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    1340 results match your criteria Brazilian oral research[Journal]

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    Polymerization shrinkage stress of composite resins and resin cements - What do we need to know?
    Braz Oral Res 2017 Aug 28;31(suppl 1):e62. Epub 2017 Aug 28.
    University of Tennessee Health Science Center, College of Dentistry, Department of Bioscience Research, TN, United States of America.
    Polymerization shrinkage stress of resin-based materials have been related to several unwanted clinical consequences, such as enamel crack propagation, cusp deflection, marginal and internal gaps, and decreased bond strength. Despite the absence of strong evidence relating polymerization shrinkage to secondary caries or fracture of posterior teeth, shrinkage stress has been associated with post-operative sensitivity and marginal stain. The latter is often erroneously used as a criterion for replacement of composite restorations. Read More

    Light curing in dentistry and clinical implications: a literature review.
    Braz Oral Res 2017 Aug 28;31(suppl 1):e61. Epub 2017 Aug 28.
    Dalhousie University, Faculty of Dentistry, Department of Dental Clinical Sciences, Halifax, NS, Canada.
    Contemporary dentistry literally cannot be performed without use of resin-based restorative materials. With the success of bonding resin materials to tooth structures, an even wider scope of clinical applications has arisen for these lines of products. Understanding of the basic events occurring in any dental polymerization mechanism, regardless of the mode of activating the process, will allow clinicians to both better appreciate the tremendous improvements that have been made over the years, and will also provide valuable information on differences among strategies manufacturers use to optimize product performance, as well as factors under the control of the clinician, whereby they can influence the long-term outcome of their restorative procedures. Read More

    Randomized clinical trials of dental bleaching - Compliance with the CONSORT Statement: a systematic review.
    Braz Oral Res 2017 Aug 28;31(suppl 1):e60. Epub 2017 Aug 28.
    Universidade Estadual de Ponta Grossa - UEPG, School of Dentistry, Department of Restorative Dentistry, Ponta Grossa, Paraná, Brazil.
    We reviewed the literature to evaluate: a) The compliance of randomized clinical trials (RCTs) on bleaching with the CONSORT; and b) the risk of bias of these studies using the Cochrane Collaboration risk of bias tool (CCRT). We searched the Cochrane Library, PubMed and other electronic databases, to find RCTs focused on bleaching (or whitening). The articles were evaluated in compliance with CONSORT in a scale: 0 = no description, 1 = poor description and 2 = adequate description. Read More

    Efficiency of polymerization of bulk-fill composite resins: a systematic review.
    Braz Oral Res 2017 Aug 28;31(suppl 1):e59. Epub 2017 Aug 28.
    Universidade de Guarulhos - UNG, Dental Research and Graduate Studies Division, Department of Restorative Dentistry, Guarulhos, SP, Brazil.
    This systematic review assessed the literature to evaluate the efficiency of polymerization of bulk-fill composite resins at 4 mm restoration depth. PubMed, Cochrane, Scopus and Web of Science databases were searched with no restrictions on year, publication status, or article's language. Selection criteria included studies that evaluated bulk-fill composite resin when inserted in a minimum thickness of 4 mm, followed by curing according to the manufacturers' instructions; presented sound statistical data; and comparison with a control group and/or a reference measurement of quality of polymerization. Read More

    Dental ceramics: a review of new materials and processing methods.
    Braz Oral Res 2017 Aug 28;31(suppl 1):e58. Epub 2017 Aug 28.
    Universidade de São Paulo - USP, School of Dentistry, Department of Biomaterials and Oral Biology, São Paulo, SP, Brazil.
    The evolution of computerized systems for the production of dental restorations associated to the development of novel microstructures for ceramic materials has caused an important change in the clinical workflow for dentists and technicians, as well as in the treatment options offered to patients. New microstructures have also been developed by the industry in order to offer ceramic and composite materials with optimized properties, i.e. Read More

    Bonding efficiency and durability: current possibilities.
    Braz Oral Res 2017 Aug 28;31(suppl 1):e57. Epub 2017 Aug 28.
    GC Europe N.V., Professional Services Manager, Scientific Affairs, Leuven, Belgium.
    Bonding plays a major role in dentistry nowadays. Dental adhesives are used in association with composites to solve many restorative issues. However, the wide variety of bonding agents currently available makes it difficult for clinicians to choose the best alternative in terms of material and technique, especially when different clinical situations are considered. Read More

