Results: 16

Influence of resin-modified glass ionomer and topical fluoride on levels of Streptococcus mutans in saliva and biofilm adjacent to metallic brackets

J. appl. oral sci; 25 (2), 2017
Abstract Decalcification of enamel during fixed orthodontic appliance treatment remains a problem. White spot lesions are observed in nearly 50% of patients undergoing orthodontic treatment. The use of fluoride-containing orthodontic materials has shown inconclusive results on their ability to reduce dec...

Degree of conversion and bond strength of resin-cements to feldspathic ceramic using different curing modes

J. appl. oral sci; 25 (1), 2017
Abstract Resin cements have led to great advances in dental ceramic restoration techniques because of their ability to bond to both dental structures and restorative materials. Objective The aim of this study was to assess the performance of resin cements when different curing modes are used, by evalua...

Influência da erosão dentária na adesão de braquetes ortodônticos colados ao esmalte com diferentes materiais

O diagnóstico das lesões incipientes de erosão em esmalte é difícil de ser realizado e, em situações clínicas, poderá ocorrer a colagem de braquetes em superfícies erodidas. Este trabalho in vitro avaliou a adesão de braquetes ortodônticos ao esmalte dentário bovino hígido e previamente ero...

Four chemical methods of porcelain conditioning and their influence over bond strength and surface integrity

OBJECTIVE: To assess four different chemical surface conditioning methods for ceramic material before bracket bonding, and their impact on shear bond strength and surface integrity at debonding.METHODS: Four experimental groups (n = 13) were set up according to the ceramic conditioning method: G1 = 37% p...

Effect of bleaching agent on dental ceramics roughness

Acta odontol. latinoam; 23 (3), 2010
The aim of this study was to assess the effect of bleaching agents (10% and 16% carbamide peroxide) on the roughness of two dental ceramics in vitro, and to analyze the surface by scanning electronic microscopy (SEM). Two bleaching agents (10% and 16% / Whiteness, FGM Gel) and two microparticle feldspath...

O topázio brasileiro como dosímetro: estudos preliminares das propriedades termoluminescentes
Brasilian topaz as a dosimeter: Prleliminary study of thermoluminescence properties

Apresentamos os resultados iniciais do estudo das propriedades termoluminescentes do topázio brasileiro visando o uso para fins dosimétricos. Os dados obtidos até o presente momento indicam a viabilidade do uso do topázio como dosímetro na faixa de 20mGy a 20Gy....