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Intraseptal vs. periodontal ligament anaesthesia for maxillary tooth extraction: quality of local anaesthesia and haemodynamic responseEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract There is no data concerning the use of the intraseptal anaesthesia (ISA) for single tooth extraction. The aims of this study were to compare the clinical efficacy and haemodynamic responses of the ISA with the periodontal ligament anaesthesia (PLA) for single tooth extraction. Thirty-five randomly selected healthy patients (ASA I) undergoing maxillary lateral incisors extraction entered the study. Onset of anaesthesia, the width of the anaesthetic field and duration of anaesthesia were recorded by pinprick testing. Intensity of anaesthesia was evaluated on a visual analogue scale. Haemodynamic param...
Source: Clinical Oral Investigations - November 9, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Repair of furcal perforation using a new endodontic cementEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this study was to compare the histologic response elicited by repairing furcal perforations with mineral trioxide aggregate (MTA) and a new endodontic material in the name of “calcium enriched mixture (CEM) cement” in dogs’ teeth. Thirty-four premolars were randomly divided into four groups: MTA (n = 15), CEM (n = 15), positive, and negative controls (n = 4). Root canal therapy were carried out; perforations were made, and the furcation areas were then repaired with MTA or CEM cement. The animals were sacrificed after 3 months. The teeth and their adjacent structures...
Source: Clinical Oral Investigations - November 3, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Ex vivo radiographic tooth length measurements with the reference sphere method (RSM)Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract A reference-based radiographic “reference sphere method” (RSM) for accurate length measurements in (dental) projection radiographs for the assessment of tooth length in dry human mandible sections is evaluated. RSM determines the depth coordinates of reference spheres placed in the object plane from the elliptical distortion of their shadows. Two segments (one canine and one molar) of dry human mandibles were exposed 95 times at different angulations (0–40°) on a dental charge-coupled device receptor. Three steel spheres (diameters d 1 = 2.00 mm, d 2 = 3.00 mm) were attach...
Source: Clinical Oral Investigations - October 14, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Platelet-activating factor levels of serum and gingival crevicular fluid in nonsmoking patients with periodontitis and/or coronary heart diseaseEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The purpose of the present study was to investigate systemic and local levels of platelet-activating factor (PAF), a potent proinflammatory mediator implicated in cardiovascular pathophysiology in adult nonsmoking patients with periodontitis with or without coronary heart disease (CHD). Eighty-seven volunteers, 25 periodontitis patients, 19 periodontitis with CHD patients, 19 CHD patients, and 24 healthy controls were included, and periodontal conditions were assessed. Gingival crevicular fluid (GCF) and venous blood were collected, and PAF levels were measured by enzyme-linked immunosorbent assay. ...
Source: Clinical Oral Investigations - October 13, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Photodynamic therapy of persistent pockets in maintenance patients—a clinical studyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this study was to compare the short-term performance of a session of single photodynamic therapy (PDT) and of a conventional ultrasonic debridement (UST) in persistent pockets of maintenance patients. In a prospective, randomized, controlled, single-blind clinical study, patients with chronic periodontitis with at least two persistent pockets (>4 mm) were enrolled. They were treated either with UST (n = 29) or PDT (n = 25). Clinical and microbiological examinations were performed at baseline and after 3 month. For UST, the mean probing depth was reduced from 5.3 to 4....
Source: Clinical Oral Investigations - October 13, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Architectural characteristics of the normal and deformity mandible revealed by three-dimensional functional unit analysisEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The 3D architecture of the mandible contributes to the functional and morphological characteristics of the lower one third of craniofacial region. The mandible has six distinct functional units, and its architecture is the sum of balanced growth of each functional unit and surrounding matrix. A dentofacial deformity (DFD) with malocclusion can be interpreted as their unbalanced growth. In order to characterize the mandibular 3D architecture, we analyzed the 3D reconstructed computed tomography (CT) images in terms of functional units. We evaluated both sides of 30 datasets of 3D CT scans of normal c...
