Results: 1938

Shaping ability of rotatory or reciprocating instruments in curved canals: a micro-computed tomographic study

Braz. oral res. (Online); 30 (1), 2016
Abstract This study aimed to compare apical transportation, centering ratio, and working time during root canal preparation with Wizard Navigator (WN), WaveOne (WO), or ProTaper Universal (PT) and to describe deformation and fracture of these instruments. Thirty-six mesiobuccal roots from maxillary molar...

Expression of CD90 and P75NTR stem cell markers in ameloblastomas: a possible role in their biological behavior

Braz. oral res. (Online); 30 (1), 2016
Abstract Multicystic and unicystic ameloblastomas are benign odontogenic tumors that present distinct biological behavior. The investigation of stem cells has become an important branch of tumor biology, with several studies addressing the possible role of these cells in tumor growth, angiogenesis, progr...

Tumor-associated macrophages (TAMs): clinical-pathological parameters in squamous cell carcinomas of the lower lip

Braz. oral res. (Online); 30 (1), 2016
Abstract The objective of this study was to analyze the presence of tumor-associated macrophage (TAM) subpopulations M1 and M2 in squamous cell carcinoma of the lower lip (SCCLL) by immunohistochemitry, and to evaluate the possible role of these subtypes in the development of regional lymph node metastas...

Longitudinal study on clinical and microbial analysis of periodontal status in pregnancy

Braz. oral res. (Online); 30 (1), 2016
Abstract This study was aimed to provide a longitudinal overview of the subgingival bacterial microbiome using fluorescence in situ hybridization (FISH) technique, in women in the second trimester of pregnancy (between 14 and 24 weeks), and 48 h and 8 weeks postpartum. Of 31 women evaluated during pregna...

Fluoride and sodium trimetaphosphate (TMP) release from fluoride varnishes supplemented with TMP

Braz. oral res. (Online); 30 (1), 2016
Abstract This study assessed fluoride (F) and sodium trimetaphosphate (TMP) release into artificial saliva from varnishes containing 0%, 2.5%, and 5% NaF, supplemented or not with 5% TMP. The varnishes were applied on polyester sheets (n = 8/group), and F and TMP released into artificial saliva were meas...

Prevalence of periodontopathogens and Candida spp. in smokers after nonsurgical periodontal therapy - a pilot study

Braz. oral res. (Online); 30 (1), 2016
Abstract This pilot study aimed to evaluate the influence of smoking on clinical and microbiological parameters after nonsurgical periodontal therapy. Forty-eight subjects were grouped into smokers (SM, n = 24) and nonsmokers (NS, n = 24) and paired according to gender, age, ethnicity, and periodontal st...

Evaluation of children's dental anxiety levels at a kindergarten and at a dental clinic

Braz. oral res. (Online); 30 (1), 2016
Abstract This study evaluated the dental anxiety levels of preschool children at a kindergarten and at a dental clinic. The anxiety levels of ninety 4-6-year-old (4.99 ± 0.81) preschool children were evaluated according to pulse rates, the facial image scale (FIS), the Venham picture test (VPT), and the...

Effect of new innovative restorative carbomised glass cement on intrapulpal temperature rise: an ex-vivo study

Braz. oral res. (Online); 30 (1), 2016
Abstract This study aimed to evaluate the temperature changes that occurred in the pulp chamber when using GCP Glass Carbomer Fill (GCP) and two different resin-modified glass-ionomer (RGI) restorative materials at different dentin thicknesses. A standardized Class I occlusal cavity with 1 mm or 2 mm den...

Antimicrobial activity and substantivity of Uncaria tomentosa in infected root canal dentin

Braz. oral res. (Online); 30 (1), 2016
Abstract The aim of this study was to analyze the antimicrobial activity and substantivity of Uncaria tomentosa Willd DC (cat's claw, CC) in root dentin contaminated with Enterococcus faecalis. Forty-eight human premolars were contaminated with E. faecalis (ATCC 29212) and randomly divided into four grou...

Prevalência de diabetes mellitus e fatores associados em mulheres indígenas do Município de Dourados, Mato Grosso do Sul, Brasil

Resumo: O objetivo do estudo foi estimar a prevalência de glicemia capilar casual alterada, sugestiva de diabetes mellitus, e sua associação com os fatores socioeconômicos, demográficos, antropométricos e clínicos em mulheres indígenas do Município de Dourados, Mato Grosso do Sul, Brasil. Trata-...