    Should my composite restorations last forever? Why are they failing?
    Braz Oral Res 2017 Aug 28;31(suppl 1):e56. Epub 2017 Aug 28.
    Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, Nijmegen, The Netherlands.
    Composites resins have become the first choice for direct anterior and posterior restorations. The great popularity is related to their esthetic appearance and reduced need of sound tissue removal as compared with former treatments. Several studies have demonstrated that composite restorations may last long in clinical service. Read More

    Trends in restorative composites research: what is in the future?
    Braz Oral Res 2017 Aug 28;31(suppl 1):e55. Epub 2017 Aug 28.
    Universidade de São Paulo - USP, School of Dentistry,Department of Biomaterials and Oral Biology, São Paulo, SP, Brazil.
    Clinical trials have identified secondary caries and bulk fracture as the main causes for composite restoration failure. As a measure to avoid frequent reinterventions for restoration replacement, composites with some sort of defense mechanism against biofilm formation and demineralization, as well as materials with lower susceptibility to crack propagation are necessary. Also, the restorative procedure with composites are very time-consuming and technically demanding, particularly concerning the application of the adhesive system. Read More

    Effect of rewetting solutions on micropush-out dentin bond strength of new bioceramic endodontic material.
    Braz Oral Res 2017 Aug 31;31:e76. Epub 2017 Aug 31.
    Universidade Ceuma - UNICEUMA, São Luis, MA, Brazil.
    To evaluate the influence of rewetting solutions on bond strength to root dentin of conventional gutta-percha (GP) or niobium phosphate glass-based gutta-percha (GNb) associated with a bioceramic sealer. The root canals of 80 human mandibular premolars were prepared using nickel-titanium instruments and irrigation with sodium hypochlorite and EDTA. The teeth were randomly divided into four groups according to the gutta-percha used: GNb or GP associated with EndoSequence BC Sealer (BC) and the solution for rewetting dentin before filling (distilled water; phosphate buffer saline solution - PBS; simulated body fluid - SBF; or no solution). Read More

    Evaluation of the physicochemical properties of silicone- and epoxy resin-based root canal sealers.
    Braz Oral Res 2017 Aug 21;31:e72. Epub 2017 Aug 21.
    Universidade de São Paulo - USP, School of Dentistry of Ribeirão Preto, Department of Restorative Dentistry, Ribeirão Preto, SP, Brazil.
    To assess the physicochemical properties of AH Plus, GuttaFlow 2, GuttaFlow BioSeal, and MM Seal, five samples of each root canal sealer were evaluated to determine their setting time (ST), dimensional change (DC), solubility (SL), flow (FL), and radiopacity (RD) according to American National Standards Institute/American Dental Association (ANSI/ADA) Specification 57. The distilled and deionized water obtained from the SL test were subjected to atomic absorption spectrometry to observe the presence of Ca2+, K+, and Na+ ions. Statistical analysis was performed by using one-way ANOVA and Tukey-Kramer tests (p < 0. Read More

    Longitudinal impact of clinical and socioenvironmental variables on oral health-related quality of life in adolescents.
    Braz Oral Res 2017 Aug 21;31:e70. Epub 2017 Aug 21.
    Universidade Estadual de Campinas - Unicamp, Piracicaba Dental School, Department of Community Dentistry, Piracicaba, São Paulo, Brazil.
    The aim of the present study was to investigate the impact of oral diseases, socioeconomic status, and family environmental factors on changes in the perception of oral health-related quality of life (OHRQoL) in adolescents. A prospective cohort study was conducted in Juiz de Fora, Minas Gerais, Brazil, with a sample of 286 twelve-year-old adolescents from public and private schools, selected by means of multistage random sampling. The adolescents were clinically examined for dental caries experience (number of decayed, missing, and filled teeth - DMFT index), presence of bleeding, and orthodontic treatment needs. Read More

    Risk factors for implant failure: a retrospective study in an educational institution using GEE analyses.
    Braz Oral Res 2017 Aug 21;31:e69. Epub 2017 Aug 21.
    Universidade Veiga de Almeida - UVA, School of Dentistry, Rio de Janeiro, RJ, Brazil.
    This study aimed to evaluate dental implant outcomes and to identify risk factors associated with implant failure over 12 years via dental records of patients attending an educational institution. Dental records of 202 patients receiving 774 dental implants from 2002 to 2014 were analyzed by adopting a more reliable statistical method to evaluate risk factors with patients as the unit [generalized estimating equation (GEE)]. Information regarding patient age at implantation, sex, use of tobacco, and history of systemic diseases was collected. Read More

