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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 38.

In vitro performance of different methods in detecting occlusal caries lesions
Conclusion: Even though all methods present similar performance in detecting occlusal caries lesions, visual inspection seems to be sufficient to be used in clinical practice for detection and assessment of lesion depth. Other methods may be useful in monitoring caries lesion behaviour.
Source: Journal of Dentistry - November 9, 2012 Category: Dentistry Source Type: research

Linear dimensional change, compressive strength and detail reproduction in type IV dental stone dried at room temperature and in a microwave oven
This study evaluated the influence of drying techniques at room temperature and microwave oven on the linear dimensional change, compressive strength and detail reproduction in type IV dental stones. MATERIAL AND METHODS: Three type IV dental stone brands were selected; elite Rock, Shera Premium and Durone IV. Two different drying protocols were tested in 4 groups (n=10); G1 - room temperature (25±4ºC) dried for 2 hours; G2 - room temperature dried for 24 hours; G3 - room temperature dried for 7 days and G4 - microwave oven dried at 800 W for 5 minutes and after 2 hours at room temperature. After drying, the samples were...
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Micro-leakage at the implant-abutment interface with different tightening torques in vitro
This study evaluated the microleakage at the implant/abutment interface of external hexagon (eH) implants and abutments with different amounts of bacteria and tightening torques. MATERIAL AND METHODS: A bacterial suspension was prepared to inoculate the implants. The first phase of this study used nine EH implants and abutments that were divided into three groups with different amounts of bacterial suspension (n=3): V0.5: 0.5 µL; V1.0: 1.0 µL e V1.5: 1.5 µL, and tightened to the manufacturer's recommended torque. The second phase of this experiment used 27 assemblies that were similar to those used in the first phase. T...
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Effect of a multi-layer infection control barrier on the micro-hardness of a composite resin
OBJECTIVE: The aim of this study was to evaluate the effect of multiple layers of an infection control barrier on the micro-hardness of a composite resin. MATERIAL AND METHODS: One, two, four, and eight layers of an infection control barrier were used to cover the light guides of a high-power light emitting diode (LeD) light curing unit (LCU) and a low-power halogen LCU. The composite specimens were photopolymerized with the LCUs and the barriers, and the micro-hardness of the upper and lower surfaces was measured (n=10). The hardness ratio was calculated by dividing the bottom surface hardness of the experimental groups b...
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Analysis by confocal laser scanning microscopy of the MDPB bactericidal effect on S. mutans biofilm CLSM analysis of MDPB bactericidal effect on biofilm
Conclusions: The quantitative analysis demonstrated a significant decrease of S. mutans CFU at 90 s PB exposure and only after 300 s of Se application. Protect Bond showed an earlier antibacterial effect than Se Bond.
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

A study of the distobuccal root canal orifice of the maxillary second molars in Chinese individuals evaluated by cone-beam computed tomography
Conclusions: The position of the distobuccal root canal orifice of the maxillary second molars with 3 or 4 root canals in a Chinese population was complex and variable. Clinicians should have a thorough knowledge of the anatomy of the maxillary second molars.
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Effects of curing protocol and storage time on the micro-hardness of resin cements used to lute fiber-reinforced resin posts
CONCLUSIONS: The micro-hardness of the cements was affected by the curing and storage variables and were material-dependent.
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

