Aim: Evaluate the roughness, microhardness and color change of different Bulk Fill resins when submitted to the condition of gastroesophageal reflux and bulimia. Methods: 60 specimens (n = 10) of Bulk-Fill composite resins were made: M1 – Filtek™; M2 – Tetric N-Ceram and M3 – OPUS, through a matr...
Resumo O presente trabalho busca analisar os efeitos do denominado "pacto narcísico" da branquitude sobre a psique dos indivíduos de cor. Esse acordo, em suma, é caracterizado por um contrato não verbal entre corpos brancos para manutenção de seus privilégios. O objetivo deste estudo é investigar...
Aim: To evaluate the influence of the parameters L* a* b* on the variation of the color of bovine tooth enamel submitted to artificial darkening, after simulated brushing, with whitening toothpastes containing blue covarine. Methods: To undertake this study in vitro, 60 specimens (SP) were divided into 6...
Aim: This study assessed the color and translucency stability of a polymer infiltrated ceramic network (PICN) and compared it with a resin composite (RC) and a feldspathic ceramic (FEL). Methods: Disc-shaped samples of a PICN (Vita Enamic), a feldspathic ceramic (Vitablocks Mark II), and a resin composit...
Aim This study aims to evaluate and validate the sensibility and the level of agreement between different gingival color measures obtained by a spectrophotometer (SPECTRO) and a photography (PHOTO) method. Methods Among 40 patients, the color was measured 2 mm apical to the gingival margin by CIE L*, ...
To try to reduce the deleterious effects of tooth whitening, bioactive materials have been used. Forty enamel/dentin blocks were stained on dark tea and randomly assigned into four groups (n=10): control group (unbleached), HP35 % (35 % hydrogen peroxide), BG45S5 (Bioglass 45S5® incorporated into HP35 %...
Introduction: Rice is a staple food in Costa Rica representing almost 24 % of the total calorie intake in the diet. Consumers have become more quality conscious about the rice consumed, so producers need to focus on the quality of rice along with production. Objective: The aim of this study was to invest...
Aim: This study aims to evaluate the surface roughness and susceptibility to staining of bleached composite resin with 22% carbamide peroxide, as well as the effect of subsequent prophylaxis with NaHCO3 powder. Material and Methods: Forty disk-shaped (2 × 6 mm) specimens of composite resin (Z250 XT) wer...
O intuito do presente estudo foi avaliar o efeito de laminados cerâmicos de dissilicato de lítio e cimentos resinosos com cor para mascarar diferentes substratos e a compatibilidade de cor das pastas try-in. Foram produzidos 120 laminados cerâmicos de dissilicato de lítio na cor B1 com 0,5 mm de espe...
Este estudo tem como objetivo avaliar a influência de um gel clareador de peróxido de carbamida à 16% (Whiteness Perfect, FGM, Joinville, SC, Brasil) associados a biomateriais (Biosilicato® ou biovidro F18®), na alteração de cor e microdureza do esmalte e dentina de dentes bovinos. Um espectrofot�...
