Results: 1938

In situ effect of titanium tetrafluoride varnish on enamel demineralization

Abstract The effect of a 4% titanium tetrafluoride (TiF 4 ) varnish on enamel demineralization was evaluated. Twelve volunteers participated in this double-blind, randomized crossover study. Six enamel specimens were positioned in intraoral appliances throughout four treatment stages: 4% TiF 4 varnish (e...

Evaluation of the physicochemical properties of silicone- and epoxy resin-based root canal sealers

Abstract 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 S...

Effect of ceramic thickness, grinding, and aging on the mechanical behavior of a polycrystalline zirconia

Abstract Monolithic restorations of Y-TZP have been recommended as a restorative alternative on prosthetic dentistry as it allows a substantial reduction of ceramic thickness, which means a greater preservation of tooth structure. However, the influence of grinding and aging when using a thinner layer of...

Salivary stress biomarkers and anxiety symptoms in children with and without temporomandibular disorders

Abstract The etiology of temporomandibular disorders (TMD), which are considered as a heterogeneous group of psychophysiological disturbances, remains a controversial issue in clinical dentistry. This study aimed to evaluate whether the salivary alpha-amylase (sAA), cortisol levels, and anxiety symptoms ...

Comparison of two methods of irrigant agitation in the removal of residual filling material in retreatment

Abstract: The aim of this study was to compare the efficacy of passive ultrasonic irrigation and EasyClean for removing residual filling material in retreatment. Twenty-two maxillary lateral incisors with apical curvature were instrumented with ProTaper files and filled with Endofill using the lateral co...

Cymbopogon citratus essential oil: effect on polymicrobial caries-related biofilm with low cytotoxicity

Abstract The objective of this study was to evaluate the effects of Cymbopogon citratus essential oil and its main compound (citral) against primary dental colonizers and caries-related species. Chemical characterization of the essential oil was performed by gas chromatography/mass spectroscopy (GC/MS), ...

Effect of rewetting solutions on micropush-out dentin bond strength of new bioceramic endodontic material

Abstract 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 instrum...

Relação entre o desempenho em aritmética e a memória de trabalho fonológica em crianças

CoDAS; 29 (4), 2017
RESUMO Objetivo Comparar os resultados da Memória de Trabalho - Alça Fonológica (MTAF) em crianças com dificuldades específicas em aritmética. Método O estudo foi realizado com 30 crianças, com idade entre sete e nove anos que frequentavam a segunda ou terceira série do Ensino Fundamental da r...

Características orofaciais de idosos funcionalmente independentes

CoDAS; 29 (4), 2017
RESUMO Objetivo conhecer as características orofaciais de idosos funcionalmente independentes e analisar a associação com a idade, gênero, nível socioeconômico e estado dentário. Método estudo observacional, transversal de caráter analítico com amostra não probabilística. Foi aplicado o ins...

Perfil da fluência da fala em diferentes tarefas para indivíduos com Doença de Parkinson

CoDAS; 29 (4), 2017
RESUMO Objetivo Caracterizar o perfil da fluência da fala de indivíduos com Doença de Parkinson em diferentes tarefas de fala. Método Participaram do estudo 40 indivíduos, de 40 a 80 anos de idade, de ambos os gêneros, divididos em 2 grupos: GP (grupo pesquisa - 20 indivíduos com diagnóstico de...