    Characterization and coating stability evaluation of nickel-titanium orthodontic esthetic wires: an in vivo study.
    Braz Oral Res 2017 Aug 21;31:e68. Epub 2017 Aug 21.
    Universidade Federal Fluminense, Department of Orthodontics, Niterói, RJ, Brazil.
    The objective of this study was to compare coating dimensions and surface characteristics of two different esthetic covered nickel-titanium orthodontic rectangular archwires, as-received from the manufacturer and after oral exposure. The study was designed for comparative purposes. Both archwires, as-received from the manufacturer, were observed using a stereomicroscope to measure coating thickness and inner metallic dimensions. Read More

    Ki-67 protein predicts survival in oral squamous carcinoma cells: an immunohistochemical study.
    Braz Oral Res 2017 Aug 21;31:e66. Epub 2017 Aug 21.
    Universidade Federal do Pará - UFPA, Belém, PA, Brazil.
    The aim of this study was to identify the expression of Ki-67 and MCM3 in oral squamous cell carcinoma (OSCC) as well as to address the correlation with patient survival and clinical features. Samples were collected from 51 patients with OSCC who presented for follow-up. Immunohistochemical expression of Ki-67 and MCM3 in all groups was performed. Read More

    Comparing depth-dependent curing radiant exposure and time of curing of regular and flow bulk-fill composites.
    Braz Oral Res 2017 Aug 21;31:e65. Epub 2017 Aug 21.
    University of Florida, College of Dentistry, Department of Restorative Dental Sciences, Gainesville, FL, United States of America.
    The effect of restoration depth on the curing time of a conventional and two bulk-fill composite resins by measuring microhardness and the respective radiosity of the bottom surface of the specimen was investigated. 1-, 3- and 5-mm thick washers were filled with Surefil SDR Flow-U (SDR), Tetric EvoCeram Bulk Fill-IVA (TEC) or Esthet-X HD-B1 (EHD), and cured with Bluephase® G2 for 40s. Additional 1-mm washers were filled with SDR, TEC or EHD, placed above the light sensor of MARC®, stacked with pre-cured 1-, 3- or 5-mm washer of respective material, and cured for 2. Read More

    Different engagement of TLR2 and TLR4 in Porphyromonas gingivalis vs. ligature-induced periodontal bone loss.
    Braz Oral Res 2017 Aug 21;31:e63. Epub 2017 Aug 21.
    The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA.
    This study was conducted to investigate the roles of different Toll-like receptor (TLR) signaling in Porphyromonas gingivalis (P. gingivalis)-induced and ligature-induced experimental periodontal bone resorption in mice. Wild-type (WT), TLR2 knockout (KO), TLR4KO, and TLR2&4 KO mice with C57/BL6 background were divided into three groups: control, P. Read More

    Probiotic therapy reduces inflammation and improves intestinal morphology in rats with induced oral mucositis.
    Braz Oral Res 2017 Jul 3;31:e71. Epub 2017 Jul 3.
    Universidade do Oeste Paulista - Unoeste, Graduate Program in Dentistry, Presidente Prudente, SP, Brazil.
    The aim of the present study was to evaluate the effect of systemic administration of probiotics (PROB) on the progression of experimentally induced oral and intestinal mucositis in rats immunosuppressed by chemotherapy (5-fluorouracil: 5-FU). Twenty-four rats were divided into the following groups (n=6): GC (control), GPROB, G5FU and G5-FU/PROB. Groups GPROB and G5-FU/PROB received 1 g of probiotic incorporated into each 100 g of feed (Bacillus subtilis, Bifidobacterium bifidum, Enterococcus faecium and Lactobacilllus acidophilus), beginning 30 days before oral mucositis induction. Read More

    Antibiotic therapy as an adjunct to scaling and root planing in smokers: a systematic review and meta-analysis.
    Braz Oral Res 2017 Jul 3;31:e67. Epub 2017 Jul 3.
    Universidade do Estado de São Paulo - Unesp, School of Dentistry, Department of Surgery and Integrated Clinic, Araçatuba, SP, Brazil.
    The aim of this study was to perform a systematic review and meta-analysis to examine the effect of systemic antibiotics in the periodontal treatment of smokers. The selection criteria were as follows: controlled randomized clinical trials; studies published in English; studies with smoker patients diagnosed with chronic periodontitis; patients without systemic diseases; studies that used systemic antibiotic therapy associated with periodontal treatment; studies that presented results for the test and control groups and assessments of clinical periodontal parameters, such as probing depth (PD), bleeding on probing (BOP), and clinical attachment level (CAL). The differences in average weights were calculated with a confidence interval (CI) of 95% for PD reduction, CAL gain and BOP. Read More