Source: Clinical Oral Investigations - October 13, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Investigating interocclusal perception in tactile teeth sensibility using symmetric and asymmetric analysisEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The purpose of this clinical trial was to determine the active tactile sensibility of natural teeth and to obtain a statistical analysis method fitting a psychometric function through the observed data points. On 68 complete dentulous test persons (34 males, 34 females, mean age 45.9 ± 16.1 years), one pair of healthy natural teeth each was tested: n = 24 anterior teeth and n = 44 posterior teeth. The computer-assisted, randomized measurement was done by having the subjects bite on thin copper foils of different thickness (5–200 µm) inserted between the teeth. The threshold ...
Source: Clinical Oral Investigations - October 9, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Assessment of 3-D nasal airway morphology in Southeast Asian adults with obstructive sleep apnea using acoustic rhinometryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, differences in nasal airway morphology are present when comparing patients with OSA to controls. These differences need to be recognized as they can improve our understanding of the etiological basis of obstructive sleep apnea and facilitate its subsequent management. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s00784-009-0342-9Authors Saeed M. Banabilh, Universiti Sains Malaysia School of Dental Sciences, Health Campus Kelantan MalaysiaA. H. Suzina, Universiti Sains Malaysia School of Medical Sciences, Health Campus Kelantan MalaysiaHazama Mohamad, Universiti Sains Malaysia Schoo...
Source: Clinical Oral Investigations - October 6, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Biomonitoring of oral epithelial cells in smokers and non-smokers submitted to panoramic X-ray: comparison between buccal mucosa and lateral border of the tongueEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of the present study was to comparatively evaluate DNA damage (micronucleus) and cellular death (pyknosis, karyolysis, and karyorrhexis) in exfoliated oral mucosa cells from smokers and non-smokers submitted to dental X-ray using two anatomic sites: buccal mucosa and lateral border of the tongue. A total of 15 heavy smokers and 17 non-smokers were submitted to panoramic dental radiography for orthodontic reasons. Individuals had epithelial cells from cheek and lateral border of the tongue mechanically exfoliated, placed in fixative, and dropped in clean slides which were checked for the abov...
Source: Clinical Oral Investigations - October 1, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Are pit and fissure sealants needed in children with a higher caries risk?Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this cross-sectional study was to analyse the preventive need of pit and fissure sealants (PFS) in a German population with a relatively high caries risk. The study involved 311 8- to 12-year-old children from the Ennepe–Ruhr District in North Rhine-Westphalia, Germany. Caries experience was scored according to WHO (1997) and ICDAS II criteria. PFS were assessed as intact or partially lost. The mean DFS values amounted to 0.5 for occlusal fissures, 0.2 for palatal/buccal pits and 0.3 for the remaining teeth. Non-cavitated caries lesions were recorded in average on 1.8 occlusal fissures ...
Source: Clinical Oral Investigations - October 1, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Noncontact intraoral measurement of force-related tooth mobilityEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this pilot study was to measure force-related tooth mobility. Vertical and horizontal anterior tooth mobility in 31 healthy periodontal subjects was measured by a noncontact optical measurement technique. The subjects continuously increased the force on each tooth by biting on a load cell. An automated software program recorded tooth displacement at 9-N intervals. Vertical and horizontal displacements were subsequently measured. The vector of tooth mobility in the buccal direction was calculated using the Pythagorean theorem. The average displacements over all subjects for each tooth were...
Source: Clinical Oral Investigations - September 30, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Bone resorption and complications in alveolar distraction osteogenesisEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Distraction osteogenesis presents an alternative procedure for augmentation of atrophic alveolar bone prior to inserting dental implants. The aim of this retrospective study was to evaluate complications of this method with specific focus on bone resorption during the consolidation period and the follow-up period after dental implant insertion into distracted bone. Thirty partially edentulous patients underwent a total of 36 vertical alveolar distractions with an extraosseous distraction system. Eleven devices were placed in the maxilla and 25 in the mandible. Eighty-two dental implants were inserte...
Source: Clinical Oral Investigations - September 23, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Neurofibromatosis 1 and dental cariesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, (1) NF1 per se does not predispose to caries; and (2) even if NF1 had an adverse effect on dental health, poor outcome can be counteracted with good personal dental care supported by well organized primary health care. The results of the present study are important to report since a common anecdotal perception is that the rate of caries may be higher in NF1 compared to reference population. Content Type Journal ArticleCategory Short CommunicationDOI 10.1007/s00784-009-0341-xAuthors Vivian Visnapuu, University of Turku Department of Cell Biology and Anatomy Kiinamyllynkatu 10 20520 Turku FinlandKaisu ...