The influence of surface treatment on the implant roughness pattern
An important parameter for the clinical success of dental implants is the formation of direct contact between the implant and surrounding bone, whose quality is directly influenced by the implant surface roughness. A screw-shaped design and a surface with an average roughness of Sa of 1-2 µm showed a better result. The combination of blasting and etching has been a commonly used surface treatment technique. The versatility of this type of treatment allows for a wide variation in the procedures in order to obtain the desired roughness. OBJECTIVES: To compare the roughness values and morphological characteristics of 04 bran...
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Quantitative analysis of S. mutans and S. sobrinus cultivated independently and adhered to polished orthodontic composite resins
CONCLUSIONS: This study showed that the orthodontic composite resin evaluated in the GIm and GIs, obtained the lowest adherence of S. mutans and S. sobrinus, which may reduce the enamel demineralization and the risk of white spot lesion formation.
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Effect of pre-flaring and file size on the accuracy of two electronic apex locators
OBJECTIVE: This ex vivo study evaluated the effect of pre-flaring and file size on the accuracy of the Root ZX and Novapex electronic apex locators (EALs). MATERIAL AND METHODS: The actual working length (WL) was set 1 mm short of the apical foramen in the palatal root canals of 24 extracted maxillary molars. The teeth were embedded in an alginate mold, and two examiners performed the electronic measurements using #10, #15, and #20 K-files. The files were inserted into the root canals until the "0.0" or "APEX" signals were observed on the LED or display screens for the Novapex and Root ZX, respectively, retracting to the 1...
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Dentoalveolar comparative study between removable and fixed cribs, associated to chincup, in anterior open bite treatment
CONCLUSIONS: The Fpc+C combination was more efficient in the correction of the negative overbite mainly due to greater extrusion of the maxillary incisors. However, the Rpc+C appliance promoted better upper and lower incisor inclination, resulting in a more adequate overjet.
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Histomorphometric analysis of the temporal bone after change of direction of force vector of mandible: an experimental study in rabbits
OBJECTIVES: The present study aimed at performing a histological evaluation of the response of temporal bone tissue to a change of direction of the force vector of the mandible in relation to the base of the skull. MATERIAL AND METHODS: Adult rabbits were assigned into four groups with two control and four experimental animals in each group. experimental animals underwent surgery, which resulted in a change of direction of the force vector on the right temporomandibular joint. Samples were collected after 15, 30, 60 and 90 days for histological analysis. RESULTS: In the two-way analysis of variance, the effect of group and...
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

In vivo accuracy of conventional and digital radiographic methods in confirming root canal working length determination by Root ZX
OBJECTIVES: To compare, in vivo, the accuracy of conventional and digital radiographic methods in determining root canal working length. MATERIAL AND METHODS: Twenty-five maxillary incisor or canine teeth from 22 patients were used in this study. Considering the preoperative radiographs as the baseline, a 25 K file was inserted into the root canal to the point where the Root ZX electronic apex locator indicated the APEX measurement in the screen. From this measurement, 1 mm was subtracted for positioning the file. The radiographic measurements were made using a digital sensor (Digora 1.51) or conventional type-E films, siz...
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
OBJECTIVE: The aim of this study was to test a new portable vibrator for plaster pouring (developed for this purpose), comparing the effect of its use on the accuracy of working cast of implant-supported restorations to the conventional vibrator. MATERIAL AND METHODS: From a master cast with 2 implants, 30 transfer moldings were made randomly and divided into three groups: Group I (GI): pouring performed in an outsourced dental laboratory with conventional plaster vibrator (10 casts), Group II (GII): pouring performed in the laboratory of the Federal University of Santa Catarina (UFSC) with conventional plaster vibrator (1...
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Impact of filler size and distribution on roughness and wear of composite resin after simulated toothbrushing
CONCLUSIONS: As restorative materials suffer alterations under mechanical challenges, such as toothbrushing, the use of nanofilled materials seem to be more resistant than microhybrid composite resins, being less prone to be rougher and worn.
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Decreased phagocytic function in neutrophils and monocytes from peripheral blood in periodontal disease
Conclusion: The data demonstrated a reduction in the function of phagocytes, suggesting a decrease in immune defenses in periodontitis.
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Saliva and dental erosion
Conclusions: Saliva is the most important biological factor affecting the progression of dental erosion. Knowledge of its components and properties involved in this protective role can drive the development of preventive measures targeting to enhance its known beneficial effects.
Source: Journal of Applied Oral Science - November 9, 2012 Category: Dentistry Source Type: research

Discussion Topic: Cortical vs Cancellous Graft Material
Can anyone shed some light on the key differences between cortical and cancellous bone graft materials?
Source: Dental Implants Discussed by Experts - November 9, 2012 Category: Dentistry Authors: osseonews Tags: Dental Implants Q&A Source Type: news

