Results: 236

Force decay and discoloration of thermoplastic and thermoset orthodontic elastomeric chains

Braz. dent. sci; 25 (1), 2022
Objective: Elastomeric chains are commonly used to apply force for orthodontic dental movements. However, force decay and discoloration are two important weak points of these materials. The present study intended to compare the force decay and color stability of different types of elastomeric chains. Mat...

The Effect of Coloring Beverages on Color Stability of Hybrid Ceramics with Different Surface Treatments

ABSTRACT Objective To assess the effects of coloring beverages on the color stability of two types of hybrid ceramics with different surface treatments. Material and Methods 180 specimens of two hybrid ceramics (Vita Enamic and Mazic Duro) and a feldspathic ceramic (Vita Mark II) were prepared (n=60 in...

Os efeitos do racismo na saúde mental das militantes negras do MMNDS

Psicol. ciênc. prof; 42 (), 2022
A presente produção versa sobre as consequências do racismo na saúde mental das mulheres negras integrantes do Movimento de Mulheres Dandara do Sisal (MMNDS), atuante no Território do Sisal, na Bahia. A intersecção de raça e gênero fomentou a organização do movimento, já que o gênero influi ...

Consensos em discursos sobre a violência policial: o posicionamento de estudantes universitários

Psicol. ciênc. prof; 42 (), 2022
Este artigo teve como objetivo analisar se a cor da pele do imigrante (negro ou branco) influencia as justificativas para a tomada de posição frente a uma situação de violência policial cuja vítima era um imigrante suspeito de tráfico de drogas. Participaram do estudo 300 estudantes universitário...

Retinografia como forma de rastreio de retinopatia diabética em hospital terciário do Sistema Único de Saúde

Rev. bras. oftalmol; 81 (), 2022
RESUMO Objetivo Avaliar o impacto da triagem de retinopatia diabética de paciente diabéticos realizada com retinografia colorida. Métodos Estudo retrospectivo, de caráter descritivo, avaliando laudos de retinografias realizadas desde a implementação do protocolo da triagem de retinopatia diabé...

Superficial effects of different finishing and polishing systems on the surface roughness and color change of resin-based CAD/CAM Blocks

Odovtos (En línea); 23 (3), 2021
ABSTRACT: CAD/CAM blocks are widely used in dental restorations around the world. This study aimed to investigate the effects of different polishing and finishing systems on surface roughness and color change of resin-based CAD/CAM blocks. In this study, material samples of 2×7×12mm were prepared. In t...

Effect of whitening mouth rinses on the chemical and physical properties of a nanofilled composite

Braz. j. oral sci; 20 (), 2021
Aim: This study analyzed the effect of whitening mouth rinses on water sorption (WS), solubility (SL), color change, and surface roughness of a nanofilled composite. Whitening perceptibility and acceptability (WID) were also studied. Methods: Forty specimens of Filtek Z350XT, shade EA2 were produced and ...

Comparison of color difference and reliability of two intraoral spectrophotometers

Braz. j. oral sci; 20 (), 2021
Aim: to evaluate the intra and inter-device reliability of two intraoral spectrophotometers in measuring the Commission Internationale de l’Éclairage (CIE) L*a*b* color coordinates and to compare the color difference (ΔE) between both devices. Methods: the central region of the labial surface of the ...

Analysis of color differences between identical tooth shades obtained by a spectrophotometer

ABSTRACT: Introduction. One of the most frequently used color analysis system is the Vita 3D Master toothguide. No study has evaluated if there are color differences between the same Vita 3D Master shades obtained from natural teeth, which could determine changes in the color selection. Objective. To det...

Leite humano ordenhado cru: verificação da cor
Raw expressed human milk: color check

Esta Norma Técnica tem por objetivo estabelecer os critérios para verificação do leite humano ordenhado cru no que se refere à sua coloração, visando a garantia da qualidade em Bancos de Leite Humano e sua certificação....