Source: Clinical Oral Investigations - September 3, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Pulse or hyaline ring granuloma. Review of the literature on etiopathogenesis of oral and extraoral lesionsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Since the late 1950s, reports on an unusual giant-cell granulomatous lesion affecting the jaws, lungs, stomach and intestines have been published . Histopathologically, the lesions showed the presence of structureless hyaline rings with multinucleated giant cells. The aim of this review was to summarize the literature on the etiopathogenesis of the so-called oral and extraoral pulse or hyaline ring granuloma. Literature was searched using PubMed and Medline. In addition, hand search was performed. Search words were oral and extraoral hyaline ring granuloma, giant-cell hyaline angiopathy, pulse granu...
Source: Clinical Oral Investigations - August 28, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Influence of voluntary control of masticatory side and rhythm on cerebral hemodynamicsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this study was to investigate the influence on cerebral hemodynamics of voluntary control of masticatory side and rhythm during gum chewing. Blood flow velocity in the middle cerebral artery was measured using transcranial Doppler ultrasonography to evaluate cerebral circulation in healthy volunteers. Heart rate and masseter muscle activity were recorded simultaneously. Volunteers performed three tasks: (1) free gum chewing, (2) gum chewing in which mastication was limited to the right side, and (3) gum chewing in which mastication was limited to the right side and rhythm was set at 1.0&n...
Source: Clinical Oral Investigations - August 27, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Immediate bonding effectiveness of contemporary composite cements to dentinEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The objective of this study was to compare the one-week bonding effectiveness of nine contemporary composite cements used to lute ceramic to dentin and to determine an appropriate processing method for pretesting failures. The microtensile bond strengths (µTBS) of different luting agents including five self-adhesive cements (Unicem, 3 M ESPE; Maxcem, Kerr; Monocem, Shofu; G-Cem, GC; and Multilink Sprint, Ivoclar-Vivadent), two self-etch cements (Panavia F2.0 and Clearfil Esthetic Cement, Kuraray), and two etch-and-rinse cements (Calibra, Dentsply, and Variolink II, Ivoclar-Vivadent) were measured using a standard...
Source: Clinical Oral Investigations - August 24, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Chronic stress in myofascial pain patientsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Although myofascial pain has often been described as being associated with psychosocial stress, detailed evidence in support of this assumption, either from standardized clinical examination or from validated chronic stress questionnaires, is absent. The hypothesis of the present study was that some stressors lead to higher scores in patients suffering from chronic myofascial pain than in pain-free controls and in patients suffering from chronic facial pain. One hundred and fifty subjects were included in the study, and depending on clinical findings, divided into three groups: exclusively chronic m...
Source: Clinical Oral Investigations - August 24, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Implementation of new software for fast screening of cell compatibility on surface modifications using low-contrast time-lapsed microscopyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Assessment of cell adhesion and cell size provides valuable information on surface biocompatibility. However, most investigations on cell morphology dynamics are time and resource consuming, of rather descriptive character and lack procedures for appropriate quantification. The aim of the study was to develop a software programme which allows automated cell segmentation and identification as well as calculation and further processing of cell size in low-contrast images. The software utilises modified edge detection and morphologic operations for automatic cell analysis in light microscopy images. In...
Source: Clinical Oral Investigations - August 21, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Quantification of periodontal pathogens by paper point sampling from the coronal and apical aspect of periodontal lesions by real-time PCREmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The present study compared the recovery of six periodontal pathogens by paper point samples from two different aspects of periodontal lesions by quantitative real-time polymerase chain reaction (PCR). Twenty patients with untreated chronic periodontitis were randomized into two groups. Before subgingival instrumentation and after 10 weeks samples in group A were taken first with a paper point half length (HP) of the probing depth, then with a paper point full length (FP) at the same site. In group B sampling sequence was reversed. Analysis by real-time PCR enabled quantification of six bacteria...