Self-etching aspects of a three-step etch-and-rinse adhesive
Conclusions Etching enamel with phosphoric acid but avoiding etching dentin before the application of OFL, optimal marginal adaptation could be obtained, evidencing a self-etching primer effect. Clinical relevance A reliable adhesive interface was attained with the application of the three-step etch-and-rinse OFL adhesive with a selective enamel etching, representing an advantage on restoring deep cavities. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-012-0878-yAuthors Jose Bahillo, Department of Operative Dentistry and Endodontics, Internation...
Source: Clinical Oral Investigations - November 9, 2012 Category: Dentistry Tags: Clinical Oral Investigations Source Type: research

The association between occlusal factors and noncarious cervical lesions: a systematic review
Conclusion Current scientific evidence does not support an association between ORF and NCCL. Further prospective studies with standardised methods are vital to strengthen the evidence. Clinical significance Understanding the risk factors for NCCL is important to control the causes and to help the dentist choose the best approach for the patient. The evidence does not support intervention to alter some occlusal factors for the prevention or control of the progression of NCCL.
Source: Journal of Dentistry - November 9, 2012 Category: Dentistry Source Type: research

Influence of resin-based composite restoration technique and endodontic access on cuspal deflection and cervical microleakage scores
Publication year: 2012Source:Journal of DentistryRuaa El-Helali, Adam H Dowling, Emma Louise McGinley, Henry F Duncan, Garry JP Fleming Objectives To assess cuspal deflection and cervical microleakage of mesio-occlusaldistal cavities in standardised premolar teeth restored incrementally with resin-based composite (RBC) paced horizontally or obliquely and with endodontic access cavities (with and without gutta percha and epoxy resin sealer obturation). Materials and Methods Thirty-two teeth were allocated to four groups (n=8) and RBC restored in eight horizontal (Group A) or oblique increments (Groups B-D) using a quartz-t...
Source: Journal of Dentistry - November 9, 2012 Category: Dentistry Source Type: research

Salivary proteins as a biomarker for dental caries – A systematic review
Conclusion There was not sufficient evidence to establish salivary proteins as a biomarker for this disease although three of the seven studies showed a relation between salivary proteins and dental caries in terms of protein phenotypes, total protein concentration and protein molecular weight.
Source: Journal of Dentistry - November 9, 2012 Category: Dentistry Source Type: research

Alexithymic and somatisation scores in patients with temporomandibular pain disorder correlate with deficits in facial emotion recognition
Summary Current studies suggest dysfunctional emotional processing as a key factor in the aetiology of temporomandibular disorder (TMD). Investigating facial emotion recognition (FER) may offer an elegant and reliable way to study emotional processing in patients with TMD. Twenty patients with TMD and the same number of age‐, sex‐ and education‐matched controls were measured with the Facially Expressed Emotion Labelling (FEEL) test, the 26‐item Toronto Alexithymia Scale (TAS‐26), the Screening for Somatoform Symptoms (SOMS‐2a), the German Pain Questionnaire and the 21‐item Hamilton Depression Rating Scale (HA...
Source: Journal of Oral Rehabilitation - November 9, 2012 Category: Dentistry Authors: J. Haas, P. Eichhammer, H. C. Traue, H. Hoffmann, M. Behr, T. Crönlein, C. Pieh, V. Busch Tags: Original Article Source Type: research

Association of subgingival colonization of Candida albicans and other yeasts with severity of chronic periodontitis
Conclusion In this group of patients, subgingival colonization of some yeasts, especially C. albicans, was associated with the severity of CP.
Source: Journal of Periodontal Research - November 9, 2012 Category: Dentistry Authors: A. Canabarro, C. Valle, M. R. Farias, F. B. Santos, M. Lazera, B. Wanke Tags: Original Article Source Type: research

