Results: 22

In-Vitro silanization of dental enamel to prevent demineralization

Odovtos (En línea); 24 (1), 2022
Abstract Caries is a multifactorial disease that can negatively affect dental tissues through the demineralization process, which produces acids deriving from the metabolism of carbohydrates. Some strategies to prevent this process have been proposed, such as topical fluoride application, resin-based res...

Effect of commercial silanes on bond strength of resin cement to lithium disilicate ceramic

Biosci. j. (Online); 36 (1), 2020
The aim of this study was to evaluate the effect of different commercial silanes on microshear bond strength of resin cement to lithium disilicate ceramic. Twenty ceramic samples with 10 mm in length, 10 mm wide and 3 mm in thickness were fabricated, etched with 10% hydrofluoric acid for 20...

Resistência de união de primers/silanos em superfície de cêramica vítrea

Objetivo: investigar a resistência de união por cisalhamento de diferentes soluções contendo silano e primer na superfície de Dissilicato de Lítio (IPS e.maxCAD, Ivoclar-Vivadent). Metodologia: 78 blocos cerâmicos foram incluídos em resina acrílica, polidos e lavados em ultra-som por 10 minutos....

Avaliação do efeito de diferentes tratamentos de superfície e tipo de material adesivo na resistência de união de reparo de resina bulk fill envelhecida

O objetivo do presente estudo foi avaliar o efeito da asperização com ponta diamantada e o jateamento com óxido de alumínio (Al2O3) como tratamentos de superfície e diferentes protocolos adesivos, associados ou não ao uso do silano, no reparo da resina composta do tipo bulk fill envelhecida. Cento ...

Does use of silane-containing universal adhesive eliminate the need for silane application in direct composite repair?

Abstract This in vitro study aimed to evaluate the effect of a silane-containing universal adhesive used with or without a silane agent on the repair bond strength between aged and new composites. Forty nanohybrid composite resin blocks were stored in distilled water for 14 d and thermo-cycled. Sandpaper...

Different bonding agents effect on adhesive bond strength: lithium disilicate glass ceramic

Introduction: The silanization of the ceramic surface prior to applying the adhesive and/or resinous materials plays an important role in bond strength. Nowadays, a new family of adhesive systems has been introduced into the market, aiming to simplify the technique of adhesive procedures during cementati...

Hydrofluoric acid concentration, time and use of phosphoric acid on the bond strength of feldspathic ceramics

Abstract The objective of this study was to evaluate the influence of hydrofluoric acid (HF) concentration, etching time, and application of phosphoric acid (PA) followed by neutralization with sodium bicarbonate on the bond strength between a feldspar ceramic and resin cement. Thus, 80 blocks (10 x 12 x...

Effect of different surface treatments and multimode adhesive application on the Weibull characteristics, wettability, surface topography and adhesion to CAD/CAM lithium disilicate ceramic

J. appl. oral sci; 28 (), 2020
Abstract This paper aims to evaluate the effect of different surface treatments on surface topography, wettability, and shear bond strength of resin cement to glass ceramic. Methodology: For SBS test, 32 blocks (7x7x2 mm) of lithium disilicate were obtained and randomly divided into eight groups (four b...

Effect of hydrofluoric acid concentration and thermal cycling on the bond strength of brackets to ceramic

Braz. dent. j; 30 (6), 2019
Abstract This study to evaluate the effects of different hydrofluoric acid (HF) concentrations and thermal cycling on the shear bond strength (SBS) of brackets to ceramic. Cylinders of ceramic were divided into 10 groups (n=15), according to HF concentrations: 1-1%;2-2.5%;3-5%;4-7.5%;5-10% (storage 24 h)...

Effect of self-etching primer associated to hydrofluoric acid or silane on bonding to lithium disilicate

Braz. dent. j; 30 (2), 2019
Abstract To evaluate the effect of combining 5% hydrofluoric acid (HF) and silane (SI) with the self-etching ceramic primer on the immediate and after 1-year of water storage on bonding efficacy, conditioning pattern (CP) and chemical interaction (CI) to the lithium disilicate. A total of 16 CAD/CAM bloc...