    Clinical performance and failure modes of pulpless teeth restored with posts: a systematic review.
    Braz Oral Res 2017 Jul 3;31:e64. Epub 2017 Jul 3.
    Universidade Federal de Santa Maria - UFSM, Faculty of Dentistry, Department of Restorative Dentistry, Santa Maria, RS, Brazil.
    The aim of this systematic review was to compare the clinical performance and failure modes of teeth restored with intra-radicular retainers. A search was performed on PubMed/Medline, Central and ClinicalTrials databases for randomized clinical trials comparing clinical behavior and failures of at least two types of retainers. From 341 detected papers, 16 were selected for full-text analysis, of which 9 met the eligibility criteria. Read More

    Translucency and color stability of resin composite and dental adhesives as modeling liquids - A one-year evaluation.
    Braz Oral Res 2017 Jul 3;31:e54. Epub 2017 Jul 3.
    Universidade Federal de Pelotas - UFPel, School of Dentistry, Graduate Program in Dentistry, Pelotas, RS, Brazil.
    The aim of this study is to evaluate the influence of modeling liquids on the translucency and color shade of resin composites (RCs) after one year of storage. RC specimens were prepared using either a conventional insertion technique (control; without modeling liquid) or a restorative dental modeling insertion technique (RDMIT) with dental adhesives as modeling liquids (Scotchbond™ Multi-Purpose [SBMP; 3M ESPE] or Adper™ Single Bond 2 [SB; 3M ESPE]). The initial colors of the specimens were obtained with a digital spectrophotometer and the CIEL*a*b* color system, after which specimens were stored (37°C) in distilled water or red wine for 12 months. Read More

    The role of Osterix protein in the pathogenesis of peripheral ossifying fibroma.
    Braz Oral Res 2017 Jul 3;31:e53. Epub 2017 Jul 3.
    Universidade Estadual Paulista - Unesp, Science and Technology Institute, Department of Bioscience and Oral Diagnosis, São José dos Campos, SP, Brazil.
    Peripheral ossifying fibroma (POF) is a reactive lesion of oral tissues, associated with local factors such as trauma or presence of dental biofilm. POF treatment consists of curettage of the lesion combined with root scaling of adjacent teeth and/or removal of other sources of irritants. This study aimed to analyze the clinical and pathological features of POF and to investigate the immunoexpression of Osterix and STRO-1 proteins. Read More

    Differential diagnosis and clinical management of periapical radiopaque/hyperdense jaw lesions.
    Braz Oral Res 2017 Jul 3;31:e52. Epub 2017 Jul 3.
    Universidade Federal de Goiás - UFG, School of Dentistry, Department of Stomatologic Sciences, Goiânia, GO, Brazil.
    Great attention has been given to the study of radiolucent periapical lesions to avert possible misdiagnosis of apical periodontitis associated with certain radiolucent non-endodontic lesions. However, there are a significant number of radiopaque lesions found in the periapical region, which could be equally relevant to endodontic practice. The diagnosis and management of these radiopaque/hyperdense lesions could be challenging to the endodontist. Read More

    Immunohistochemical expression of TGF-β1 and MMP-9 in periapical lesions.
    Braz Oral Res 2017 Jul 3;31:e51. Epub 2017 Jul 3.
    Universidade de Pernambuco - UPE, School of Dentistry, Department of Oral Pathology, Camaragibe, PB, Brazil.
    The objective of this study was to evaluate the expression of matrix metalloproteinase 9 (MMP-9) and transforming growth factor beta (TGF-β1) in periapical lesion samples correlated with the intensity of the inflammatory infiltrate and thickness of the epithelial lining. Forty-five cases of periapical lesions (23 periapical granulomas and 22 radicular cysts) were subjected to morphological and immunohistochemical analyses using anti-MMP-9 and anti-TGF-β1 antibodies. The data were analyzed using the following tests: non-parametric Mann-Whitney, chi-square, Fisher's exact test and Spearman's correlation test (P<0. Read More