Successful surgical management of keratoderma hereditaria mutilans
Content Type Journal ArticleCategory Case ReportsPages 1-3DOI 10.1007/s11552-012-9458-5Authors Jared J. Liebman, Department of Surgery, Division of Plastic and Reconstructive Surgery, Einstein Medical Center Philadelphia, Einstein Healthcare Network, 5401 Old York Road, Suite 206, Philadelphia, PA 19141, USAYuan Liu, Department of Surgery, Division of Plastic and Reconstructive Surgery, Cooper University Hospital, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, 3 Cooper Plaza, Suite 411, Camden, NJ 08103, USA Journal HandOnline ISSN 1558-9455Print ISSN 1558-9447
Source: Hand - November 9, 2012 Category: Surgery Tags: Hand Source Type: research

miR-196a Overexpression and miR-196a2 Gene Polymorphism Are Prognostic Predictors of Oral Carcinomas
Conclusions High miR-196a expression in tumor tissue and the presence of the TT variant of miR-196a2 gene indicate worse survival in OSCC. Content Type Journal ArticleCategory Translational Research and BiomarkersPages 1-9DOI 10.1245/s10434-012-2618-6Authors Chung-Ji Liu, Department of Oral and Maxillofacial Surgery, MacKay Memorial Hospital, Taipei, Taiwan, ROCMeng-Miao Tsai, Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei, Taiwan, ROCHsi-Feng Tu, Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei, Taiwan, ROCMan-Tin Lui, Depart...
Source: Annals of Surgical Oncology - November 9, 2012 Category: Cancer & Oncology Tags: Annals of Surgical Oncology Source Type: research

Light-emitting diode photobiomodulation: effect on bone formation in orthopedically expanded suture in rats—early bone changes
Abstract The aim of this experimental study was to evaluate histomorphometrically the effects of light-emitting diode (LED) photobiomodulation therapy (LPT) on bone formation in response to expansion of the interpremaxillary suture in rats. Twenty male, 50- to 60-day-old Wistar rats were divided into two equal groups (control and experimental). Both groups were subjected to expansion for 5 days, and 50 cN of force was applied to the maxillary incisors with helical spring. An OsseoPulse® LED device, 618-nm wavelength and 20-mW/cm2 output power irradiation, was applied to the interpremaxillary sutur...
Source: Lasers in Medical Science - November 9, 2012 Category: Laser Surgery Tags: Lasers in Medical Science Source Type: research

Influence of surface treatments and resin cement selection on bonding to zirconia
This study aimed to evaluate the surface changes caused in zirconia by different surface treatments and the influence of the surface treatment and cement selection on bonding to zirconia under aging. Sintered zirconia specimens were divided into five groups (n = 31) based on the surface treatment, namely, control, air abrasion, silica coating, laser and air abrasion + laser. After surface treatment, surface roughness and microscope analyses were performed on one specimen of each group. Composite cylinders were then bonded to conditioned ceramics using RelyX U100 (RXU), Clearfil Esthetic Cement (CEC) and Panavia F (...
Source: Lasers in Medical Science - November 9, 2012 Category: Laser Surgery Tags: Lasers in Medical Science Source Type: research

Instant dentin hypersensitivity relief of a single topical application of an in-office desensitizing paste containing 8% arginine and calcium carbonate: A split-mouth, randomized-controlled study.
Conclusions. The tested in-office desensitizing paste containing 8.0% arginine and calcium carbonate provides significantly greater hypersensitivity relief compared to calcium carbonate alone. PMID: 23140517 [PubMed - as supplied by publisher]
Source: Acta Odontologica Scandinavica - November 9, 2012 Category: Dentistry Authors: Kapferer I, Pflug C, Kisielewsky I, Giesinger J, Beier US, Dumfahrt H Tags: Acta Odontol Scand Source Type: research

Chemical debridement of contaminated titanium surfaces: An in vitro study.
Conclusions. In this in vitro study the decontamination potential of a suspension of 3% H(2)O(2) and 1.6 g/L TiO(2) or 3% H(2)O(2) alone were encouraging. Whether such procedures would have a similar effect in vivo remains to be determined. PMID: 23140518 [PubMed - as supplied by publisher]
Source: Acta Odontologica Scandinavica - November 9, 2012 Category: Dentistry Authors: Henderson E, Schneider S, Petersen FC, Haugen HJ, Wohlfahrt JC, Ekstrand K, Ekfeldt A Tags: Acta Odontol Scand Source Type: research