Source: Clinical Oral Investigations - August 19, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Influence of fluoride- or triclosan-based desensitizing agents on adhesion of resin cements to dentinEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Effect of desensitizers on the bond strength of resin cements to dentin was evaluated. Intact premolars (N = 90) were embedded in polymethyl methacrylate; dentin surfaces were exposed, and they were randomly divided into two main groups of cements (Duolink (D), Variolink II (V); n = 45 per group) and then into three desensitizer subgroups (n = 15 per subgroup). Teeth in controls (C) were treated according to cements’ adhesion protocols; the other two groups received either fluoride- [Aqua-Prep F (F)] or triclosan-based [Seal&Protect (T)] desensitizers. Ceramic disks (Empress 2) were adhe...
Source: Clinical Oral Investigations - August 19, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Response to “Fatigue having a role in pathogenesis of osteonecrosis of the jaws” and “BRONJ and the microdamage Letter to the Editor”Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Content Type Journal ArticleCategory Letter to the EditorDOI 10.1007/s00784-009-0337-6Authors Sebastian Hoefert, Knappschaftskrankenhaus, Klinikum Vest, Academic Teaching Hospital of the Ruhr-Universität Bochum Department of Oral and Maxillofacial Surgery–Regional Plastic Surgery Dorstener Str. 151 45657 Recklinghausen GermanyHarald Eufinger, Knappschaftskrankenhaus, Klinikum Vest, Academic Teaching Hospital of the Ruhr-Universität Bochum Department of Oral and Maxillofacial Surgery–Regional Plastic Surgery Dorstener Str. 151 45657 Recklinghausen Germany Journal Clinical Oral InvestigationsOnline ISSN 1436...
Source: Clinical Oral Investigations - August 19, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Biomechanical role of peri-implant trabecular structures during vertical loadingEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this study was to identify the load transfer paths in cortical bone and trabecular structure of cancellous bone in the jawbones for loads from endosseous implants. Maxillae were resected from beagle dogs 6 months after implant surgery and imaged using micro-computed tomography (micro-CT). A three-dimensional structure was produced based on the CT data and peri-implant trabecular structure was observed. Load transfer paths were analyzed from the results of three-dimensional finite element analysis. Furthermore, buffer actions in bone trabeculae when strain increased during stress anal...
Source: Clinical Oral Investigations - August 18, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Atraumatic restorative treatment versus amalgam restoration longevity: a systematic reviewEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim was to report on the longevity of restorations placed using the atraumatic restorative treatment (ART) approach compared with that of equivalent placed amalgam restorations. Five databases were systematically searched for articles up to 16 March 2009. Inclusion criteria: (1) titles/abstracts relevant to the topic; (2) published in English; (3) reporting on 2-arm longitudinal in vivo trials; (4) minimum follow-up period of 12 months. Exclusion criteria: (1) insufficient random or quasi-random allocation of study subjects; (2) not all entered subjects accounted for at trial conclusion; (3...
Source: Clinical Oral Investigations - August 17, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Could digital imaging be an alternative for digital colorimeters?Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study evaluated the colour parameters of composite and ceramic shade guides determined using a colorimeter and digital imaging method with illuminants at different colour temperatures. Two different resin composite shade guides, namely Charisma (Heraeus Kulzer) and Premise (Kerr Corporation), and two different ceramic shade guides, Vita Lumin Vacuum (VITA Zahnfabrik) and Noritake (Noritake Co.), were evaluated at three different colour temperatures (2,700 K, 2,700–6,500 K, and 6500 K) of illuminants. Ten shade tabs were selected (A1, A2, A3, A3,5, A4, B1, B2, B3, C2 and C3) from each shade guide. ...
Source: Clinical Oral Investigations - August 17, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Alveolar bone changes under overhanging restorationsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this study was to investigate changes in the trabecular architecture of the alveolar bone beneath overhanging restorations with bitewing radiographs in patients having no radiographically visible vertical bone loss. Twenty-eight digital bitewing radiographs with overhanging restorations and 28 digital bitewing radiographs without any restorations belonging to the contralateral side of the same patient were included in the study. Regions of interests (ROI) were created in the alveolar bone along the interproximal regions. These ROIs were segmented to binary images with ImageJ, and, within ...
