength of abutment teeth under fixed partial dentures (FPDs). Seventy extracted premolar and canine teeth were used. Groups of fiber-post-retained and root-filled teeth were endodontically treated. The teeth were embedded in an acrylic resin perpendicular to the horizontal plane to create fixed partial dentures. The following groups were created using different abutments: (1) sound (S) canine/S premolar, (2) S canine/endodontically treated (ET) premolar, (3) ET canine/S premolar, (4) ET canine/ET premolar, (5) S canine/fiber-post-restored (FPR) premolar, (6) FPR canine/S premolar, and (7) FPR canine/FPR premolar. Each toot... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5449791 Thu, 24 Nov 2011 17:53:01 +0100 5449791 http://www.medworm.com/index.php?rid=5449792&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F0h851343u22qh677%2F In conclusion, the weekly application of a fluoride gel in orthodontic patients can reduce their caries activity. Initial caries lesions in orthodontic patients can be inactivated by weekly fluoride gel use at home. Content Type Journal ArticleCategory Original ArticlePages 1-5DOI 10.1007/s00784-011-0637-5Authors Christian H. Splieth, Department of Orthodontics, Preventive and Pediatric Dentistry, Center for Oral Health, Ernst Moritz Arndt University Greifswald, Rotgerberstraße 8, 17487 Greifswald, GermanyAnja Treuner, Department of Orthodontics, Preventive and Pediatric Dentistry, Center for Oral Health, Ernst Moritz Arndt University Greifswald, Rotgerberstraße 8, 17487 Greifswald, GermanyTomasz Gedrange, Department of Orthodontics, Preventive and Pediatric Dentistry, Center for... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5449792 Thu, 24 Nov 2011 06:51:24 +0100 5449792 http://www.medworm.com/index.php?rid=5449793&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fxv21rw7p4qw7268h%2F The objective of this study is to study the influence of final canal taper on the sealing ability of Real Seal 1 by using micro-computed tomography (micro-CT). Fifty-four single-rooted teeth were instrumented to apical size of 40 taper 4, 6, and 8. The teeth were divided into three groups. All teeth were filled with Real Seal 1 (RS1; SybronEndo, Orange, CA, USA). Roots were then scanned with mico-CT, and volume measurements of voids in the apical third and in sections at 1, 3, and 5 mm from the apex were calculated in the obturated roots using specialized CT software. Measurements were analyzed statistically by using ANOVA followed by Bonferroni multiple comparison correction. Data analysis showed that 0.08% and 0.06% apical tapered RS1 obturations provided better results than 0... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5449793 Thu, 24 Nov 2011 06:51:22 +0100 5449793 http://www.medworm.com/index.php?rid=5422164&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ftwl44784vp34t275%2F Abstract  We systematically reviewed whether the number of teeth is related to all-cause or circulatory mortality and whether replaced teeth are protective against all-cause or circulatory mortality. The search was based on the PubMed database. All cohort studies published in peer-reviewed journals were selected. Studies on periodontal disease and mortality were excluded if they did not provide information on the number of teeth. Risk estimates from studies with appropriate exposure definition, confounder adjustment and sample size were included in a meta-analysis. Three high-quality studies found a relationship between the number of teeth and circulatory mortality, whereas a moderate study did not. Two out of four moderate- to high-quality studies reported a relationship b... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5422164 Wed, 16 Nov 2011 06:50:33 +0100 5422164 http://www.medworm.com/index.php?rid=5408107&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fp54247x436738879%2F Abstract  The present study evaluated the influence of different composite bases and surface treatments on marginal and internal adaptation of class II indirect composite restorations, after simulated occlusal loading. Thirty-two class II inlay cavities were prepared on human third molars, with margins located in cementum. A 1-mm composite base extending up to the cervical margins was applied on all dentin surfaces in the experimental groups; impressions were made and composite inlays fabricated. The following experimental conditions were tested: no liner (control group), flowable composite treated with soft air abrasion (experiment 1), flowable composite sandblasted (experiment 2) and restorative composite sandblasted (experiment 3). All specimens were submitted to 1,000,0... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5408107 Tue, 08 Nov 2011 06:48:03 +0100 5408107 http://www.medworm.com/index.php?rid=5408109&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F7718603wt118871k%2F Abstract  The role of Th1 and Th2 cytokines in the pathogenesis of aggressive periodontitis has not been previously examined. The aim of this study was to analyse the expression and production of IL-2, IFN-γ, IL-4 and IL-13 in CD4+ cells from the peripheral blood of patients with aggressive periodontitis (AgP) and periodontally healthy controls. Gene expression was analysed in inactivated and activated CD4+ cells by real-time PCR. Cells were activated for 4, 8 and 24 h with anti-CD3/CD28 antibody, phytohemagglutinin (PHA), and Porphyromonas gingivalis (P.g.) outer membrane protein (OMP). Protein levels were measured in supernatants of activated CD4+ cells by bead-based immunoassay (CBA). Statistics were performed using U test (p < 0.05). In controls, IL-4 expres... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5408109 Tue, 08 Nov 2011 06:48:02 +0100 5408109 http://www.medworm.com/index.php?rid=5408108&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ff17121750q486595%2F Abstract  Hydrofluoric acid (HF) is commonly used for conditioning the glass ceramics either prior to cementation or for intraoral repair in prosthetic and restorative dentistry. The present study offers a review of chemical properties of HF used, highlight the possible hazardous effects of this agent, and to recommend the treatment approach for potential risks. Available published information documented in PubMed, Medline, and Picarta literature databases was reviewed. Additional information was derived from scientific reports, medical and chemical textbooks, handbooks, product information, manufacturers’ instructions, Internet web sites of the HF manufacturers. No report was found on the incidence of the hazardous effects of HF in dentistry. Reports from other fields pr... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5408108 Tue, 08 Nov 2011 06:48:02 +0100 5408108 http://www.medworm.com/index.php?rid=5360456&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fj1022330n4575t75%2F Abstract  The aim of this study was to determine whether hydroxyapatite β-tricalcium phosphate (HA-TCP) either alone or coated with Emdogain® (EMD) or recombinant human platelet-derived growth factor-BB (rhPDGF-BB) becomes osteoinductive in the murine thigh muscle model for osteoinduction. Twenty CD1 adult male mice had gelatin capsules implanted into the thigh muscle of both hind limbs. The capsules were either empty or contained one of the following: uncoated particulate HA-TCP, EMD-coated HA-TCP or rhPDGF-BB-coated HA-TCP. The implant sites were assessed histologically at 4 and 8 weeks. A semi-quantitative histological examination was performed to assess the inflammatory changes, reparative processes and osteoinduction within the graft site. At both 4 and 8 w... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5360456 Fri, 28 Oct 2011 06:04:35 +0100 5360456 http://www.medworm.com/index.php?rid=5360457&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F074p211441208gt6%2F Abstract  To gain more insight into the consequences of curing contraction within the tooth cavity, we assessed the margin behavior of 12 contemporary restorative systems in class V restorations with margins located on enamel and dentin after mechanical loading and water storage. Mixed class V cavities were prepared on extracted human molars and restored using five etch and rinse and seven self-etch adhesive systems with their corresponding composites. Marginal adaptation was evaluated by using a computer-assisted quantitative marginal analysis in a scanning electron microscope (SEM) on epoxy replicas before, after thermal and mechanical stressing and after 1 year of water storage. The interactions of “testing conditions”, “adhesive–composite combination” and... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5360457 Thu, 20 Oct 2011 15:53:46 +0100 5360457 http://www.medworm.com/index.php?rid=5335781&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F9v24864299x51j0g%2F Abstract  Smoking is a causative factor in oral squamous cell carcinomas (SCC). Unfortunately, only poor data exist regarding the quality of life of smokers vs non-smokers with SCC. The purpose of this study is to show a correlation between variables for comprehensive interdisciplinary rehabilitation and better patient quality of life (LQ). A total collective of 1,761 patients from 38 hospitals within the German-language area of Germany, Austria and Switzerland (DÖSAK-REHAB-STUDIE) yielding 1,652 patients’ questionnaires containing 147 items were evaluated. They refer to the periods before (t1) and immediately after surgery (t2), as well as at least 6 months later (t3). LQ was determined by the patient and ranges from 0% to 100%. Significant differences were found b... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5335781 Wed, 19 Oct 2011 15:44:10 +0100 5335781 http://www.medworm.com/index.php?rid=5335782&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fq372247428233663%2F Abstract  Periodontitis may exert an infectious and inflammatory burden, evidenced by increased C-reactive protein (CRP). This burden may impair blood glucose control (HbA1c). The aim of our study was to analyze whether periodontitis severity as measured with the periodontal inflamed surface area (PISA) and CRP predict HbA1c levels in a group of healthy Indonesians and a group of Indonesians treated for type 2 diabetes mellitus (DM2). A full-mouth periodontal examination, including probing pocket depth, gingival recession, clinical attachment loss, plaque index and bleeding on probing, was performed in 132 healthy Indonesians and 101 Indonesians treated for DM2. Using these data, PISA was calculated. In addition, HbA1c and CRP were analyzed. A validated questionnaire was us... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5335782 Wed, 19 Oct 2011 15:44:09 +0100 5335782 http://www.medworm.com/index.php?rid=5335783&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F02g0upg880x37722%2F Abstract  Hyaluronic acid application has been proven to be beneficial in a number of medical disciplines. The aim of the current study was to clinically evaluate the effect of local application of hyaluronan gel in conjunction with periodontal surgery. Fourteen patients with chronic periodontitis having four interproximal intrabony defects (≥3 mm) with probing depth values >5 mm were included in this split-mouth study. Following initial nonsurgical periodontal therapy and re-evaluation, defects were randomly assigned to be treated with modified Widman flap (MWF) surgery in conjunction with either 0.8% hyaluronan gel (test) or placebo gel (control) application. Clinical attachment level (CAL), probing depth (PD), gingival recession (GR), plaque index (PI), an... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5335783 Wed, 19 Oct 2011 15:44:08 +0100 5335783 http://www.medworm.com/index.php?rid=5335784&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fw846t5854125v374%2F Abstract  The aim of this study was to assess whether adolescent cases of periodontitis present with different hemogram findings than control subjects. This case–control study comprised 87 adolescent cases presenting with clinical attachment loss ≥3 mm in at least two teeth and 73 control subjects. Blood samples were obtained by venipuncture and analyzed in an Abbott Cell-Dyn 3,500 hematology analyzer for values of white blood cells and red blood cells, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, red-cell distribution width, platelets, and mean platelet volume. Hematocrit values were obtained using volume fractions read from capillary tubes. The associations between log-transformed hemogram variables ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5335784 Tue, 18 Oct 2011 15:58:56 +0100 5335784 http://www.medworm.com/index.php?rid=5335785&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fm141411110l08444%2F Abstract  The inflammatory mediators, serum elastase and C-reactive protein (CRP), are associated with an increased risk for coronary heart disease. Thus, the aim of this study is to compare systemic inflammatory mediators in periodontally healthy controls (C), patients with untreated aggressive (AgP) and chronic (ChP) periodontitis. C [periodontal pocket probing depth (PPD)  <3.6 or <5 mm without bleeding (BOP), BOP < 10%], ChP (PDD ≥ 3.6 mm and probing attachment loss ≥5 mm at >30% of sites; age >35 years), and AgP (clinically healthy; PDD ≥ 3.6 mm at >30% of sites, bone loss ≥50% at ≥2 teeth; age ≤35 years) were examined clinically, and the body mass index was assessed. Blood was sampled for assessm... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5335785 Tue, 18 Oct 2011 15:58:55 +0100 5335785 http://www.medworm.com/index.php?rid=5335786&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fv52j6t2748kj2382%2F Abstract  Pierre Robin sequence is a well known craniofacial entity. There are numerous ways to treat the respiratory insufficiency, but sometimes surgical intervention is needed. Tracheotomy could be associated with morbidity, and distraction osteogenesis has been established as a stable method to obtain a safe airway. Distraction osteogenesis has traditionally been performed with an external device. In this manuscript we describe the feasibility of an internal bioresorbable device. Retrospective descriptive study was performed in a tertiary academic children’s hospital. After multidisciplinary team consultation, 12 consecutive patients with Robin sequence were treated with this internal distraction device. The mean age at surgery was 32 days, and the average amount... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5335786 Tue, 18 Oct 2011 15:58:54 +0100 5335786 http://www.medworm.com/index.php?rid=5335787&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fl277444138pl0j30%2F Abstract  Implant-supported prosthodontics requires precise impressions to achieve a passive fit. Since the early 1990s, in vitro studies comparing different implant impression techniques were performed, capturing the data mostly mechanically. The purpose of this study was to evaluate the accuracy of three different impression techniques digitally. Dental implants were inserted bilaterally in ten polymer lower-arch models at the positions of the first molars and canines. From each original model, three different impressions (A, transfer; B, pick-up; and C, splinted pick-up) were taken. Scan-bodies were mounted on the implants of the polymer and on the lab analogues of the stone models and digitized. The scan-body in position 36 (FDI) of the digitized original and master cas... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5335787 Tue, 18 Oct 2011 15:58:53 +0100 5335787 http://www.medworm.com/index.php?rid=5335788&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F2v60r36111421586%2F Abstract  The aim of this systematic review was to establish whether the clinical debonding (failure) rates of orthodontic brackets bonded either with resin-modified glass ionomer (RM-GIC) or with composite resin adhesive are the same. Five databases were searched for articles up to 18 November 2010. Inclusion criteria were titles/abstracts relevant to the review question and two or more arm clinical trial. Exclusion criteria were the following: no computable data recorded and subjects of both groups not followed up in the same way. From the accepted trials, datasets were analysed concerning clinical precision and internal validity. Eleven trials were accepted. From these, 15 dichotomous datasets were extracted. Relative risk with 95% confidence interval of nine datasets sh... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5335788 Mon, 17 Oct 2011 16:00:29 +0100 5335788 http://www.medworm.com/index.php?rid=5297027&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fdu6m6k2hu3763734%2F This study was conducted to assess the coincidence of mucosal hyperplasia in the maxillary sinus and related clinical diagnoses of posterior maxillary teeth found in cone beam computed tomography (CBCT) scans. A total of 204 patients who underwent CBCT examinations between 2006 and 2008 were evaluated retrospectively. Clinical and CBCT findings were correlated using patient records. Absolute frequencies, odds ratios (OR), and 95% confidence intervals (95% CI) were calculated for statistical evaluations. There was a pronounced association between periodontitis and radiological signs of sinusitis. Basal mucosal wall thickening was more likely in patients with decayed and non-vital teeth compared to patients with sound teeth (OR = 5.2; 95% CI = 1.2–23.1). Basal mucosal wall th... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5297027 Tue, 04 Oct 2011 05:55:48 +0100 5297027 http://www.medworm.com/index.php?rid=5285678&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F67p3174612n34214%2F The objective of this study is to investigate the prevalence of missing teeth and prosthodontic replacements in a Chinese adult population using a hierarchical dental functional classification system. A total of 1,462 dentate subjects over 40 years from Shandong Province, China were included and categorized in the functional classification system with and without tooth replacements. Depending on replacements, subjects could be reclassified (promoted) to categories reflecting higher functionality. “Promotions” were considered indicators for prosthodontic effectiveness. Homogeneities after dichotomization into functional categories appeared to be moderate to good. In the “≥10 teeth in each jaw” branch, mean number of teeth and posterior occluding pairs were 27.93 ± ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5285678 Fri, 30 Sep 2011 05:50:17 +0100 5285678 http://www.medworm.com/index.php?rid=5273828&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fh43835162587k214%2F Abstract  The marginal integrity of class V restorations in a silorane- and a group of methacrylate-based composite resins with varying viscosities was tested in the present study. Different adhesives (OptiBond FL, KerrHawe; AdheSE One, Vivadent; or Silorane System Adhesive, 3M ESPE) were applied to168 standardized class V cavities. The cavities (n = 12) were filled with a wide range of different viscous composite resins: Filtek Silorane, 3M ESPE; els and els flow, Saremco; Tetric EvoCeram and Tetric EvoFlow, Vivadent; Grandio, Voco; and Ultraseal XT Plus, Ultradent. Microleakage of the restoration was assessed by dye penetration (silver staining) on multiple sections with and without thermocycling and mechanical loading (TCML: 5,000 × 5–55°C; 30 s/cycle; 50... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5273828 Tue, 27 Sep 2011 05:47:13 +0100 5273828 http://www.medworm.com/index.php?rid=5273829&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F10708p31173756t4%2F Abstract  Polyether impression materials have been used in dentistry for more than 40 years. Allergic reactions to these materials such as reported in the 1970s ceased after replacement of a catalyst. Very recently, however, patients have started to report symptoms that suggest a new allergic reaction from polyether impression materials. Here, we report on the results of allergy testing with polyether impression materials as well as with its components. Eight patients with clinical symptoms of a contact allergy (swelling, redness or blisters) after exposure to a polyether impression material were subjected to patch tests, two of them additionally to a prick test. A further patient with atypical symptoms of an allergy (nausea and vomiting after contact with a polyether ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5273829 Tue, 27 Sep 2011 05:47:12 +0100 5273829 http://www.medworm.com/index.php?rid=5260740&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fy067667128323031%2F Abstract  In this longitudinal study, the craniofacial morphology and evaluated soft tissue profile changes, at 6 and 12 years of age in patients with complete bilateral cleft lip and palate (CBCLP) were compared. Lateral cephalograms from 148 patients with CBCLP, treated consecutively at three European cleft centers, Gothenburg (n A = 37), Nijmegen (n B = 26), and Oslo (n C = 85), were evaluated. Eighteen hard tissue and ten soft tissue landmarks were digitized. Paired t test, Pearson’s correlation coefficients, and multiple regression models were applied for statistical analysis. ANOVA and Tukey-B, as a post hoc test, were used to evaluate the increments and compare centers. Hard and soft tissue data were superimposed using the generalized Procrustes a... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5260740 Fri, 23 Sep 2011 15:51:40 +0100 5260740 http://www.medworm.com/index.php?rid=5260741&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fa477731g1v02h77h%2F In this study, we tested effects of BPs on expression of two critical genes for osteoclastogenesis, M-CSF, and OPG in the process of osteoblast differentiation from hMSC. (1) The cells were cultured in osteogenic induction medium together with 0 (control group) and 10–8 M alendronate, pamidronate for up 2 and 3 weeks (for real-time PCR) and 3 and 4 weeks (for ELISA). (2) The real-time PCR protocol for M-CSF, OPG, and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) consist of 40 cycles. (3) Enzyme-linked immunosorbent assay (ELISA): the amounts of M-CSF and OPG in the culture medium were determined using commercially available ELISA kits for M-CSF and OPG. Treatment of differentiating cells with alendronate or pamidronate, nitrogen-containing BPs increase the express... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5260741 Thu, 22 Sep 2011 05:52:29 +0100 5260741 http://www.medworm.com/index.php?rid=5250802&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fq054l0rln8198u17%2F Abstract  The aim of this study was to clinically and radiographically evaluate peri-implant bone level changes after rehabilitation of a fully edentulous maxilla by placement of six implants in either fresh extraction sites or healed edentulous ridges up till 18 months after implant placement. Twenty patients with a terminal dentition in the maxillae (11 men, 9 women) received a total of 120 OsseoSpeed® implants; 118 implants could be loaded immediately of which 59 were placed in extraction sockets and 59 were placed in healed sites. Within 24 h after surgery, all patients received a chairside-assembled, fibre-reinforced temporary fixed prosthetic reconstruction in occlusion. Six months post-surgery, final screw-retained CoCr (15) or Ti (5) computer numerical co... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5250802 Mon, 19 Sep 2011 13:43:24 +0100 5250802 http://www.medworm.com/index.php?rid=5208797&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fn376762425844580%2F This study aims to evaluate the correlation between hyposalivation, measured by unstimulated saliva flow rates (SFR) and fungal colonization of the oral cavity, and also the resistance of isolated Candida strains to antimicrobial therapy. Fifty-three consecutive patients with radiotherapy were examined for late radiation damage on dental hard tissue and the salivary glands (SFR over a period of 5 min). The SFR were divided into three different values of hyposalivation: grade I (SFR 0.1–0.25 ml/min), grade II (SFR ≤0.1 ml/min), and grade III (SFR = 0.0 ml/min). Candidal colonization was defined using Sabouraud agar and identified using API 20C AUX (biomerieux) in the patients’ rinsing water. Susceptibility was tested with Etest (amphotericin B, ketoconacol... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5208797 Fri, 09 Sep 2011 05:46:19 +0100 5208797 http://www.medworm.com/index.php?rid=5208798&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fe778067634j23623%2F Abstract  The purpose of this study was to determine if three strains of bacteria could impact the mechanical or surface properties of a dental resin material. Resin material specimens were incubated at 37°C in sterile saline, tryptic soy broth supplemented with sucrose (TSBS), or TSBS inoculated with Streptococcus mutans, Streptococcus gordonii, or Streptococcus sanguis. The specimens were subjected to Fourier transform infrared spectroscopy before and after incubation. The flexural strength test was performed once a week for 6 weeks. Microhardness and scanning electron microscopy (SEM) was performed on specimens at 1 and 6 weeks. Differences in the area under the carbonyl peak were statistically significant for the specimens incubated in the media inoculated wit... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5208798 Mon, 05 Sep 2011 16:15:29 +0100 5208798 http://www.medworm.com/index.php?rid=5196446&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fkv8622v5532m1k2w%2F Abstract  To present the safety profile, the early healing phase and the clinical outcomes at 24 weeks following treatment of human intrabony defects with open flap debridement (OFD) alone or with OFD and rhGDF-5 adsorbed onto a particulate β-tricalcium phosphate (β-TCP) carrier. Twenty chronic periodontitis patients, each with at least one tooth exhibiting a probing depth ≥6 mm and an associated intrabony defect ≥4 mm entered the study. Ten subjects (one defect/patient) were randomized to receive OFD alone (control) and ten subjects OFD combined with rhGDF-5/β-TCP. Blood samples were collected at screening, and at weeks 2 and 24 to evaluate routine hematology and clinical chemistry, rhGDF-5 plasma levels, and antirhGDF-5 antibody formation. Plaque and... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5196446 Fri, 02 Sep 2011 05:50:33 +0100 5196446 http://www.medworm.com/index.php?rid=5184048&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fl3068104187w0p5q%2F Abstract  The aim of this study was to evaluate the 4-year clinical outcomes following regenerative surgery in intrabony defects with either EMD + BCP or EMD. Twenty-four patients with advanced chronic periodontitis, displaying one-, two-, or three-walled intrabony defect with a probing depth of at least 6 mm, were randomly treated with either EMD + BCP (test) or EMD alone (control). The following clinical parameters were evaluated at baseline, at 1 year and at 4 years after regenerative surgery: plaque index, gingival index, bleeding on probing, probing depth, gingival recession, and clinical attachment level (CAL). The primary outcome variable was CAL. No differences in any of the investigated parameters were observed at baseline between the two grou... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5184048 Wed, 31 Aug 2011 15:55:18 +0100 5184048 http://www.medworm.com/index.php?rid=5184049&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fb4564573111773u3%2F Abstract  The present study focuses on the correlation between the expression pattern of β-catenin (component of Wnt signaling), ΔNp63 (proliferation marker), and Notch 1 (transmembrane receptor) in oral squamous cell carcinoma. The study also aims to investigate the interaction between β-catenin and ΔNp63 in oral cancer. Furthermore, we also analyzed the prognostic significance of β-catenin, ΔNp63, and Notch 1 in oral squamous cell carcinoma. Immunohistochemical analysis of β-catenin, ΔNp63, and Notch 1 were done in 62 cases of oral squamous cell carcinoma. Co-immunoprecipitation analysis was done to study the possible interaction between β-catenin and ΔNp63 in oral cancer. Kaplan–Meier method was used to estimate overall and disease-free survival, and the Log-r... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5184049 Wed, 31 Aug 2011 15:55:16 +0100 5184049 http://www.medworm.com/index.php?rid=5161781&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fh823837840720306%2F Abstract  The addition of epinephrine in dental local anaesthesia results in a longer and deeper anaesthesia under almost ischemic conditions. For short-time dental treatments, epinephrine-reduced anaesthetics may offer shorter and more individual anaesthesia with reduced potential side effects. The aim of this study was a clinical evaluation of anaesthetic potency and adverse effects of an epinephrine-reduced articaine formulation in dental patients undergoing short-time routine treatment. In a prospective clinical, not interventional, study between January 2008 and February 2009, 908 patients undergoing short-time dental treatment in five medical centers were anaesthetized with 4% articaine 1:400,000 epinephrine (Ubistesin™, 3M/ESPE, Seefeld, Germany). Efficacy and safe... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5161781 Mon, 22 Aug 2011 15:57:34 +0100 5161781 http://www.medworm.com/index.php?rid=5161782&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F253263034l8p4700%2F Abstract  In the present article, the authors want to present the results of a retrospectively evaluated consecutive series of patients with surgically treated isolated orbital floor fractures (OFF; “blow-out fractures”) concerning the functional outcome after OFF and give detailed recommendations based on the clinical and radiological findings. A series of 60 patients with isolated OFF over a 5-year period needing surgically repair at the same institution were evaluated. Patient data were analysed in terms of preoperative and postoperative clinical parameters and radiological findings. The analysed parameters were type of fracture, diplopia, gaze restriction, enophthalmos, materials used for repair, surgical approach and timing of the surgical intervention. Burst type ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5161782 Fri, 19 Aug 2011 16:00:41 +0100 5161782 http://www.medworm.com/index.php?rid=5161783&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F5613030730086412%2F Abstract  Betel quid (BQ) chewing is a common oral habit in South Asia and Taiwan. BQ consumption may increase the risk of oral squamous cell carcinoma (OSCC), oral submucous fibrosis (OSF), and periodontitis as well as systemic diseases (atherosclerosis, hypertension, etc.). However, little is known about the toxic effect of BQ components on endothelial cells that play important roles for angiogenesis, carcinogenesis, tissue fibrosis, and cardiovascular diseases. EAhy 926 (EAHY) endothelial cells were exposed to arecoline, a major BQ alkaloid, for various time periods. Cytotoxicity was estimated by 3-(4, 5- dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide assay. The cell cycle distribution of EAHY cells residing in sub-G0/G1, G0/G1, S-, and G2/M phases was analyzed ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5161783 Wed, 17 Aug 2011 05:56:11 +0100 5161783 http://www.medworm.com/index.php?rid=5161784&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fd8821ngt67763828%2F This study investigated the influence of the elastic modulus of supporting dies on the fracture strengths of all-ceramic materials used in dental crowns. Four different types of supporting die materials (dentin, epoxy resin, brass, and stainless steel) (24 per group) were prepared using a milling machine to simulate a mandibular molar all-ceramic core preparation. A total number of 96 zirconia cores were fabricated using a CAD/CAM system. The specimens were divided into two groups. In the first group, cores were cemented to substructures using a dual-cure resin cement. In the second group, cores were not cemented to the supporting dies. The specimens were loaded using a universal testing machine at a crosshead speed of 0.5 mm/min until fracture occurred. Data were statistically ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5161784 Tue, 16 Aug 2011 06:18:26 +0100 5161784 http://www.medworm.com/index.php?rid=5132122&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fxr13588888k8k60w%2F Abstract  A pulpotomy is the therapy for management of pulp exposures due to caries in symptom-free primary molars. The aim was to longitudinally compare the relative effectiveness of the Er:YAG laser, calcium hydroxide and ferric sulphate techniques with dilute formocresol in retaining symptom-free molars. Two hundred primary molars in 107 healthy children were included and randomly allocated to one technique. The treated teeth were blindly reevaluated after 6, 12, 18, 24 and 36 months. Descriptive data analysis and logistic regression analysis accounting for multiple observations per patient by generalised estimating equation were used. Additionally, various influences including tooth type, upper and lower jaws, type of anaesthesia, operator and the final restoration... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5132122 Sat, 13 Aug 2011 06:10:46 +0100 5132122 http://www.medworm.com/index.php?rid=5132123&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F66r728ug6333x336%2F Abstract  Dental implants are prone to bacterial colonization which may result in bone destruction and implant loss. Treatments of peri-implant disease aim to reduce bacterial adherence while leaving the implant surface intact for attachment of bone-regenerating host cells. The aims of this study were to investigate the antimicrobial efficacy of gaseous ozone on bacteria adhered to various titanium and zirconia surfaces and to evaluate adhesion of osteoblast-like MG-63 cells to ozone-treated surfaces. Saliva-coated titanium (SLA and polished) and zirconia (acid etched and polished) disks served as substrates for the adherence of Streptococcus sanguinis DSM20068 and Porphyromonas gingivalis ATCC33277. The test specimens were treated with gaseous ozone (140 ppm; 33 mL... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5132123 Sat, 13 Aug 2011 06:10:45 +0100 5132123 http://www.medworm.com/index.php?rid=5132124&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F45u483g8u7704080%2F This study demonstrated that human periodontal granulation tissues contain isolatable multipotent stem cells. The cells may be a good source for autotransplantation in subsequent treatment. Content Type Journal ArticlePages 1-10DOI 10.1007/s00784-011-0600-5Authors Tzu-Yuan Hung, Institute of Oral Medicine, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701 TaiwanHsiang-Chun Lin, Institute of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, TaiwanYing-Jen Chan, Institute of Oral Medicine, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701 TaiwanKuo Yuan, Institute of Oral Medicine, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701 Taiwan... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5132124 Fri, 12 Aug 2011 06:14:34 +0100 5132124 http://www.medworm.com/index.php?rid=5132125&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fk672k3xj224g815q%2F Abstract  The aim of this cross-sectional outcome study using retrospective data capture of treatment histories was to examine the characteristics of young children with unilateral cleft lip and palate who had poor dental arch relationship (i.e., Goslon 5). The study sample comprised 120 children born with nonsyndromic complete unilateral cleft lip and palate between 1995 and 2003, and were aged between 5.0 and 7.0 years (mean age, 5.1 years) at the time of data collection. The dental arch relationship was assessed using the Goslon yardstick from intraoral dental photographs. An independent investigator recorded treatment histories from the clinical notes. The inter- and intraexaminer agreements evaluated by weighted kappa statistics were high. There was no associ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5132125 Fri, 12 Aug 2011 06:14:32 +0100 5132125 http://www.medworm.com/index.php?rid=5126414&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F013t210272576t04%2F This study suggests that the tested spectrophotometer can be recommended for the clinical application of shade selection. Content Type Journal ArticlePages 1-5DOI 10.1007/s00784-011-0590-3Authors Siegbert Witkowski, Department of Prosthodontics, School of Dentistry, Albert-Ludwigs-University Freiburg, Hugstetter Strasse 55, 79106 Freiburg, GermanyNao-Daniel Yajima, Department of Prosthodontics, School of Dentistry, Albert-Ludwigs-University Freiburg, Hugstetter Strasse 55, 79106 Freiburg, GermanyMartin Wolkewitz, Institute of Medical Biometry and Medical Informatics, University Hospital Center Freiburg, Stefan-Meier-Strasse 26, 79104 Freiburg, GermanyJorge R. Strub, Department of Prosthodontics, School of Dentistry, Albert-Ludwigs-University Freiburg, Hugstetter Strasse 55, 79106 F... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5126414 Wed, 10 Aug 2011 15:40:30 +0100 5126414 http://www.medworm.com/index.php?rid=5109496&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fl007746qtm07232t%2F This study aims to investigate the early outcome of a dental implant with bioactive calcium–phosphate (CaP) coating in the first year of usage in different clinical indications in partially edentulous patients, after early and delayed prosthetic loading. Therefore, in a prospective follow-up study, the cumulative survival and success rate of a conical, self-drilling and self-tapping implant system after 6 months and 1 year post-insertion was evaluated. A total of 311 CaP-coated implants were placed in 124 patients. Seventy-two implants in clinical high-quality bone situation were loaded after 2 weeks post-insertion with the definite restoration; the rest after 6 months. The indication for implant placement was treatment of partial dentate mandible and maxilla. O... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5109496 Sat, 06 Aug 2011 05:59:38 +0100 5109496 http://www.medworm.com/index.php?rid=5109497&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fr23g730746662273%2F Abstract  For the treatment of bisphosphonate-associated osteonecrosis of the jaw (BP-associated ONJ), poor cure rates are reported. In many cases, repeated osseous exposition and infection may occur. The currently recommended management of affected patients is antibiotic treatment and bony decortication, which is often complicated by soft tissue deficits due to chronic infection. In severe cases osteonecrosis can be managed often only by continuity resections of the mandible. For this purpose, we developed a new surgical procedure, which allows an effective closure of difficult jaw wounds in the lateral mandible. In the last 3 years, 20 patients with BP-associated osteonecrosis of the lower jaw were treated successfully with a modified defect-covering method using a m... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5109497 Fri, 05 Aug 2011 05:57:56 +0100 5109497 http://www.medworm.com/index.php?rid=5097928&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F3m06p2l476226337%2F The objective of this study is to investigate the ability of a non-contact electromagnetic vibration device to assess a simulated periodontal ligament and alveolar bone conditions in experimental tooth models by applying mechanical parameters (resonant frequency, elastic modulus, and coefficient of viscosity). The non-contact electromagnetic vibration device was made up of three components: vibrator, detector, and analyzer. The experimental tooth model consisted of a cylindrical rod made of polyacetal, a tissue conditioner for soft lining material, and urethane or urethane foam to simulate the tooth, periodontal ligament, and alveolar bone, respectively. The tissue conditioner was prepared by mixing various volumes of liquid with powder. Periotest® values (PTVs) were also measured u... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5097928 Tue, 02 Aug 2011 06:17:16 +0100 5097928 http://www.medworm.com/index.php?rid=5088571&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ff7m1t66u220913u3%2F This study was carried out to assess whether the spatial resolution has an impact on the detection accuracy of proximal caries in flat panel CBCT (cone beam computerized tomography) images and if the detection accuracy can be improved by flat panel CBCT images scanned with high spatial resolution when compared to digital intraoral images. The CBCT test images of 45 non-restored human permanent teeth were respectively scanned with the ProMax 3D and the DCT Pro scanners at different resolutions. Digital images were obtained with a phosphor plate imaging system Digora Optime. Eight observers evaluated all the test images for carious lesion within the 90 proximal surfaces. With the histological examination serving as the reference standard, observer performances were evaluated by receive... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5088571 Fri, 29 Jul 2011 16:02:28 +0100 5088571 http://www.medworm.com/index.php?rid=5070292&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fhl5619l480457u48%2F The objective of this retrospective study was to compare biological and technical complications of implant-supported and tooth–implant-supported double crown-retained dentures (DCRDs) with those of tooth-supported DCRDs. Sixty-three DCRDs were monitored. One study group included 16 prostheses with a combination of implants and natural teeth as double crowns (ti group), whereas in the second study group, 19 dentures were retained exclusively on implants (ii group); a third study group with 28 exclusively tooth-supported dentures served as controls (tt group). Tooth loss, implant failure, and technical complications (loss of retention of primary crown, abutment screw loosening, loss of facing, fracture of resin denture teeth and fracture of saddle resin) were analysed. During the obs... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5070292 Mon, 25 Jul 2011 15:47:35 +0100 5070292 http://www.medworm.com/index.php?rid=5070293&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fq05144u1163481u2%2F Abstract  The aim of this study was to evaluate the clinical performance of S3 Bond (Kuraray Corp., Japan) and G-Bond (GC Corp., Japan) all-in-one bonding agents, over 3 years in non-carious cervical lesions (NCCLs). Ethics Committee approval was obtained, and 60 restorations were placed in 11 patients aged 45–84 years (mean 60.5 years), using either Clearfil ST resin composite (Kuraray) and S3 Bond or Gradia resin composite (GC) and G-Bond alternately, without phosphoric acid etch on the uncut enamel margins. Patients were recalled at 6 months, 1 year, 2 years and 3 years, and photographs were taken for assessment of colour match and marginal discoloration. One patient was not available at 3 years, resulting in 54 restorations being ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5070293 Mon, 25 Jul 2011 15:47:34 +0100 5070293 http://www.medworm.com/index.php?rid=5063833&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fy1n187178785t068%2F This study evaluated the bond strengths of conventional (chemically and dual-polymerized) and simplified resin-based luting cements with their corresponding adhesives to superficial dentin (SD) and deep dentin (DD). Recently extracted third molars (N = 70, n = 10 per group) were obtained and prepared for testing procedures. After using their corresponding etchants, primers, and/or adhesive systems, the conventional and simplified cements (Variolink II [group A, conventional], Bifix QM [group B, conventional], Panavia F2.0 [group C, conventional], Multilink Automix [group D, simplified], Superbond C&B [group E, conventional], Clearfil Esthetic Cement [group F, simplified], Ketac-Fil [group G, conventional]) were adhered incrementally onto the dentin surfaces using polyethylene... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5063833 Thu, 21 Jul 2011 18:11:29 +0100 5063833 http://www.medworm.com/index.php?rid=5063834&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fe20q1j1nhn321q73%2F Abstract  Investigating the psychological impact of dental treatment is of high relevance to clinical decision makers and a promising approach for furthering patient satisfaction. This paper aims at detecting factors which influence the psychological impact of prosthodontic treatment and its relevance for the dentist. We apply microeconometric techniques and, specifically, control for sample selection bias in order to derive evidence from a panel database which measures oral health-related quality of life (OHIP-G) before and after treatment. The survey rests upon an initial evaluation of 381 patients between 2004 and 2005 and a follow-up in January 2006 (response rate 47%, corresponding to 180 patients) at the University Medical Centre Regensburg, Germany. Our findings indi... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5063834 Thu, 21 Jul 2011 18:11:27 +0100 5063834 http://www.medworm.com/index.php?rid=5063835&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fl60j367743p41h53%2F Abstract  The purpose of this study was to evaluate the clinical performance of laminate porcelain veneers bonded with a light-cured composite. Thirty patients were restored with 119 porcelain laminate veneers. The veneers were studied for an observation time of 7 years. Marginal adaptation, marginal discoloration, secondary caries, color match, and anatomic form were clinically examined following modified United States Public Health Service (USPHS) criteria. Each restoration was also examined for cracks, fractures, and debonding. Pulp vitality was verified. In addition, plaque and gingival indexes and increase in gingival recession were recorded. Survival rate evaluating absolute failures and success rate describing relative failures were statistically determined, usi... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5063835 Tue, 19 Jul 2011 23:38:01 +0100 5063835 http://www.medworm.com/index.php?rid=5030485&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F231525810u746268%2F Abstract  The aim of this study was to evaluate the remineralization potential of three silica-containing NaF dentifrice systems in an intraoral model. Subjects (N = 30) in this randomized, three-phase, 28-day, crossover study served as their own control. Each participant wore a customized orthodontic appliance attached to a mandibular molar and contained one tooth block with caries-like lesion. For each phase, participants engaged in twice-daily brushing for 2 min with one of the following dentifrices: 500 ppm F, 500 ppm F plus functionalized β-tricalcium phosphate (fTCP), and a clinically proven 1,100 ppm F. After each phase, appliances were removed, and specimens were analyzed using surface microhardness (SMH), transverse microradio... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5030485 Wed, 13 Jul 2011 05:59:09 +0100 5030485 http://www.medworm.com/index.php?rid=5020789&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F5771n2v05202uj22%2F Abstract  The aim of this in vitro study was to investigate the two-body wear of different ceramics. Two-body wear tests were performed in a chewing simulator with steatite and enamel antagonists, respectively. Specimens were loaded in a pin-on-block design with a vertical load of 50 N for 1.2 × 105 cycles; (f = 1.6 Hz; lateral movement, 1 mm; mouth opening: 2 mm). Human enamel was used as a reference. Three zirconia ceramics, three veneering porcelains, two glass-infiltrated and one lithium disilicate ceramic were investigated. Veneering and lithium disilicate ceramics were glazed before testing. Surface roughness Ra (SP6, Perthen-Feinprüf, G) and wear depth were determined using a 3D scanner (Laserscan 3D, Willytec, G). SEM (Quanta FEG 400, FE... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5020789 Fri, 08 Jul 2011 06:31:34 +0100 5020789 http://www.medworm.com/index.php?rid=5009956&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fxm1717127544gk44%2F This study was conducted to investigate the distribution and severity of tooth wear in deciduous dentition and its relationship with possible risk factors. A stratified cluster sample of 243 5–7-year-old children was examined using the tooth wear index of Smith and Knight, and their exposure to intrinsic and extrinsic risk factors was retrospectively investigated through a structured questionnaire. The severity of wear was quantitatively estimated by the number of surfaces with affected dentine and by the cumulative score of the sextants, based on the Basic Erosive Wear Examination scoring system. Only 1.6% of the children were tooth wear free, whereas 45.6% had moderate to severe wear involving dentine. Maxillary canines were the most affected teeth (83.2%), and occlusal/incisal t... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5009956 Wed, 06 Jul 2011 05:55:45 +0100 5009956 http://www.medworm.com/index.php?rid=5009957&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F626r32m433qu703q%2F Abstract  Size reduction through compression is an important issue that needs to be investigated for possible effects on image quality. The aim of the present study was to evaluate the subjective image quality of digital panoramic radiographs which were lossless and lossy compressed for the visualization of various anatomical structures. Fifty-five digital panoramic radiographs in Tagged Image File Format (Tiff) were used in the study. Two types of lossy (Joint Photographic Experts Group (Jpeg)) and one type of lossless (Lempel–Ziv–Welch) compression were applied to the original radiographs. These radiographs were evaluated by two observers separately for the visibility of some anatomical structures with visual grading. Mean quality number for each radiograph was obtain... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5009957 Wed, 06 Jul 2011 05:55:43 +0100 5009957 http://www.medworm.com/index.php?rid=5009958&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fm4261m346h722084%2F Abstract  Acidogenicity and the levels of mutans streptococci (MS) in dental plaque after the use of Lactobacillus rhamnosus GG (LGG) and Lactobacillus reuteri were determined. The study had a randomised, double-blind, crossover design. Thirteen volunteers used tablets containing LGG or a combination of L. reuteri SD2112 and PTA 5289 for 2 weeks. At baseline and at the end of each tablet period, all available supragingival plaque was collected. Lactic acid production was determined from a fixed volume (8 μl) of fresh plaque and the rest of the plaque was used for culturing MS and lactobacilli. The retention of probiotics to the plaque was assessed using PCR techniques. No probiotic-induced changes were found in the acidogenicity of plaque. Also, MS counts remained ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=5009958 Wed, 06 Jul 2011 05:55:41 +0100 5009958 http://www.medworm.com/index.php?rid=4999235&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F937410t407247r15%2F Abstract  The use of the vascularized fibula graft has already been established for reconstruction of the mandible following ablative surgery. In order to reconstruct the vertical height of the alveolar process and improve implant position as well as angulation, some therapeutic options are available, including primary use of the fibula as a double-barrel graft and vertical distraction as well as later augmentation with avascular bone grafts. We analyzed the anatomic and morphologic features in 40 fibula bones of 20 cadavers and provided the mean cortical thickness of different transplant sites. Furthermore, we investigated the primary implant stability of dental implants inserted monocortically in harvested fibula segments using established biomechanical methods as well as... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4999235 Thu, 30 Jun 2011 17:49:06 +0100 4999235 http://www.medworm.com/index.php?rid=4999236&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fl76t170209072x6k%2F This study was aimed at looking into the microbiological/inflammatory parameters predicting the periodontal success/failure of fixed prostheses. Microbiological and inflammatory patterns were studied at 102 sites having metaloceramic crowns in place from 3 to 6 years and divided in healthy sites (HS), gingivitis affected (MG), and periodontitis affected (PB). Total bacterial flora and selected indicator species in subgingival plaque were quantified by quantitative real-time PCR. The concentrations of IL-1β, IL-6, and TNF-α were determined in gingival crevicular fluid (GCF) by enzyme-linked immunosorbent assays. The experimental sites showed no significant difference with respect to the age and gender of the patients and to the position of the crown margins. Poor marginal adapt... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4999236 Thu, 30 Jun 2011 09:38:45 +0100 4999236 http://www.medworm.com/index.php?rid=4993659&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fr022180317j03038%2F Abstract  The effect of exposure to amoxicillin on tooth development remains to be elucidated. The purpose of this study was to investigate the effect of amoxicillin on rat incisor odontogenesis. Male Wistar rats weighing approximately 100 g were given a single intraperitoneal injection of 3.0 g/kg body weight amoxicillin. One week after injection, the rats were fixed, and the lower incisors were demineralized and prepared into paraffin sections for light microscopy (LM) and immunohistochemistry. Undemineralized samples were embedded in resin and ground for processing for contact microradiography (CMR) and scanning electron microscopy (SEM). Serum calcium, phosphate, and magnesium concentrations were measured. At 1 week after amoxicillin administration, LM, C... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4993659 Wed, 29 Jun 2011 10:49:53 +0100 4993659 http://www.medworm.com/index.php?rid=4993660&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F944h60264xt264g4%2F Abstract  The present study validated the accuracy of data from a self-reported questionnaire on smoking behaviour with the use of exhaled carbon monoxide (CO) level measurements in two groups of patients. Group 1 included patients referred to an oral medicine unit, whereas group 2 was recruited from the daily outpatient service. All patients filled in a standardized questionnaire regarding their current and former smoking habits. Additionally, exhaled CO levels were measured using a monitor. A total of 121 patients were included in group 1, and 116 patients were included in group 2. The mean value of exhaled CO was 7.6 ppm in the first group and 9.2 ppm in the second group. The mean CO values did not statistically significantly differ between the two groups. The ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4993660 Wed, 29 Jun 2011 10:49:52 +0100 4993660 http://www.medworm.com/index.php?rid=4970347&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fmv437lw8vx250237%2F Abstract  The main objective of this study was to identify the risk factors for the incidence of visible caries experience in a cohort of preschool children living in Flanders. Data were collected from 1,057 children; validated questionnaires on oral health-related behaviour were completed by parents at birth (2003–2004), at age 3 (2007) and 5 years (2009). At ages 3 and 5, the children were examined by trained dentists. Logistic regression analyses were performed with the following as outcome variables: visible caries experience at age 3 and increment in visible caries experience between ages 3 and 5. At ages 3 and 5, enamel and/or dentinal caries experience was observed in 22% and 41% of the cohort, respectively. The multivariable logistic regression analyses revea... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4970347 Tue, 21 Jun 2011 20:54:55 +0100 4970347 http://www.medworm.com/index.php?rid=4946574&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F864j82357746w1q2%2F Abstract  A prospective, randomized, controlled, split-mouth trial was performed to evaluate the cementation modes for metal–ceramic crowns. A total of 40 fully veneered metal–ceramic crowns were delivered in the posterior jaw segments of 20 patients using either a self-adhesive resin cement (RelyX Unicem Aplicap, 3M ESPE; n = 20) or a zinc oxide phosphate cement (Hoffmann's Cement, Hoffmann; n = 20). Thirteen parameters related to the abutment teeth and their periodontal status were evaluated. A visual analog scale was used to assess the sensitivity of the abutment teeth by patient-based outcomes. Data were statistically analyzed by a single-classification ANOVA (α = 0.05) and logistic regression analysis. The results presented were obtained after a mean obs... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4946574 Fri, 17 Jun 2011 10:54:56 +0100 4946574 http://www.medworm.com/index.php?rid=4946576&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ff344r73h539210r5%2F Abstract  Myocardial infarction (MI) is the main cause of death all over the world. Biomarkers of cardiac necrosis are of great importance in the diagnosis of MI. The aim of this study was to determine probable changes of creatine kinase MB isoform (CK-MB) levels in saliva of patients with acute MI. A case–control study was carried out on 30 patients with acute MI who were hospitalized in Kamkar-Arabnia Hospital of Qom City and 30 healthy control subjects. CK-MB levels were measured by immunoinhibition assay in saliva and serum of patients and healthy individuals. Statistical analysis of the Student's t test and Pearson correlation coefficient was used. CK-MB levels showed a significant elevation in saliva and serum of patients with acute MI compared to healthy controls. F... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4946576 Fri, 17 Jun 2011 10:54:54 +0100 4946576 http://www.medworm.com/index.php?rid=4946575&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fp2235tx8g4632567%2F Abstract  Since the adhesion of bacteria to the tooth surface is a prerequisite for dental plaque and subsequent caries development, a promising caries preventive strategy could be to block the lectin–glycan-mediated adherence of cariogenic bacteria. The aim of the study was to evaluate potential differences in glycan-binding specificities of two Streptococcus mutans strains (DSM 20523 and DSM 6178) and Streptococcus sobrinus (DSM 20381). A competitive enzyme-linked lectin-binding assay was used to identify the binding specificities of isolated bacterial surface lectins. Blotting of the microbial proteins on neoglycoprotein-coated PVP membranes enabled a qualitative protein analysis of all specific bacterial lectins. Different glycan-binding sites could be identified for th... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4946575 Fri, 17 Jun 2011 10:54:54 +0100 4946575 http://www.medworm.com/index.php?rid=4946577&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fp453478214623328%2F Abstract  The aim of this study was to assess the push-out bond strengths of self-adhesive resin cements to epoxy resin-based fiber posts after challenging by thermocycling. Thirty-six single-rooted premolars were endodontically treated, and the post-spaces were drilled to receive RelyX Fiber posts #1. Three self-adhesive resin cements (RelyX Unicem, G-Cem, and Breeze) were used for luting fiber posts. The bonded specimens were either stored for 1 month in a moist field (37°C) or submitted to thermocycling (5,000 times) prior to push-out test. The maximum force required to dislodge the post via an apical–coronal direction was recorded (megapascal). The data were statistically analyzed with two-way ANOVA and Tukey tests (p < 0.05). The factors “luting cement�... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4946577 Tue, 14 Jun 2011 05:55:18 +0100 4946577 http://www.medworm.com/index.php?rid=4936983&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F0675wj8286pv10g1%2F Abstract  This prospective clinical trial aimed at evaluating the clinical performance of three-unit posterior zirconia fixed dental prostheses (FDPs) after 5 years of clinical function. Thirty-seven patients received 48 three-unit zirconia-based FDPs. The restorations replaced either a premolar or a molar. Specific inclusion criteria were needed. Tooth preparation was standardized. Computer-aided design/computer-assisted manufacturing frameworks with a 9-mm2 cross section of the connector and a 0.6-mm minimum thickness of the retainer were made. The restorations were luted with resin cement. The patients were recalled after 1, 6, 12, 24, 36, 48, and 60 months. The survival and success of the ceramics and zirconia were evaluated. The technical and aesthetic outcome... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4936983 Sat, 11 Jun 2011 06:35:17 +0100 4936983 http://www.medworm.com/index.php?rid=4913721&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fa68542u3u6vvm218%2F Abstract  A close spatial correlation has been described between the roughness of intraoral materials and the rate of bacterial colonisation. The aim of the present study in man was to conduct a comparative immunohistochemical evaluation of the inflammatory infiltrate, microvessel density, the nitric oxide synthases 1 and 3 and the vascular endothelial growth factor expression, the proliferative activity, and the B and T lymphocyte and histiocyte positivity in the peri-implant soft tissues around machined and acid-etched titanium healing caps. Ten patients participated in this study. The patients were enrolled consecutively. All patients received dental implants left to heal in a non-submerged mode. Healing caps were inserted in all implants. Half of the implants were suppl... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4913721 Tue, 07 Jun 2011 09:39:33 +0100 4913721 http://www.medworm.com/index.php?rid=4913722&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F1xp8r3hu4g646k10%2F Abstract  The aim of this study was to evaluate the clinical long-term performance of a visible light-cured resin (VLCR) denture base material and to compare it to a well-established polymethylmethacrylate (PMMA)-based denture acrylic in a randomized split-mouth clinical long-term study. One hundred removable partial dentures in 90 patients, with at least two saddles each, were investigated. One saddle was made of VLCR, while the other was made of PMMA at random. Plaque adhesion, tissue reaction, and technical parameters of the dentures were assessed 6, 12, and 18 months after treatment. Statistical analysis was performed using the Wilcoxon rank-sum test. Though VLCR showed higher plaque adhesion than PMMA after 6, 12, and 18 months (p < 0.001), there were n... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4913722 Tue, 07 Jun 2011 09:39:32 +0100 4913722 http://www.medworm.com/index.php?rid=4913723&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F53wxx56861235211%2F Abstract  Dental restorations are increasingly manufactured by CAD/CAM systems. Currently, there are two alternatives for digitizing dental implants: direct intra-oral data capturing or indirect from a master cast, both with transfer caps (scanbodies). The aim of this study was the evaluation of the fit of the scanbodies and their ability of reposition. At the site of the first molars and canines, implants were placed bilaterally in a polymer lower arch model (original model), and an impression was taken for fabricating a stone cast (stone model). Ten white-light scans were obtained from the original and the stone model with the scanbodies in place. The scanbodies were retrieved after each scan and re-attached to the same implant or lab analogue. The first scan of the serie... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4913723 Mon, 06 Jun 2011 14:55:14 +0100 4913723 http://www.medworm.com/index.php?rid=4913724&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fu831337674hv1674%2F Abstract  We determined the effects of soluble or coated nanocrystalline hydroxyapatite paste (nano-HA) and enamel matrix derivative (EMD) on proliferation, adhesion, and migration of periodontal ligament fibroblasts (PDLs). Cultured PDLs were stimulated with nano-HA paste or EMD in a soluble form or were coated to the surface of cell culture dishes. Proliferation of PDLs on coated nano-HA and EMD was quantified by various methods including bromodeoxyuridine (BrdU) incorporation and Western blot. Cell migration was investigated in a modified Boyden chamber. The surface integrin profile of PDLs was determined using an integrin-specific ELISA, and integrin-specific signaling was measured by immunoblotting of phosphorylated focal adhesion kinase (FAK). Coated nano-HA stimulate... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4913724 Mon, 06 Jun 2011 14:55:12 +0100 4913724 http://www.medworm.com/index.php?rid=4913726&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fb6xh123800r4t0r3%2F This study was conducted to investigate the relationship among radiographic features observed on panoramic radiographs of sickle cell disease patients and analyze their relationship with history of systemic severity of the disease. Panoramic radiographs of 71 subjects with sickle cell disease were evaluated for the presence of the following radiographic bony alterations: radiopaque areas, increased spacing of bony trabeculae, horizontal arrangement of bony trabeculae and corticalization of mandibular canal. History of clinical systemic severity was assessed through direct questioning about the frequency of vaso-occlusive crisis, history of stroke, clinical jaundice, femur head necrosis, and leg ulceration. Chi-square or Fisher’s exact test were applied in order to analyze possible ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4913726 Mon, 06 Jun 2011 14:55:11 +0100 4913726 http://www.medworm.com/index.php?rid=4913725&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fb8p1558x04v44871%2F Abstract  The purpose of this study was to compare the push-out strength of glass fiber posts dependent on the resin cement. One hundred human teeth were divided into five groups (n = 20). Two glass fiber post systems (DT Light SL (DTSL) and RelyX Fiber Post (RF)) were used. DTSL posts were cemented with one “etch & rinse” system (ER) or one of three self-adhesive resin cements (SA). The RF posts were cemented with RelyX Unicem. Afterwards, half of the specimens were thermocycled (TC; 5°C/55°C, 5,000 cycles). All specimens were cut into disks (thickness, 2 mm). The push-out test was performed (crosshead speed, 1 mm/min), fracture types were determined (×25 and ×40 magnification), and statistical analysis was performed (one-way analysis of variance ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4913725 Mon, 06 Jun 2011 14:55:11 +0100 4913725 http://www.medworm.com/index.php?rid=4904250&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fr06r202t2vt8m434%2F This study aims to investigate salivary flow and biochemical constituents of menopausal-age women with the hypothesis that women using hormone therapy (HT) might present better saliva values than non-users. Two hundred HT users and 200 non-users were selected at random from a cohort study of 3,173 peri- and postmenopausal women and invited to a 2-year clinical follow-up study. Clinical examination with saliva sampling was made at baseline and 2 years later. Salivary total protein, albumin, and immunoglobulin (Ig) concentrations were analyzed. Final material included 106 consistent HT users and 55 non-users. Backward logistic regression analysis was made to determine the risk factors for higher or lower than medium salivary protein values. No difference was seen in salivary flow ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4904250 Fri, 03 Jun 2011 05:57:49 +0100 4904250 http://www.medworm.com/index.php?rid=4904251&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fph50246256157034%2F This study compared the staining potential of two experimental amine fluoride/stannous fluoride mouth rinses (A and B), a phenolic/essential oil rinse (C) and a negative control, water, rinse (D). The study was a single centre, randomized, single-blind, four treatment crossover study design among healthy participants. Prior to each study period, participants received a dental prophylaxis. On the Monday of each period, subjects suspended oral hygiene, and under supervision, rinsed with the allocated mouth rinse immediately followed by a warm black tea solution at hourly intervals eight times a day for 4 days. On Friday, the area and intensity of staining on the teeth, the primary outcome measure and dorsum of tongue were assessed. This regimen was repeated for all the three subse... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4904251 Wed, 25 May 2011 16:01:27 +0100 4904251 http://www.medworm.com/index.php?rid=4904252&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fk044854204p73823%2F Abstract  The purpose of this study is to compare success rates of dual-viscosity impressions for two types of mixing techniques of the polyether elastomeric impression material. Additionally, influencing parameters on the success rates should be evaluated. The expectation was that there would be no difference between the success rates for the two mixing techniques. Two centres enrolled 290 subjects (727 teeth) into the trial. Patients were randomized for the two types of mixing techniques. One step, dual-viscosity impressions were made with either statically mixed Impregum Soft tray material (SAM) or dynamically mixed Impregum Penta H DuoSoft (DMM). Low viscosity Impregum Garant L DuoSoft was used for both groups. Gingival displacement involved the use of two braided cords... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4904252 Tue, 24 May 2011 16:04:47 +0100 4904252 http://www.medworm.com/index.php?rid=4904253&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F41v71217500761gv%2F Abstract  Aim of this in vitro study was to investigate the effect of artificial ageing and differential abutment support on the load-bearing capacity of zirconia posterior four-unit fixed dental prostheses (FDPs). Thirty-six FDPs were fabricated using CAD/CAM technology and divided into three groups. Specimens in the first group were cemented onto tooth analogues with simulated periodontal resilience, in the second group onto a dental implant and a tooth analogue, but in the third group only onto implants. Half of the samples in each group underwent artificial ageing. Afterwards, all FDPs were loaded until bulk fracture in a universal testing machine. Load-displacement curves and forces at fracture were recorded and results were statistically analysed using ANOVA. Load-bea... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4904253 Mon, 23 May 2011 17:04:29 +0100 4904253 http://www.medworm.com/index.php?rid=4904254&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fu9632w2mjn15l5p0%2F Abstract  The antimicrobial effect of taurolidine was tested against periodontopathic species in comparison to chlorhexidine digluconate in the presence or absence of serum. Minimal inhibitory concentrations (MIC), microbiocidal concentrations (MBC), as well as killing were determined against 32 different microbial strains including 3 Porphyromonas gingivalis, 3 Aggregatibacter actinomycetemcomitans, and 15 potentially superinfecting species with and without 25% v/v human serum. The MIC50 of taurolidine against the tested microbial strains was 0.025% and the MIC90 0.05%. The respective values for the MBCs were 0.05% and 0.1%. Addition of 25% serum (heat-inactivated) did not change the MIC and MBC values of taurolidine. In contrast, MICs and MBCs of chlorhexidine (CHX) increase... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4904254 Mon, 23 May 2011 17:04:26 +0100 4904254 http://www.medworm.com/index.php?rid=4854375&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fm76q6715m4k7367x%2F Abstract  A 2-year randomized, controlled prospective study evaluated the clinical effectiveness of a one-step self-etch adhesive and a “gold-standard” three-step etch-and-rinse adhesive in non-carious Class-V lesions. The null hypothesis tested was that the one-step self-etch adhesive does perform clinically equally well as the three-step etch-and-rinse adhesive. A total of 161 lesions in 26 patients were restored with Clearfil AP-X (Kuraray). The restorations were bonded either with the “all-in-one” adhesive Clearfil S3 Bond (Kuraray) or with the three-step etch-and-rinse adhesive Optibond FL (Kerr). The restorations were evaluated at baseline and after 6 months, 1 and 2 years, regarding their retention, marginal adapation, marginal discoloration, caries... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4854375 Fri, 20 May 2011 16:11:39 +0100 4854375 http://www.medworm.com/index.php?rid=4854376&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fb0354825070vp47q%2F Abstract  There are numerous scientific articles of studies on the prevalence of disorders with non-standardised examination and diagnostic protocols. Because their quality is heterogeneous, a new instrument has been developed for the assessment of such studies. The new instrument is based mainly on statistical criteria. The points assigned for each of the main criteria according to the information gained from each paper are summed up to form a Total Quality Score (TQS). The interrater reliability of the instrument was tested by employing Kappa and Interrater Correlation Coefficient (ICC) statistics. The latter was assessed on the results of three independent investigators. The new quality instrument appeared to be easy to use, and the instructions were comprehensible. The ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4854376 Wed, 18 May 2011 18:20:57 +0100 4854376 http://www.medworm.com/index.php?rid=4842873&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fl36t606v6l152j22%2F In this study, we investigated the capacity of Straumann® Bone Ceramic coated with Straumann® Emdogain, a clinical preparation of enamel matrix protein (EMP), to aid in hard tissue formation by post-natal mesenchymal stromal cells (MSCs) including bone marrow stromal cells (BMSCs) and periodontal ligament fibroblasts (PDLFs). MSCs were isolated and ex vivo-expanded from human bone marrow and periodontal ligament and, in culture, allowed to attach to Bone Ceramic in the presence or absence of Emdogain. Gene expression of bone-related proteins was investigated by real time RT-PCR for 72 h, and ectopic bone formation was assessed histologically in subcutaneous implants of Bone Ceramic containing MSCs with or without Emdogain in NOD/SCID mice. Alkaline phosphatase activity was als... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4842873 Mon, 16 May 2011 08:43:04 +0100 4842873 http://www.medworm.com/index.php?rid=4842874&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fu30u6117x2r057j7%2F In conclusion, the presence of E. faecalis in root canals may negatively affect periapical new bone formation, and thus, the healing of periapical lesions. Content Type Journal ArticlePages 1-9DOI 10.1007/s00784-011-0563-6Authors Lamprini Karygianni, Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Hugstetterstrasse 55, Freiburg, 79106 GermanyMargit Wiedmann-Al-Ahmad, Department of Oral and Maxillofacial Surgery, Albert-Ludwigs-University, Freiburg, GermanyGünter Finkenzeller, Department of Plastic and Hand Surgery, Albert-Ludwigs-University, Freiburg, GermanySebastian Sauerbier, Department of Oral and Maxillofacial Surgery, Albert-Ludwigs-University, Freiburg, GermanyMartin Wolkewitz, Institute of Medical Biometry and Medical Informatics, Albert-Lu... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4842874 Mon, 16 May 2011 08:43:03 +0100 4842874 http://www.medworm.com/index.php?rid=4822041&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F662u3027h2531772%2F This study measured the accuracy and precision of four commercial dental radiometers. The intra-brand accuracy was also determined. The light outputs from 14 different curing lights were measured three times using four brands of dental radiometers and the results were compared to two laboratory-grade power meters that were used as the “gold standard”. To ensure proper representation, three examples of each brand of dental radiometer were used. Data collected was analyzed using ANOVA, with 95% confidence intervals, comparing the laboratory-grade meters to the dental radiometers. Bioequivalence was established where the confidence interval for the irradiance values was within ±20% of the “gold standard” reading. Forest plots were used to highlight bioequivalence values. The tw... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4822041 Wed, 11 May 2011 15:48:17 +0100 4822041 http://www.medworm.com/index.php?rid=4822042&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fk825733782832r21%2F This study evaluated the association between body mass index (BMI) and periodontal condition in a population of Brazilian women. A hospital convenience sample of 594 eligible women was recruited from a women's health reference center of Belo Horizonte, Brazil. Four groups were formed considering BMI levels: BMI normal group (n = 352), overweight (n = 54), obesity level I (n = 48), obesity level II (n = 56), and obesity level III (n = 74). Full-mouth periodontal examination was performed and biological, demographic, and behavioral risk variables were evaluated. Obese and overweight women showed statistically significant differences in bleeding on probing, probing depth and clinical attachment level ≥4 mm, and frequency of periodontitis (p < 0.05) compar... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4822042 Tue, 10 May 2011 06:04:08 +0100 4822042 http://www.medworm.com/index.php?rid=4806018&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fd851h53192q62g8x%2F Abstract  The aim of the present study was to comparatively evaluate DNA damage and cellular death in cells exposed to various commercially available mouthrinses: Listerine® Cepacol®, Plax alcohol free®, Periogard®, and Plax Whitening®. A total of 75 volunteers were included in the search distributed into five groups containing 15 people each for in vivo study. Exfoliated buccal mucosa cells were collected immediately before mouthrinse exposure and after 2 weeks. Furthermore, blood samples were obtained from three healthy donors for in vitro study. The micronucleus test was used to evaluate mutagenicity and cytotoxicity in vivo. The single-cell gel (comet) assay was used to determine DNA damage in vitro. After 2 weeks exposure, Periogard® showed 1.8% of micr... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4806018 Thu, 05 May 2011 16:36:13 +0100 4806018 http://www.medworm.com/index.php?rid=4790359&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fg1r731m87777jt43%2F Abstract  The long-term success of osseointegrated oral implants is endangered by inflammation of peri-implant hard and soft tissues caused by bacterial biofilms that may have been initiated by bacterial transmission from the adjacent dentition. The present study aimed to compare the bacterial communities at inflamed implant and tooth sites by broad-range PCR techniques to evaluate the etiological processes of peri-implant and periodontal diseases and potential future therapeutic strategies. Eighteen samples of peri-implant and periodontal microflora were collected from nine partially edentulous patients with implant-retained crowns or bridges revealing clinical signs of gingivitis or mucositis. The clinical parameters plaque index (PI), probing depth (PD), and bleeding on ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4790359 Tue, 03 May 2011 05:56:32 +0100 4790359 http://www.medworm.com/index.php?rid=4782598&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fa270638205803775%2F Abstract  Since in a previous study we encountered a subject with an unusual split MG2 banding pattern, the aim of this study was to investigate the molecular basis of this observation. Submandibular/sublingual secretion was collected under resting and stimulated conditions and examined on Western blots probed with anti-MG2 antibodies or on gels stained with periodic acid-Schiff reagent. Genomic DNA was isolated and the N-, tandem repeat (TR), and C-terminal regions of MUC7 were amplified by PCR since MG2 is known to display a genetic polymorphism. Although the typical appearance of MG2 on blots and gels is a single 180 kDa band, salivary secretions from the subject exhibited doublet immunoreactive bands of approximately 180 and 125 kDa. Additionally, under restin... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4782598 Mon, 02 May 2011 15:56:30 +0100 4782598 http://www.medworm.com/index.php?rid=4782599&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F01h0425028718259%2F The objective of this study was to assess variations in the occurrence of temporomandibular disorders (TMDs) and the risk of developing pain and function impairment of the temporomandibular complex in obstructive sleep apnea syndrome (OSAS) patients treated with either an oral appliance (mandibular advancement device) or continuous positive airway pressure (CPAP) in a 2-year follow-up study. In addition, we assessed the relationship between the mean mandibular protrusion and the frequency of wearing the appliance during follow-up with the occurrence of pain and function impairment of the temporomandibular complex. Fifty-one patients were randomized to oral appliance therapy and 52 patients to CPAP therapy. TMDs (diagnosed according to the Axis I Research Diagnostic Criteria for TMD),... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4782599 Mon, 02 May 2011 15:56:28 +0100 4782599 http://www.medworm.com/index.php?rid=4771935&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fx836tq4m1230xp48%2F Abstract  The object of this study was to evaluate the relationship between changes in the alveolar bone density around the teeth and the direction of tooth movement by using cone-beam computed tomography (CBCT). CBCT was used to measure the bone densities around six maxilla anterior teeth before and after 7 months of orthodontic treatment in eight patients. Each root was divided into three levels (cervical, intermediate, and apical) to determine whether the bone density change varied with the tooth level. Moreover, each level was divided into four regions (palatal, distal, mesial, and buccal sides). Three-dimensional computer models of the maxilla before and after orthodontic treatment were created to detect the direction of tooth movement. The percentage for all 144 ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4771935 Mon, 25 Apr 2011 16:38:49 +0100 4771935 http://www.medworm.com/index.php?rid=4771936&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fw06u142558445581%2F Abstract  The availability of cone beam computed tomography (CBCT) and the numbers of CBCT scans rise constantly, increasing the radiation burden to the patient. A growing discussion is noticeable if a CBCT scan prior to the surgical removal of wisdom teeth may be indicated. We aimed to confirm non-inferiority with respect to damage of the inferior alveolar nerve in patients diagnosed by panoramic radiography compared to CBCT in a prospective randomized controlled multicentre trial. Sample size (number of required third molar removals) was calculated for the study and control groups as 183,474 comparing temporary and 649,036 comparing permanent neurosensory disturbances of the inferior alveolar nerve. Modifying parameter values resulted in sample sizes ranging from 39,584 t... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4771936 Mon, 25 Apr 2011 16:38:48 +0100 4771936 http://www.medworm.com/index.php?rid=4710209&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ff60176360n491178%2F Abstract  The aim of this study was to assess the possibility to arrest occlusal caries lesions in adults by sealant as well as to assess the presence of radiographic progression, arrest, and regression of the sealed lesions. Seventy-two occlusal caries lesions in 52 adult patients referred to restorative treatment by senior lecturers at School of Dentistry, Copenhagen, Denmark were included. In case the patient had more than one occlusal caries lesion, randomization between sealing and restoration was made; otherwise, the lesion was sealed. In total, 60 resin sealants and 12 composite restorations were made. Follow-up period was 25–38 months (mean = 33 months). Data were analyzed using non-parametric statistics including kappa statistics. After 2–3 y... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4710209 Fri, 08 Apr 2011 16:58:22 +0100 4710209 http://www.medworm.com/index.php?rid=4686515&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F2k01423646431602%2F The objective of this review was to provide an oversight on the current state of the art in growth factor-aided tissue engineering with regard to reconstruction of the alveolar cleft in CLAP. Medline, Embase and Central databases were searched for articles on bone morphogenetic protein 2 (BMP-2), bone morphogenetic protein 7, transforming growth factor beta, platelet-derived growth factor, insulin-like growth factor, fibroblast growth factor, vascular endothelial growth factor and platelet-rich plasma for the reconstruction of the alveolar cleft in CLAP. Two-hundred ninety-one unique search results were found. Three articles met our selection criteria. These three selected articles compared BMP-2-aided bone tissue engineering with iliac crest bone grafting by clinical and radiographi... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4686515 Tue, 05 Apr 2011 10:03:14 +0100 4686515 http://www.medworm.com/index.php?rid=4671677&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F524q2314773422h3%2F Abstract  This paper aims to study oral symptoms (burning mouth sensation, xerostomia, dysphagia, and dysgeusia) and background characteristics among chronic kidney disease (CKD) patients. The hypothesis was that patients experience oral discomfort and show interest towards dental care differently depending on the origin of their kidney disease. One hundred thirty-eight CKD patients at predialysis stage (94 men, 44 women, mean age 54 years) at the Helsinki University Central Hospital participated in the study. The patients were divided into a diabetic nephropathy group and a group of patients with other kidney diseases. The patients had a clinical oral examination and filled in a structured questionnaire. The data were analyzed and compared between the groups (SPSS for... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4671677 Thu, 31 Mar 2011 16:51:36 +0100 4671677 http://www.medworm.com/index.php?rid=4665005&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ffw266n76q0045p2w%2F Abstract  The aim of this study was to estimate the prevalence of transmigrant canines in a sample of panoramic radiographs of a random Greek population, to classify them and evaluate clinically and radiographically all the implications for adjacent teeth. Panoramic radiographs of 3,586 patients retrieved from eight private practices between 1998 and 2009, were examined. Panoramic radiographs with extracted canines were not included in this study. An impacted canine was considered to be transmigrant when at least part of its length had crossed the midline. Six radiographs exhibited transmigrant canines (0.17% of the total sample of panoramic radiographs), of which four were mandibular and two maxillary. Canine transmigration is a rare phenomenon in Greek population. The imp... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4665005 Tue, 29 Mar 2011 17:30:26 +0100 4665005 http://www.medworm.com/index.php?rid=4665004&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ff6r052405r76078t%2F This study evaluated the effect of zinc methacrylate (ZM) on the inhibition of matrix metalloproteinase 2 (MMP-2) and the ultimate tensile strength (UTS) of an experimental polymer. Enzymes secreted from mouse gingival tissues were analyzed by gelatin zymography in buffers containing 5 mM CaCl2 (Tris–CaCl2) in 50 mM Tris–HCl buffer with various concentrations of ZM (0.5, 1, 2, 4, 8, and 16 mM). The matrix metalloproteinases present in the conditioned media were characterized by immunoprecipitation. The polymer UTS evaluation was performed in eight groups with various concentrations of ZM (0, 0.5, 1, 2.5, 5, 10, 20, and 30 wt.%), in a mechanical testing machine. MMP-2 (62 kDa) was detected in the zymographic assays and inhibited by ZM in all tested concentr... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4665004 Tue, 29 Mar 2011 17:30:26 +0100 4665004 http://www.medworm.com/index.php?rid=4665003&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F77524k11w752x573%2F Abstract  High bond strengths are required in order to avoid bracket failure during treatment while brackets should be removable. In addition, chair time should be kept at a minimum. Therefore, the aim of this study was to investigate any differences in bracket's bond strength to enamel by reducing the polymerization time and the steps of bonding procedure. Five hundred teeth were randomly allocated into 20 groups. The groups were established considering the investigated curing units (quartz–tungsten–halogen (QTH) and light-emitting diode (LED), each with two different polymerization times) and the used bonding agents (Clearfil SE Bond, Transbond Plus, Ideal1, iBond, and Transbond XT Primer following acid etching). The brackets were debonded using a shear-peel load and ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4665003 Tue, 29 Mar 2011 17:30:26 +0100 4665003 http://www.medworm.com/index.php?rid=4665006&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fn161g16tx8348u55%2F The objective of the study was to evaluate features of anatomical variations related to mandibular canal (MC), such as bifid canals, anterior loop of mental nerve, and corticalization of MC. Additionally, bone trabeculation at the submandibular gland fossa region (SGF) was assessed and related to visibility of MC. Cone beam computed tomography exams from 100 patients (200 hemimandibles) were analyzed and the following parameters were registered: diameter and corticalization of MC; trabeculation in SGF region; presence of bifid MC, position of bifurcations, diameter, and direction of bifid canals; and measurement of anterior loops by two methods. Corticalization of the MC was observed in 59% of hemimandibles. In 23%, MC could be identified despite absence of corticalization. Diameter ... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4665006 Tue, 29 Mar 2011 17:30:24 +0100 4665006 http://www.medworm.com/index.php?rid=4665007&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F9228022505388844%2F Abstract  Periodontal ligament (PDL) cells have been associated with the regulation of periodontal repair processes by the differential expression of osteoprotegerin and RANKL in response to intermittent parathyroid hormone (PTH) resulting in a modified activity of bone-resorbing osteoclasts. Here, we examined the intracellular signaling pathways that PDL cells use to mediate the PTH(1–34) effect on osteoprotegerin production and hypothesized that those would be dependent on the cellular maturation stage. Two stages of confluence served as a model for cellular maturation of 5th passage human PDL cells from six donors. Intermittent PTH(1–34) (10−12 M) and PTH(1–31), the latter lacking the protein kinase C (PKC) activating domain, induced a significant decrease of... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4665007 Tue, 29 Mar 2011 06:02:57 +0100 4665007 http://www.medworm.com/index.php?rid=4665008&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F067qg70586782183%2F This study gives strong supporting evidence for the safety and effectiveness of inhalation sedation using 50% N2O/O2 in general dental practice for healthy patients. Content Type Journal ArticlePages 1-10DOI 10.1007/s00784-011-0550-yAuthors Martine Hennequin, Clermont Université, Université d’Auvergne, EA3847, Faculté de Chirurgie Dentaire, 11 bvd Charles d Gaulle, 63000 Clermont-Ferrand, FranceValérie Collado, Clermont Université, Université d’Auvergne, EA3847, Faculté de Chirurgie Dentaire, 11 bvd Charles d Gaulle, 63000 Clermont-Ferrand, FranceDenise Faulks, Clermont Université, Université d’Auvergne, EA3847, Faculté de Chirurgie Dentaire, 11 bvd Charles d Gaulle, 63000 Clermont-Ferrand, FranceSerge Koscielny, Department of Biostatistics, Institut Gustave Roussy,... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4665008 Tue, 29 Mar 2011 06:02:54 +0100 4665008 http://www.medworm.com/index.php?rid=4665009&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fp785413266012472%2F This study’s aim was to clarify the influence of soft tissue management on the development of periimplant infection. Four weeks after removal of all maxillary premolars in 12 mini-pigs, four BEGO Semados RI implants were inserted in each maxillary quadrant. Employing a split-mouth design, one quadrant was randomized to flapless insertion while the contralateral side was chosen for flap surgery. Following 1, 2, 4 and 12 weeks of transmucosal implant, healing biopsies were retrieved from the periimplant soft tissue and subjected to further analysis. Histomorphometrically, a significant reduction of transmigration of polymorphonuclear neutrophils (week 1, p = 0.007; week 2, p = 0.021; week 4, p = 0.023; week 12, p = 0.013) as well as the density... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4665009 Tue, 29 Mar 2011 06:02:53 +0100 4665009 http://www.medworm.com/index.php?rid=4665011&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fx1302gmn054777v7%2F Abstract  When jaw gape in unilateral biting or chewing narrows, the working/balancing side activity ratio (W/B ratio) of masseter muscles increases due to decrease of balancing side (BS) activity. This was interpreted as a neuromuscular strategy to delimit the impact of BS contacts during chewing. To test this hypothesis, we studied whether W/B ratios are associated with incidence of BS tooth contacts. In 40 healthy subjects, bilateral masseter activity was recorded during unilateral biting with different jaw gapes and during various chewing tasks. Biting was performed with absence and with deliberate avoidance or generation of BS tooth contacts. Subjects were divided into three groups according to jaw gapes of 2, 1, and 0.5 mm for which BS contact was first noticed i... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4665011 Tue, 29 Mar 2011 06:02:52 +0100 4665011 http://www.medworm.com/index.php?rid=4665010&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ff9u0vru53h485q00%2F Abstract  The purpose of this study is to determine the frequency of EBV and CMV DNA detection in saliva of HIV infected and non-HIV individuals and their siblings. The study group comprised 240 individuals. Group 1 comprised of 40 HIV-infected patients, group 2 40 non-HIV individuals, group 3 two siblings for each patient from group 1 (n = 80), and group 4 two siblings for each individual from group 2 (n = 80). Non-stimulated whole saliva was collected, DNA was extracted, and amplification was performed using a nested PCR protocol. EBV and CMV DNA was detected in 7/40 (17.5%) and 5/40 (12.5%) individuals from group 1, 8/40 (20%) and 3/40 (7.5%) from group 2, 11/80 (13.8%) and 2/80 (2.5%) from group 3, and 8/80 (10%) and 1/80 (1.3%) from group 4, respectively. Five (7... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4665010 Tue, 29 Mar 2011 06:02:52 +0100 4665010 http://www.medworm.com/index.php?rid=4644585&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F3285mm7324766575%2F Abstract  No studies had investigated circadian and circannual rhythms of bone biomarkers in whole saliva. We evaluated the salivary daily and seasonal rhythm of carboxy-terminal telopeptide of type I collagen (CTX) and bone alkaline phosphatase (b-ALP). Forty clinical and oral healthy ambulatory pre- and postmenopausal women from two southern Argentine cities: Comodoro Rivadavia (latitude 45º S) and Ushuaia (latitude 54º S) were included in the study. CTX levels were evaluated in serum, urine, and saliva, and b-ALP levels were measured in serum and saliva. In both groups of women, salivary CTX showed a maximum percentage of change early in the morning (80%) and a minimum in the late afternoon (45%), similarly to the pattern observed in urinary samples. No daily rhythm wa... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4644585 Wed, 23 Mar 2011 16:56:06 +0100 4644585 http://www.medworm.com/index.php?rid=4644584&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F377h1qn26k8057h1%2F Abstract  Craniofacial morphogenesis is determined by multistep processes involving signalling molecules and transcription factors, which are organised into highly coordinated pathways. Derailment from this intricate network can lead to congenital malformations. Cells migrate from neural crests to populate different structures, such as branchial arches, involved in embryonal orofacial development. The EDN1 pathway is involved in branchial arch development. Gene knockout and knockdown experiments on EDN1 or its downstream effector dHAND resulted in mice that were characterised by craniofacial defects and cleft palate. Our aim was to evaluate whether the transcription factor HAND2 could be implicated in non-syndromic cleft lip with or without cleft palate (CL/P) aetiology. A s... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4644584 Wed, 23 Mar 2011 16:56:06 +0100 4644584 http://www.medworm.com/index.php?rid=4637027&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fx21t338804553417%2F Abstract  Among the materials used for luting indirect restorations, growing interest has been directed towards the use of self-adhesive resin cements. The aim of this prospective randomized controlled clinical trial was to evaluate the clinical performance of the self-adhesive resin cement RelyX Unicem (RXU) for luting partial ceramic crowns (PCCs). In addition, the influence of selective enamel etching prior to luting (RXU+E) was assessed. Two-year results are reported. Thirty-four patients (68 PCCs) had originally received the intended treatment at baseline (BL). Twenty-nine patients (14 male, 15 female) with a total of 58 PCCs participated in the 2-year recall. In each patient, one PCC had been placed with RXU, one PCC with RXU+E. Restorations were evaluated at BL and 2... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4637027 Tue, 22 Mar 2011 18:24:59 +0100 4637027 http://www.medworm.com/index.php?rid=4616635&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fm461553446057472%2F Abstract  The aim of this study was to evaluate changes in clinical parameters and levels of inflammatory biomarkers in plasma in periodontal patients with poorly controlled type 2 diabetes mellitus (T2DM) after non-surgical periodontal therapy. Twenty-eight poorly controlled T2DM patients were randomly assigned to treatment with scaling and root planning (SRP) and SRP + subgingival minocycline administration. Clinical parameters, including the probing depth (PD), bleeding on probing (BOP), plaque score (PS), clinical attachment level (CAL), and plasma interleukin (IL)-6, soluble receptor of advanced glycation end products (sRAGE), chronic reactive protein (CRP), and hemoglobin A1c (HbA1c) were measured before and after a 6-month treatment period. Significant changes in PD,... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4616635 Thu, 17 Mar 2011 18:34:07 +0100 4616635 http://www.medworm.com/index.php?rid=4578487&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fln33381147g17737%2F The objective of this study was to determine, using digital panoramic radiographs, whether the bone level at the alveolar crest is related to the mandibular bone density and/or to vitamin D receptor (VDR) gene polymorphisms. We analyzed 319 digital panoramic radiographs from the same number of patients. Alveolar bone level was expressed as percentage of root length. The mandibular cortical width index was calculated as a measure of mandibular bone density, and, in 72 randomly selected cases, the haplotype of the VDR gene (BsmL) was determined by polymerase chain reaction. Alveolar bone level was not related to the mandibular cortical width index (p = 0.568) or VDR gene expression (p = 0.575). Bone loss was greater in smokers than in non-smokers (p = 0.036), and the mandibu... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4578487 Thu, 10 Mar 2011 17:12:46 +0100 4578487 http://www.medworm.com/index.php?rid=4578488&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Ft69h02866116764n%2F Abstract  Many morphometric studies show a sexual dimorphism in human teeth. We wanted to know whether it is possible to determine the sex of an individual if only the anterior teeth are visible. Fifty intraoral photographs showing the front tooth region of female and male individuals (age: from 7 to 75 years) were randomly arranged in actual size on a questionnaire. The lip region was covered in each case. Besides "female" and "male", one was also able to check "?" if undecided. The questionnaires were distributed to 50 expert test persons (dentists, dental technicians, dental assistants, and students of dental medicine) and to 50 laymen and were all returned for evaluation. Although the correct sex was recognized on single photographs to a maximum of 76%, it was inco... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4578488 Wed, 09 Mar 2011 16:51:52 +0100 4578488 http://www.medworm.com/index.php?rid=4567047&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fr03056760v401085%2F The objectives of this study were to measure the occlusal wear of composite resin denture teeth in patients wearing a complete denture and to evaluate factors affecting wear. Fifty participants provided with complete dentures in at least one jaw were included. Gypsum casts were made from preliminary vinyl polysiloxane impressions 4 weeks after insertion, then after 6 (t 1), 12 (t 2), and 24 months (t 3). Three-hundred and three posterior denture teeth were evaluated after 24 months. Wear was measured indirectly, from the casts, by means of a three-dimensional laser scanner device. Sequential images of the occlusal surfaces were digitized and superimposed (occlusal matching). Statistical analysis was performed by the use of mixed regression models, with the patient be... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4567047 Mon, 07 Mar 2011 17:02:17 +0100 4567047 http://www.medworm.com/index.php?rid=4567048&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2F924165483j740146%2F Abstract  The aim of the present study was to assess the caries experience of children aged 6 to 7 years old in a socially deprived suburban area of Brazil’s Federal District, using the ICDAS II system and to investigate determinants of dental caries. The survey was carried out in six public schools by three calibrated examiners, on a sample of 835 children. ICDAS II codes had to be converted into dmf/DMF components at surface and tooth levels, resulting in unfamiliar caries variables, to enable some meaningful reporting of the findings. The prevalence of dental caries, including enamel and dentinal carious lesions, in primary teeth was 95.6% and in permanent teeth it was 63.7%. Mean values of d2mf2-t (enamel and dentinal lesions), d3mf3-t (dentine lesions), D2MF2-T a... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4567048 Mon, 07 Mar 2011 17:02:15 +0100 4567048 http://www.medworm.com/index.php?rid=4561717&cid=s_33454_11_f&fid=33454&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fy85501024473r7j1%2F Abstract  Papillon–Lefèvre syndrome (PLS) is characterised by aggressively progressive periodontitis combined with palmo-plantar hyperkeratosis. It is caused by “loss of function” mutations in the cathepsin C gene. The hypothesis behind this study is that PLS patients’ polymorphonuclear leukocytes (PMNs) produce more proinflammatory cytokines to compensate for their reduced capacity to neutralize leukotoxin and to eliminate Aggregatibacter actinomycetemcomitans. Production of more interleukin (IL)-8 would result in the attraction of more PMNs. The aim of this study was to evaluate the cytokine profile in PLS patients’ blood cultures. Blood was sampled from eight PLS patients (one female) from six families (antiinfective therapy completed: six; edentulous: two) wit... Clinical Oral Investigations journals http://www.medworm.com/rss/comments.php?id=4561717 Fri, 04 Mar 2011 16:46:09 +0100 4561717