Expectations and satisfaction with care for periodontal specialist patients.
Conclusion. Having a good relation to the caregiver and having confidence in the caregiver seems to indicate satisfied patients receiving periodontal treatment at periodontal clinics. PMID: 23140519 [PubMed - as supplied by publisher]
Source: Acta Odontologica Scandinavica - November 9, 2012 Category: Dentistry Authors: Mårtensson C, Söderfeldt B, Axtelius B, Andersson P Tags: Acta Odontol Scand Source Type: research

The diagnosis and conservative treatment of a complex type 3 dens invaginatus using cone beam computed tomography (CBCT) and 3D plastic models
Abstract AimTo investigate the use of 3D plastic models, printed from cone beam computed tomography (CBCT) data, for accurate diagnosis and conservative treatment of a complex case of dens invaginatus. SummaryA chronic apical abscess with a draining sinus tract was diagnosed during the treatment planning stage of orthodontic therapy. Radiographic examination revealed a large radiolucent area associated with an invaginated right maxillary central incisor, which was found to contain a vital pulp. The affected tooth was strategic in the dental arch. Conventional periapical radiographs provided only partial information about t...
Source: International Endodontic Journal - November 9, 2012 Category: Dentistry Authors: A. Kfir, Y. Telishevsky‐Strauss, A. Leitner, Z. Metzger Tags: Case Report Source Type: research

Is there sufficient evidence to support the long‐term efficacy of mineral trioxide aggregate (MTA) for endodontic therapy in primary teeth?
Abstract Several papers have been published to illustrate the effectiveness of mineral trioxide aggregate (MTA) as a pulpotomy medicament. Most of these reports do not offer a critical assessment on the data quality. Therefore, this review evaluated whether the currently available evidence is of an appropriate quality to support the long‐term effectiveness of MTA as a pulpotomy medicament in primary molars using a standardized assessment criterion. A comprehensive literature search of human clinical outcome studies, which employed MTA as a pulpotomy medicament in primary teeth, was conducted using the MEDLINE database. T...
Source: International Endodontic Journal - November 9, 2012 Category: Dentistry Authors: R. P. Anthonappa, N. M. King, L. C. Martens Tags: Review Source Type: research

Kids need at least 7 minutes a day of 'vigorous' physical activity, but most aren't getting that
(University of Alberta Faculty of Medicine & Dentistry) Children need a minimum of seven minutes a day of vigorous physical activity, demonstrates recently published findings by University of Alberta medical researchers and their colleagues across Canada.
Source: EurekAlert! - Social and Behavioral Science - November 9, 2012 Category: Global & Universal Source Type: news

Dentists' preferences for diagnosis, management and referral of chronic oro-facial pain: Results from a national survey
Conclusions: The greater variation in responses to scenarios based on patients with chronic oro-facial pain may reflect the difficulty clinicians face in diagnosing and treating this condition. Management appears to follow a biomedical model and most clinicians chose to refer patients for treatment. There are few specialist services to cater for such referrals, indicating a need to train primary care practitioners in management of chronic COFP, along with the establishment of evidence-based guidelines.
Source: Health Education Journal - November 9, 2012 Category: Health Management Authors: Aggarwal, V. R., Joughin, A., Zakrzewska, J., Appelbe, P., Tickle, M. Tags: Articles Source Type: research

Connexin 26 facilitates gastrointestinal bacterial infection in vitro
In this study, a significant reduction in EPEC adherence was observed in cells expressing mutant Cx26 compared with WT Cx26. Furthermore, a significant reduction in both cellular invasion by S. flexneri and adherence by EPEC was demonstrated in human intestinal cell lines following treatment with Cx26 short interfering RNA. These in vitro results suggest that the loss of functional Cx26 expression provides improved protection against gastrointestinal bacterial pathogens. Thus, Cx26 represents a potential therapeutic target for gastrointestinal bacterial infection. Content Type Journal ArticleCategory Regular A...
Source: Cell and Tissue Research - November 8, 2012 Category: Cytology Tags: Cell and Tissue Research Source Type: research