    The need for endodontic treatment and systemic characteristics of hematopoietic stem cell transplantation patients.
    Braz Oral Res 2017 Jul 3;31:e50. Epub 2017 Jul 3.
    Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Departament of Operative Dentistry, Belo Horizonte, MG, Brazil.
    The aim of this study is to investigate the relationship between the epidemiological and clinical profiles of patients before and after hematopoietic stem cell transplantation (HSCT) and the need for endodontic treatment. The subjects included 188 individuals enrolled in the dental care program for transplanted patients of the School of Dentistry, Federal University of Minas Gerais (Faculdade de Odontologia da Universidade Federal de Minas Gerais, FO-UFMG) from March 2011 through March 2016. The patients were subjected to an HSCT conditioning dental regimen based on a thorough clinical and radiographic evaluation. Read More

    Evaluation of deflection forces of orthodontic wires with different ligation types.
    Braz Oral Res 2017 Jul 3;31:e49. Epub 2017 Jul 3.
    Universidade de São Paulo - USP, Hospital for Rehabilitation of Craniofacial Anomalies, Bauru, SP, Brazil.
    The aim of this study was to evaluate deflection forces of orthodontic wires of different alloys engaged into conventional brackets using several ligation types. Stainless steel, conventional superelastic nickel-titanium and thermally activated nickel-titanium archwires tied into conventional brackets by a ring-shaped elastomeric ligature (RSEL), a 8-shaped elastomeric ligature (8SEL) and a metal ligature (ML) were tested. A clinical simulation device was created especially for this study and forces were measured with an Instron Universal Testing Machine. Read More

    Reports of uncontrolled clinical trials for directly placed restorations in vital teeth.
    Braz Oral Res 2017 Jul 3;31:e48. Epub 2017 Jul 3.
    University of the Witwatersrand, Department of Community Dentistry, Faculty of Health Science, Johannesburg, South Africa.
    Uncontrolled trials are criticized as unreliable. This study aimed to establish how the number of published reports from uncontrolled clinical trials compares to that of controlled trials for directly placed restorations in vital teeth and whether their annual number is increasing, stable or decreasing. PubMed was searched and suitable citations of uncontrolled and controlled trial reports published between 1990-2016 were included. Read More

    Efficacy of two mouthwashes with cetylpyridinium chloride: a controlled randomized clinical trial.
    Braz Oral Res 2017 Jul 3;31:e47. Epub 2017 Jul 3.
    Colgate-Palmolive Technology Center, Piscataway, NJ USA.
    This study aimed to evaluate the anti-plaque and anti-gingivitis effects of two mouthwashes containing cetylpyridinium chloride (CPC), in comparison to negative control mouthwash. One hundred and twenty subjects were randomly assigned to study groups: test (0.075% CPC and 0. Read More

    Calcium hydroxide associated with a new vehicle: Psidium cattleianum leaf extracts. Tissue response evaluation.
    Braz Oral Res 2017 Jul 3;31:e43. Epub 2017 Jul 3.
    Universidade Estadual Paulista - UNESP, Araçatuba School of Dentistry, Department of Endodontics, Araçatuba, SP, Brazil.
    The aim of this study was to evaluate edemogenic activity and subcutaneous inflammatory reaction induced by Psidium cattleianum leaf extracts associated with Ca(OH)2. Thirty male Wistar rats, split equally into three groups [aqueous extract + Ca(OH)2; ethanolic extract + Ca(OH)2; and propylene glycol + Ca(OH)2], were assessed every 3 h or 6 h (five animals in each period). Under general anesthesia, 0. Read More

    3D analysis of effects of primary surgeries in cleft lip/palate children during the first two years of life.
    Braz Oral Res 2017 Jun 5;31:e46. Epub 2017 Jun 5.
    Universidade de São Paulo - USP, Bauru Dental School, Department of Pediatric Dentistry, Bauru, São Paulo, Brazil.
    This study aimed at monitoring the maxillary growth of children with cleft lip/palate in the first two years of life, and to evaluate the effects of primary surgeries on dental arch dimensions. The sample consisted of the three-dimensional digital models of 25 subjects with unilateral complete cleft lip and palate (UCLP) and 29 subjects with isolated cleft palate (CP). Maxillary arch dimensions were measured at 3 months (before lip repair), 1 year (before palate repair), and at 2 years of age. Read More