Source: Clinical Oral Investigations - August 17, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Studying the role of microcracks in the pathophysiology of BRONJEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Content Type Journal ArticleCategory Letter to the EditorDOI 10.1007/s00784-009-0336-7Authors Matthew R. Allen, Indiana University School of Medicine Indianapolis IN USA Journal Clinical Oral InvestigationsOnline ISSN 1436-3771Print ISSN 1432-6981 (Source: Clinical Oral Investigations)
Source: Clinical Oral Investigations - August 17, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Differences in lightness, chroma, and hue in the anterior teeth of quinquagenarians and septuagenariansEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The purpose of this study was to evaluate, for both genders and two elderly age groups, differences in lightness, chroma, and hue of pairs of natural anterior teeth, so that more accurate information on color would be available for the production of dentures with a natural appearance. The subjects in the younger group (YG) were 54 to 56 years of age, those in the older group 73 to 75 (N = 195, 48% women). Tooth color was measured using a spectrophotometer. Mixed models were calculated for each pair of teeth, with gender as a fixed factor. Gender did not have a significant effect in either a...
Source: Clinical Oral Investigations - August 17, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Long-term evaluation of direct pulp capping—treatment outcomes over an average period of 6.1 yearsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract To assess the treatment outcomes of direct pulp capping with calcium hydroxide, 248 teeth were examined 0.4–16.6 years (mean, 6.1 ± 4.4) after pulp capping. Only teeth diagnosed to be clinical healthy or with spontaneous pain were capped. The treatment outcome was assessed by interviewing for signs or symptoms responsiveness and sensibility testing with CO2. The overall survival rate was 76.3% after 13.3 years. Of the teeth, 80.2% were found to have a favourable treatment outcome. The pulps of 60-year-old patients showed a significant lower favourable treatment outcome when compared ...
Source: Clinical Oral Investigations - August 14, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

“Fatigue” having a role in the pathogenesis of osteonecrosis of the jawsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Content Type Journal ArticleCategory Letter to the EditorDOI 10.1007/s00784-009-0319-8Authors Athanassios Kyrgidis, Theagenio Cancer Hospital Department of Oral and Maxillofacial Surgery Thessaloniki GreeceKonstantinos Vahtsevanos, Theagenio Cancer Hospital Department of Oral and Maxillofacial Surgery Thessaloniki Greece Journal Clinical Oral InvestigationsOnline ISSN 1436-3771Print ISSN 1432-6981 (Source: Clinical Oral Investigations)
Source: Clinical Oral Investigations - August 12, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Clinical effects of nanocrystalline hydroxyapatite paste in the treatment of intrabony periodontal defects: a randomized controlled clinical studyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, after 6 months, the treatment of intrabony periodontal defects with a nano-HA paste leads to significantly improved clinical outcomes when compared with papilla preservation flap surgery alone. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s00784-009-0325-xAuthors Bernd Heinz, Hamburg GermanyAdrian Kasaj, Johannes Gutenberg-University Department of Operative Dentistry and Periodontology Mainz GermanyMarie Teich, Hamburg GermanySøren Jepsen, University of Bonn Department of Periodontology, Operative and Preventive Dentistry Welschnonnenstr. 17 53111 Bonn Germany Journal ...
Source: Clinical Oral Investigations - August 12, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Methodological consideration may influence results of some HIV-related articles to be more precise and applicable in practiceEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Content Type Journal ArticleCategory Letter to the EditorDOI 10.1007/s00784-009-0324-yAuthors Ayat Ahmadi, Tehran University of Medical Sciences Department of Statistics and Epidemiology Tehran IranFatemeh Momen-Heravi, Tehran University of Medical Sciences Faculty of Dentistry Enghelab Ave. Tehran Iran Journal Clinical Oral InvestigationsOnline ISSN 1436-3771Print ISSN 1432-6981 (Source: Clinical Oral Investigations)
Source: Clinical Oral Investigations - August 11, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Influence of examiner’s clinical experience on the reproducibility and accuracy of radiographic examination in detecting occlusal cariesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, the reproducibility of radiographic examination was influenced by the examiner’s clinical experience, training, and dental education as well as the accuracy in detecting occlusal caries. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s00784-009-0323-zAuthors Michele Baffi Diniz, São Paulo State University (UNESP) Department of Pediatric Dentistry, Araraquara School of Dentistry Araraquara São Paulo BrazilJonas Almeida Rodrigues, University of Bern Department of Preventive, Restorative, and Pediatric Dentistry, School of Dental Medicine Bern SwitzerlandKlaus W. Neuhaus, University ...