Promoting Volunteerism in Global Health: Lessons from a Medical Mission in Northern Mexico
Abstract The challenges of meeting global health care needs in communities throughout the developing world are becoming increasingly complex. Understanding what motivates volunteers is important for organizations that seek to harness and develop long-term volunteers in order to meet the need for global health care services. Here we report a case study of a successful volunteer clinic that has provided medical, dental and surgical services to under-served residents of northern Mexico for more than 20 years. Our objective was to understand what promotes sustained volunteerism. Thirty semi-structured inter...
Source: Journal of Community Health - November 8, 2012 Category: Global & Universal Tags: Journal of Community Health Source Type: research

Influence of dentin and enamel pretreatment with acidic sulfur compounds on adhesive performance
Conclusion This study shows that ASC prior to dental restoration placement cannot be recommended for etch-and-rinse procedures on enamel but is appropriate for dentin without interfering with routine bonding procedures. Clinical relevance The application of acidic sulfur compounds prior to adhesive restoration placement should be restricted to dentin only as it may negatively influence shear bond strength on sound enamel. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00784-012-0877-zAuthors Alexis Ioannidis, Clinic for Preventive Dentistry, Periodonto...
Source: Clinical Oral Investigations - November 8, 2012 Category: Dentistry Tags: Clinical Oral Investigations Source Type: research

In vitro and in vivo investigation of the biological and mechanical behaviour of resin-modified glass-ionomer cement containing chlorhexidine
Conclusion The RMGIC and 1.25% CHX mixture showed great biological and mechanical behaviour and could be a good treatment against caries progression. Clinical significance The association of CHX with a liner RMGIC opens a new perspective for arresting residual caries after IPT.
Source: Journal of Dentistry - November 8, 2012 Category: Dentistry Source Type: research

Influence of age on tooth autotransplantation with complete root formation
Summary The aim of this study was to investigate risk factors with age in the long‐term prognosis of autotransplantation of teeth with complete root formation at dental clinics. Participating dentists were asked to provide information on transplantations they had undertaken from 1 January 1990 to 31 December 2010. Data on a total of 708 teeth from 637 patients were collected. The data were screened to exclude patients who were under 25 or 70 years of age and over, those who were smokers or whose smoking habits were unknown, those whose transplanted teeth had incomplete root formation or multiple roots and those with few...
Source: Journal of Oral Rehabilitation - November 8, 2012 Category: Dentistry Authors: K. Yoshino, N. Kariya, D. Namura, I. Noji, K. Mitsuhashi, H. Kimura, A. Fukuda, I. Kikukawa, T. Hayashi, N. Yamazaki, M. Kimura, K. Tsukiyama, K. Yamamoto, A. Fukuyama, D. Hidaka, J. Shinoda, H. Mibu, Y. Shimakura, A. Saito, S. Ikumi, K. Umehara, F. Kamei Tags: Original Article Source Type: research

An analytical drilling force model and GPU-accelerated haptics-based simulation framework of the pilot drilling procedure for micro-implants surgery training
Abstract: The placement of micro-implants is a common but relatively new surgical procedure in clinical dentistry. This paper presents a haptics-based simulation framework for the pilot drilling of micro-implants surgery to train orthodontists to successfully perform this essential procedure by tactile sensation, without damaging tooth roots. A voxel-based approach was employed to model the inhomogeneous oral tissues. A preprocessing pipeline was designed to reduce imaging noise, smooth segmentation results and construct an anatomically correct oral model from patient-specific data. In order to provide a physically based h...
Source: Computer Methods and Programs in Biomedicine - November 8, 2012 Category: Bioinformatics Authors: Fei Zheng, Wen Feng Lu, Yoke San Wong, Kelvin Weng Chiong Foong Tags: Section II: Systems and Programs Source Type: research