    The anti-caries activity and toxicity of an experimental propolis-containing varnish.
    Braz Oral Res 2017 Jun 5;31:e45. Epub 2017 Jun 5.
    Universidade de Campinas - UNICAMP, Piracicaba Dental School, Department of Physiological Sciences, Piracicaba, SP, Brazil.
    We investigated the anti-caries effects of an experimental propolis varnish in vivo, and further tested its toxicity against fibroblasts. Fifty-six SPF female Wistar rats were infected with Streptococcus mutans UA159 (SM) and allocated into four groups (n = 14/group): G1, propolis varnish (15%/PV); G2, chitosan varnish (CV/vehicle); G3, gold standard (GS/Duraphat®); and G4, untreated. The animals received a single varnish application on their molars and were submitted to a high cariogenic challenge (Diet-2000, 56% sucrose, and 5% sucrose-added water, ad libitum) for 4 weeks. Read More

    A randomized clinical trial on the sealing of occlusal carious lesions: 3-4-year results.
    Braz Oral Res 2017 Jun 5;31:e44. Epub 2017 Jun 5.
    Universidade Federal do Rio Grande do Sul - UFRS, Faculty of Odontology, Department of Social and Preventive Dentistry, Porto Alegre, RS, Brazil.
    This randomized clinical trial aimed to assess the efficacy of sealing occlusal carious lesions in permanent teeth. The sample consisted of 54 occlusal carious lesions in permanent molars and premolars of 49 patients aged 8-43 years (median: 19 years). The inclusion criteria comprised the presence of a cavity with no access allowing biofilm control. Read More

    Association between crack cocaine use and reduced salivary flow.
    Braz Oral Res 2017 Jun 5;31:e42. Epub 2017 Jun 5.
    Universidade Luterana do Brasil, Postgraduate program in Dentistry, Canoas, RS, Brazil.
    Crack cocaine use appears to have an impact on oral conditions. However, changes in the salivary flow among crack users have not been fully clarified. The aim of this study was to compare stimulated salivary flow and the occurrence of hyposalivation between crack users and non-users. Read More

    Salivary protein polymorphisms and risk of dental caries: a systematic review.
    Braz Oral Res 2017 Jun 5;31:e41. Epub 2017 Jun 5.
    Universidade Federal Fluminense - UFF, Institute of Biology, Department of Cell and Molecular Biology, Niteroi, RJ, Brazil.
    Dental caries is an oral pathology associated with both lifestyle and genetic factors. The caries process can be influenced by salivary composition, which includes ions and proteins. Studies have described associations between salivary protein polymorphisms and dental caries experience, while others have shown no association with salivary proteins genetic variability. Read More

    Association between pathogens from tracheal aspirate and oral biofilm of patients on mechanical ventilation.
    Braz Oral Res 2017 Jun 5;31:e38. Epub 2017 Jun 5.
    Universidade Federal do Maranhão - UFMA, Department of Dentistry, São Luís,Maranhão, Brazil.
    The aim of this study was to detect possible associations between respiratory pathogens from tracheal aspirate and oral biofilm samples in intubated patients in an intensive care unit (ICU), and to identify the most common respiratory pathogens in oral biofilm, particularly in patients that developed ventilator-associated pneumonia (VAP). Two oral biofilm samples were collected from the tongue of intubated patients (at admission and after 48 hours) and analyzed by culture with the Antibiotic Sensitivity Test. The results from the tongue biofilm samples were compared with the tracheal secretions samples. Read More

    Predictors of success for mandibular repositioning appliance in obstructive sleep apnea syndrome.
    Braz Oral Res 2017 Jun 5;31:e37. Epub 2017 Jun 5.
    Universidade Federal de São Paulo - Unifesp, School of Medicine, Department of Psicobiologia, São Paulo, SP, Brazil.
    The characteristics of non-obese patients with mild to moderate Obstructive Sleep Apnea Syndrome (OSAS) who will present with a good response to Mandibular Repositioning Appliance (MRA) treatment have not yet been well established in the literature. The aim of this study is to assess whether polysomnographic (PSG), demographic, anthropometric, cephalometric, and otorhinolaryngological parameters predict MRA success in the treatment of OSAS. Forty (40) males with mild and moderate OSAS were assessed pretreatment and 2-months post-treatment after wearing an MRA. Read More

    Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin.
    Braz Oral Res 2017 May 15;31:e40. Epub 2017 May 15.
    Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Department of Conservative Dentistry, Porto Alegre, RS, Brazil.
    This study aimed to evaluate the effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin. Sixty root canals from mandibular incisors were instrumented and randomly divided into six groups (n = 10) according to the irrigant used: QMiX, 17% EDTA, 10% citric acid (CA), 1% peracetic acid (PA), 2.5% NaOCl (solution control), and distilled water (negative control). Read More

    Comparisons of IgA response in saliva and colostrum against oral streptococci species.
    Braz Oral Res 2017 May 15;31:e39. Epub 2017 May 15.
    Universidade de São Paulo - USP, Medical School of Ribeirao Preto, Department of Pediatrics, Ribeirão Preto, SP, Brazil.
    The present study compared IgA specificity against oral streptococci in colostrum and saliva samples. Sixty-two mother-and-child pairs were included; samples of colostrum (C) and saliva (MS) were collected from the mothers and saliva samples were collected from babies (BS). The specificity of IgA against Streptococcus mutans and S. Read More

    Does the trait anxiety affect the dental fear?
    Braz Oral Res 2017 May 4;31:e36. Epub 2017 May 4.
    Mayo Clinic, Department of Family Medicine, Rochester, MN, USA.
    The aims of the present study were to evaluate possible associations between trait anxiety, dental fear and the predictors of these interactions including demographic characteristics and dental history of patients applied to the dental care center in Ankara, Turkey. A sample of 607 participants (mean age: 21.02 ± 2. Read More

    3-year survival rates of retained composite resin and ART sealants using two assessment criteria.
    Braz Oral Res 2017 May 4;31:e35. Epub 2017 May 4.
    Radboud University Medical Center, College of Dental Sciences, Department of Oral Function and Prosthetic Dentistry, Nijmegen, The Netherlands.
    The aim was to test the null-hypothesis that there is no difference in the cumulative survival rate of retained composite resin (CR) sealants and a high-viscosity glass-ionomer Atraumatic Restorative Treatment (ART) sealant in first permanent molars calculated according to the traditional and the modified retention assessment criteria over a period of 3 years. This cluster-randomized controlled clinical trial consisted of 123 schoolchildren, 6-7-years-old. At baseline, high-caries risk pits and fissures of fully erupted first permanent molars were treated with CR and ART sealants. Read More

    Microbiological outcomes from different periodontal maintenance interventions: a systematic review.
    Braz Oral Res 2017 May 4;31:e33. Epub 2017 May 4.
    Universidade Federal do Rio Grande do Sul - UFRGS, Dental School, Department of Conservative Dentistry, Porto Alegre, RS, Brazil.
    This study aimed to investigate the differences in the subgingival microbiological outcomes between periodontal patients submitted to a supragingival control (SPG) regimen as compared to subgingival scaling and root planing performed combined with supragingival debridement (SPG + SBG) intervention during the periodontal maintenance period (PMP). A systematic literature search using electronic databases (MEDLINE and EMBASE) was conducted looking for articles published up to August 2016 and independent of language. Two independent reviewers performed the study selection, quality assessment and data collection. Read More

    Chlorhexidine with or without alcohol against biofilm formation: efficacy, adverse events and taste preference.
    Braz Oral Res 2017 May 4;31:e32. Epub 2017 May 4.
    Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Department of Periodontology, Porto Alegre, RS, Brazil.
    In recent years, different chlorhexidine formulations have been tested, including an alcohol-free alternative, but the effect of this solution on early biofilm formation is not clear. A crossover, randomized, double-blind clinical trial was conducted to evaluate the effect of two chlorhexidine solutions against supra- and subgingival biofilm formation (NCT#02656251). Thirty-five participants were randomized and asked to rinse twice daily with 15 ml of an alcohol-containing 0. Read More

    Influence of addition of [2-(methacryloyloxy)ethyl]trimethylammonium chloride to an experimental adhesive.
    Braz Oral Res 2017 May 4;31:e31. Epub 2017 May 4.
    Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Department of Conservative Dentistry, Laboratory of Dental Materials, Porto Alegre, RS, Brazil.
    The aim of this study was to develop an experimental adhesive with addition of [2-(methacryloyloxy)ethyl]trimethylammonium chloride (METAC) and to evaluate its mechanical and biological properties and its in vitro antibacterial activity. An experimental adhesive resin was formulated with Bis-GMA, TEGDMA, and HEMA. The antibacterial monomer was added at concentrations of 1%, 2. Read More