Source: Clinical Oral Investigations - August 9, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Three-year randomised clinical trial to evaluate the clinical performance, quantitative and qualitative wear patterns of hybrid composite restorationsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of the study was to compare the clinical performance, quantitative and qualitative wear patterns of conventional hybrid (Tetric Ceram), micro-filled hybrid (Gradia Direct Posterior) and nano-hybrid (Tetric EvoCeram, TEC) posterior composite restorations in a 3-year randomised clinical trial. Sixteen Tetric Ceram, 17 TEC and 16 Gradia Direct Posterior restorations were placed in human molars and evaluated at baseline, 6, 12, 24 and 36 months of clinical service according to US Public Health Service criteria. The gypsum replicas at each recall were used for 3D laser scanning to quantify w...
Source: Clinical Oral Investigations - August 9, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

In vivo substantivity of 0.12% and 0.2% chlorhexidine mouthrinses on salivary bacteriaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The in vivo antimicrobial activity of 0.12% and 0.2% chlorhexidine (CHX) on the salivary flora up to 7 h after its application, using epifluorescence microscopy with the SYTO 9/propidium iodide dual staining, was evaluated. Fifteen volunteers performed a single mouthrinse with sterile water (SM-water), a single mouthrinse with 0.12% CHX (0.12% SM-CHX) and a single and double mouthrinse with 0.2% CHX (0.2% SM-CHX and 0.2% DM-CHX). Samples of saliva were taken at 30 s, and 1, 3, 5, and 7 h after each application. In comparison with SM-water, 0.2% CHX (SM and DM) showed a significant ant...
Source: Clinical Oral Investigations - August 7, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Relationship between DIAGNOdent values and sealant penetration depth on occlusal fissuresEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, there is no relation between changes in DIAGNOdent values and increasing of depth sealant penetration within the occlusal fissures. Content Type Journal ArticleCategory Short CommunicationDOI 10.1007/s00784-009-0321-1Authors Jonas A. Rodrigues, University of Bern Department of Preventive, Restorative and Pediatric Dentistry, School of Dental Medicine Freiburgstrasse 7 CH 3010 Bern SwitzerlandMichele B. Diniz, UNESP Department of Pediatric Dentistry, Araraquara School of Dentistry Rua Humaitá, 1680 CEP:14801-903, Araraquara São Paulo BrazilIsabel Hug, University of Bern Department of Preventive, Resto...
Source: Clinical Oral Investigations - August 4, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Molecular leakage at implant-abutment connection—in vitro investigation of tightness of internal conical implant-abutment connections against endotoxin penetrationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Microleakage has been discussed as a major contributing factor for inflammatory reactions at the implant-abutment connection. In previous studies, the tightness against corpuscular bodies (viable bacteria) has been successfully investigated under static and dynamic conditions. The aim of this study was to investigate the tightness against endotoxins of two implant systems (AstraTech and Ankylos) with conical internal connections under static conditions. The inner parts of eight implants of each system were inoculated with endotoxin. Implants were screwed together with the respective abutments and st...
Source: Clinical Oral Investigations - July 25, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Effect of exposure time on the color stability of resin-based restorative materials when polymerized with quartz–tungsten halogen and LED lightEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The objective of this study was to investigate the effect of exposure time on color stability of resin-based restorative materials when polymerized with quartz–tungsten halogen light (QTH) or light-emitting diode light (LED). Eight samples of Ceram-X Mono, Dyract eXtra, and Tetric EvoCeram each were cured for 10, 20, and 60 s with QTH or LED. The CIE-Lab values (L*, a*, b*) were measured prior to and after performing water storage or a Suntest, and ΔL, Δa, Δb, and ΔE were calculated. Statistical analysis (p < 0.05) showed significant changes of the color values after each of the aging processes as well ...
Source: Clinical Oral Investigations - July 25, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Change in diet and oral hygiene over an 8-week period: effects on oral health and oral biofilmEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of the study was to monitor changes in oral health and oral biofilm composition in vivo during an experiment simulating prehistoric lifestyle and diet and poor oral hygiene. Thirteen subjects lived for a period of 8 weeks under Neolithic conditions. The following clinical parameters were recorded before and after the project: gingival and plaque index (Löe and Silness, Acta Odontol Scand 21:533, 1963; Silness and Löe, Acta Odontol Scand 22:121–135, 1964), probing pocket depth, and bleeding upon probing. In addition, supragingival plaque samples were collected both before and after t...