Effect of a DPSS laser on the shear bond strength of ceramic brackets with different base designs
This study evaluated the shear bond strength (SBS) and adhesive remnant index (ARI) of ceramic brackets with different base designs using a 473-nm diode-pumped solid-state (DPSS) laser to test its usefulness as a light source. A total of 180 caries-free human premolars were divided into four groups according to the base designs: microcrystalline, crystalline particle (CP), dovetail, and mesh. For each base design, teeth were divided into three different subgroups for light curing using three different light-curing units (LCUs) (quartz–tungsten–halogen unit, light-emitting diode unit, and a DPSS laser of 473 nm...
Source: Lasers in Medical Science - November 8, 2012 Category: Laser Surgery Tags: Lasers in Medical Science Source Type: research

Association between root resorption incident to orthodontic treatment and treatment factors.
PMID: 23142948 [PubMed - as supplied by publisher]
Source: European Journal of Orthodontics - November 8, 2012 Category: Dentistry Authors: Celikoglu M, Halicioglu K, Caglaroglu M Tags: Eur J Orthod Source Type: research

Reply.
PMID: 23142949 [PubMed - as supplied by publisher]
Source: European Journal of Orthodontics - November 8, 2012 Category: Dentistry Authors: Motokawa M, Sasamoto T, Kaku M, Kawata T, Matsuda Y, Terao A, Tanne K Tags: Eur J Orthod Source Type: research

A dynamic analysis of the display of the dentition during speech.
Abstract The aim of this prospective study was to quantify the display of the dentition through the soft tissue frame during speech using videography for different age groups. Two hundred and sixty-one subjects were initially screened and were divided into five groups: group 1 (G1) (15-19 years), G2 (20-29 years), G3 (30-39 years), G4 (40-49 years), and G5 (≥50 years). Groups were also made on the basis of gender and history of orthodontic treatment. Video equipment was used to capture video and each frame was analysed out of which two frames that best represented the maximal display of maxillary incisors (MDMI) ...
Source: European Journal of Orthodontics - November 8, 2012 Category: Dentistry Authors: Jacobson A, Upadhyay M, Nanda R Tags: Eur J Orthod Source Type: research

Morphometric analysis of treatment effects of the Balters bionator in growing Class II patients.
Conclusions: Bionator appliance is able to induce significant mandibular shape changes that lead to the correction of Class II dentoskeletal disharmony. PMID: 23137316 [PubMed - as supplied by publisher]
Source: The Angle Orthodontist - November 8, 2012 Category: Dentistry Authors: Antunes CF, Bigliazzi R, Bertoz FA, Ortolani CL, Franchi L, Faltin K Tags: Angle Orthod Source Type: research

Gram‐positive bacteria as an antigen topically applied into gingival sulcus of immunized rat accelerates periodontal destruction
ConclusionsHeat‐treated and sonicated S. aureus and A. actinomycetemcomitans induced attachment loss in rats immunized with their suspensions. Our results suggest that not only gram‐negative but also gram‐positive bacteria are able to induce periodontal destruction.
Source: Journal of Periodontal Research - November 8, 2012 Category: Dentistry Authors: F. Nagano, T. Kaneko, Y. Yoshinaga, T. Ukai, A. Kuramoto, S. Nakatsu, K. Oshino, I. Ichimura, Y. Hara Tags: Original Article Source Type: research

Advice to the Healer(Colgan)
On the Art of CaringClinicians--physicians, nurses, dentists, pharmacists, social workers, psychologists, physician assistants, nurse practitioners, and others--share the unique responsibility of patient care and the limitless fulfillment this calling can provide. The healing professions have an ancient and venerable tradition of service, honor, and humanism that is often communicated from teacher to student in ...
Source: Springer Medicine titles - November 7, 2012 Category: Databases & Libraries Tags: History of Medicine Source Type: news

Can I restore this with a screw retained custom abutment?
Do you think I will be able to extract the custom post without damaging the implant abutment screw threads?
Source: Dental Implants Discussed by Experts - November 7, 2012 Category: Dentistry Authors: gkaplowitz Tags: Dental Implant Cases Source Type: news