    Analysis of GLUT-1, GLUT-3, and angiogenic index in syndromic and non-syndromic keratocystic odontogenic tumors.
    Braz Oral Res 2017 Apr 27;31:e34. Epub 2017 Apr 27.
    Universidade Estadual da Paraíba - UEPB, Dental School, Department of Dentistry, Campina Grande, PB, Brazil.
    The aim of this study was to evaluate the immunoexpression of glucose transporters 1 (GLUT-1) and 3 (GLUT-3) in keratocystic odontogenic tumors associated with Gorlin syndrome (SKOTs) and non-syndromic keratocystic odontogenic tumors (NSKOTs), and to establish correlations with the angiogenic index. Seventeen primary NSKOTs, seven recurrent NSKOTs, and 17 SKOTs were selected for the study. The percentage of immunopositive cells for GLUT-1 and GLUT-3 in the epithelial component of the tumors was assessed. Read More

    Survival of sealants in molars affected by molar-incisor hypomineralization: 18-month follow-up.
    Braz Oral Res 2017 Apr 27;31:e30. Epub 2017 Apr 27.
    Universidade do Estado de São Paulo - Unesp, Araraquara Dental School, Department of Orthodontics and Pediatric Dentistry, Araraquara, São Paulo, Brazil.
    The objective of this study was to evaluate the clinical survival of sealants applied in first permanent molars (FPMs) affected by molar-incisor hypomineralization (MIH), at 18 months of follow-up. Forty-one first permanent molars were selected from 21 children, 6-8 years of age. MIH was classified by one calibrated examiner (kappa = 0. Read More

    Influence of root dentin treatment on the push-out bond strength of fibre-reinforced posts
    Braz Oral Res 2017 04 10;31:e29. Epub 2017 Apr 10.
    Universidade de São Paulo - USP, Ribeirão Preto Dental School, Department of Restorative Dentistry, Ribeirão Preto, SP, Brazil.
    This study evaluates the influence of root dentin treatment with NaOCl alone and combined with EDTA, with and without ultrasound activation, on the push-out bond strength (BS) of fiber-reinforced posts in weakened roots, cemented with RelyX or Panavia. The root canals of 42 maxillary canines were instrumented with Reciproc and 2.5% NaOCl. Read More

    Effects of avocado/soybean unsaponifiables (ASU) on the treatment of ligature-induced periodontitis in rats
    Braz Oral Res 2017 04 10;31:e28. Epub 2017 Apr 10.
    Universidade Estadual de São Paulo - UNESP, School of Dentistry of Araraquara, Department of Diagnosis and Surgery, Araraquara, SP, Brazil.
    The purpose of this study is to evaluate the effect of the avocado/soybean unsaponifiables (ASU) on the treatment of induced periodontitis in rats. Periodontitis was induced in 84 rats via ligature placement around the second upper molar, which was removed after 7 days, and scaling and root planning (SRP) was performed at this time. Subsequently, the rats were randomly allocated to four groups with 21 animals each: One SRP group in which saline solution was administered (SS), and three groups in which ASU was administered (0. Read More

    Dental Management Survey Brazil (DMS-BR): creation and validation of a management instrument
    Braz Oral Res 2017 04 10;31:e26. Epub 2017 Apr 10.
    Universidade de São Paulo - USP, School of Dentistry, Community Dentistry Department, São Paulo, SP, Brazil.
    Questionnaires for the assessment of knowledge and self-perception can be useful to diagnose what a dentist knows about management and administration. The aim of the present study was to create and validate the Dental Management Survey Brazil (DMS-BR) scale, based on meetings with experts in the field. After having elaborated the first version, 10 audits were performed in dental offices in order to produce the final version, which included nine dimensions: location, patient, finance, marketing, competition, quality, staff, career, and productivity. Read More

    Longevity of metal-ceramic crowns cemented with self-adhesive resin cement: a prospective clinical study
    Braz Oral Res 2017 04 10;31:e22. Epub 2017 Apr 10.
    Universidade Federal de Santa Maria - UFSM, School of Dentistry, Post-graduate Program in Dentistry, Santa Maria, RS, Brazil.
    Resin cements are often used for single crown cementation due to their physical properties. Self-adhesive resin cements gained widespread due to their simplified technique compared to regular resin cement. However, there is lacking clinical evidence about the long-term behavior of this material. Read More

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