Source: Clinical Oral Investigations - July 25, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Randomised study for the 1-year crestal bone maintenance around modified diameter implants with different loading protocols: a radiographic evaluationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study evaluated by standardised digitised periapical radiography the crestal bone maintenance around modified diameter internal hex implants with variable thread design and narrow neck loaded with different procedures. Forty implants were placed in 25 patients. Twenty implants were conventionally loaded, 20 ones immediately loaded. Radiographs were taken with a customised bite record and processed with software. Measurements of bone from the fixture–abutment junction to mesial and distal marginal bone levels were made. Student’s t test statistical analysis was adopted. Baseline data were variable; at 1-year fo...
Source: Clinical Oral Investigations - July 23, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Bisphosphonate-related osteonecrosis of the jaw: clinical correlations with computerized tomography presentationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this study was to correlate clinical and computerized tomography (CT) features of bisphosphonate-related osteonecrosis of the jaws (BRONJ). All ONJ patients for whom there was complete CT scan imaging were eligible. Selected clinical parameters retrieved from their medical records were analyzed for correlation with CT parameters. The clinical presentation of BRONJ was supported by findings in CT imaging in 78.3%. The lesion’s size on CT correlated with the presence of purulent secretion (p = 0.03). When sequestrum was present, the median lesion’s size on CT was relatively big (28&...
Source: Clinical Oral Investigations - July 23, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Retention force measurement of telescopic crownsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study deals with the determination of the retentive force between primary and secondary telescopic crowns under clinical conditions. Forty-three combined fixed–removable prostheses with a total of 140 double crowns were used for retention force measurement of the telescopic crowns prior to cementation. The crowns had a preparation of 1–2°. A specifically designed measuring device was used. The retentive forces were measured with and without lubrication by a saliva substitute. The measured values were analyzed according to the type of tooth (incisors, canines, premolars, and molars). Additionally, a comparison...
Source: Clinical Oral Investigations - July 18, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Expression profile and synthesis of different collagen types I, II, III, and V of human gingival fibroblasts, osteoblasts, and SaOS-2 cells after bisphosphonate treatmentEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Bisphosphonates (BP) are used in the treatment of malignant osteolytic processes and postmenopausal osteoporosis. There have been a number of incidents in patients treated with BP. The incidents are described as an osteonecrosis of the jaw (ONJ). The main medications associated with these reports are zoledronic acid (ZOL) and pamidronate (PAM). The clinical presentations describe a deterioration of the jaw bones and surrounding tissues. The purpose of this study was to investigate expression of collagen types I, II, III, and V in human gingival fibroblasts, osteoblasts, and osteosarcoma cells (SaOS-...
Source: Clinical Oral Investigations - July 14, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Dentofacial characteristics of patients with hypodontiaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study aims to identify distinctive dentofacial characteristics of hypodontia patients. For this purpose, 189 young hypodontia patients (cases) were divided into subgroups, based on criteria from literature. Normalised differences between cases and controls were calculated for various parameters of dentofacial form. Subsequently, cluster analysis was applied to disclose subsets of hypodontia patients with distinctive dentofacial features. The ANB angle, interincisal angle and lower anterior face height were consistently significantly different amongst the subsets. Four clusters of patients with an increasing number...
Source: Clinical Oral Investigations - July 10, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Comparison of human dental follicle cells (DFCs) and stem cells from human exfoliated deciduous teeth (SHED) after neural differentiation in vitroEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, SHED and DFCs have different neural differentiation potentials under the same cell culture conditions. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s00784-009-0310-4Authors Christian Morsczeck, University of Regensburg Department of Conservative Dentistry and Periodontology Franz-Josef-Strauß-Allee 11 93053 Regensburg GermanyFlorian Völlner, University of Regensburg Department of Conservative Dentistry and Periodontology Franz-Josef-Strauß-Allee 11 93053 Regensburg GermanyMichael Saugspier, University of Regensburg Institute of Human Genetics Franz-Josef-Strauß-Allee 11 93053 Re...
Source: Clinical Oral Investigations - July 10, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Caries status and proximal lesion behaviour during a 6-year period in young adult Danes: an epidemiological investigationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The objectives of the study were (1) to describe the 1996-year baseline caries status of male Danish conscripts and (2) to assess their early proximal lesions 6-year behaviour. In 1996, all 20-year-old conscripts at Central Barrack Birkerød (n = 115) went through an oral examination, including visual surface-level fillings’ recording and a radiographic examination with bitewing radiographs that assessed the proximal-surface caries and restoration patterns. After 6 years, the behaviour of proximal lesions was studied in 73 of these subjects, and oral health habits were assessed through a questionnaire. Mean ...
Source: Clinical Oral Investigations - July 1, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Oral biofilm models for mechanical plaque removalEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract In vitro plaque removal studies require biofilm models that resemble in vivo dental plaque. Here, we compare contact and non-contact removal of single and dual-species biofilms as well as of biofilms grown from human whole saliva in vitro using different biofilm models. Bacteria were adhered to a salivary pellicle for 2 h or grown after adhesion for 16 h, after which, their removal was evaluated. In a contact mode, no differences were observed between the manual, rotating, or sonic brushing; and removal was on average 39%, 84%, and 95% for Streptococcus mutans, Streptococcus oralis, and Ac...
Source: Clinical Oral Investigations - June 30, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Effect of computer assistance on observer performance of approximal caries diagnosis using intraoral digital radiographyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Logicon Caries Detector™ (LDDC) is the only commercially available computer-assisted diagnostic system for caries diagnosis. The object of this study is to elucidate the efficacy of LDDC when used by inexperienced dentists. Fifty extracted teeth were imaged using an RVG6000. Seven dentists who had just passed the Japanese National Dental Board Examination observed those images without LDDC (woLDDC) and assessed the probability that caries lesions were present, then re-assessed the same teeth using LDDC (wLDDC). The areas under the receiver operating characteristic curves (Az) were compared. No sta...
Source: Clinical Oral Investigations - June 26, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Plaque removal efficacy of power and manual toothbrushes: a comparative studyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this study was to compare the plaque removal efficacy of a new oscillating/rotating/pulsating toothbrush [Oral-B® Professional Care® 8500 (PC 8500)] with two manual toothbrushes [Oral-B® CrossAction™ Vitalizer (CAV) and Oral-B® Indicator™ (IND), respectively]. The safety of the PC 8500 was also assessed. The study was a single-use, observer-masked, randomised 3 × 3 Latin square crossover design balanced for carryover effects. The enrolled subjects (n = 66) refrained from brushing for 23–25 h before each clinical examination. Plaque scores were recorded before and af...
Source: Clinical Oral Investigations - June 23, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Clinical and microbiological performance of resin-modified glass-ionomer liners after incomplete dentine caries removalEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aims of this study were to evaluate clinically and microbiologically the effects of two resin-modified glass-ionomer cements (RMGICs) used as liners after incomplete dentine caries removal and to identify Streptococcus mutans and Streptococcus sobrinus strains isolated from dentine samples, before and after indirect pulp treatment. Twenty-seven primary molars with deep carious lesions, but without signs and symptoms of irreversible pulpitis, were submitted to indirect pulp treatment. Treatment consisted of incomplete excavation of the carious dentine, application of one of the RMGICs (Vitrebond o...
Source: Clinical Oral Investigations - June 23, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals

Oral malodorous compound activates mitochondrial pathway inducing apoptosis in human gingival fibroblastsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The objective of this study was to determine the apoptotic pathway activated by H2S in HGFs. The HGFs were exposed to 50 ng/mL H2S, resulting in 18 ng/mL in the culture medium, which is lower than the concentration in periodontal pockets. The number of apoptotic cells after 24 and 48 h incubation was significantly higher than that in the control cultures (p < 0.05). Mitochondrial membrane depolarization and the release of cytochrome c, and caspase-3, and caspase-9 were also significantly increased after both 24- and 48-h incubation (p < 0.05), whereas caspase-8, a key enzyme in the receptor l...
Source: Clinical Oral Investigations - June 23, 2009 Category: Dentistry Tags: Clinical Oral Investigations Source Type: journals