Results: 304

Tratamentos superficiais de sistemas cerâmicos para união a cimentos resinosos

RFO UPF; 23 (1), 2018
Objetivo: apresentar uma revisão de literatura sobreos tipos de tratamentos de superfície disponíveis paracimentação adesiva a sistemas cerâmicos. Revisãode literatura: ainda que haja certo consenso na uniãoadesiva às vitrocerâmicas, ainda não há uma unanimidadequanto à adesão de cerâmicas...

Oval versus circular-shaped root canals: bond strength reached with varying post techniques

Braz. dent. j; 29 (4), 2018
Abstract The aim of this study was to compare the bond strength (BS) of glass fiber posts (GFP) luted to oval and circular-shaped root canals rehabilitated using varying post techniques, at different intraradicular levels. Ninety 16-mm-long roots of human mandibular premolars, classified either as having...

In vitro comparison of the immediate adhesive strength in dentin of three universal adhesive systems

J. oral res. (Impresa); 7 (5), 2018
Objective: to compare the adhesive strength in dentin of three universal adhesive systems in vitro by means of the shear test. materials and methods: seventy-five bovine teeth were selected and cut. dentin was exposed from the buccal surface of the crowns with 220 grit sandpaper, and samples were then in...

Effect of dentin preparation mode on the bond strength between human dentin and different resin cements

Braz. dent. j; 29 (3), 2018
Abstract The aim was to evaluate the influence of different dentin preparation mode in the smear layer characteristics (SL), hybrid layer (HL), and microtensile bond strength (µTBS) to dentin with two resin cements. The occlusal dentin of 120 third molars was exposed. The teeth were divided into 4 group...

Can the application of multi-mode adhesive be a substitute to silicatized/silanized y-tzp ceramics?

Braz. dent. j; 29 (3), 2018
Abstract This study evaluated the effectiveness of a multi-mode adhesive (SBU-Scotch Bond Universal/3M) as a substitute for silica coating and silane application on the bonding of zirconia ceramics to resin cement. One-hundred and twenty sintered zirconia ceramic blocks (5 x 5 x 5 mm) were obtained, fini...

Feldspar ceramic strength and the reinforcing effect by adhesive cementation under accelerated aging

Braz. dent. j; 29 (2), 2018
Abstract This study evaluated the effect of the accelerated artificial aging (AAA) on feldspar ceramic strength and the reinforcing effect promoted by adhesive cementation with resin luting agent. One hundred twenty feldspar ceramic disks were obtained. Sixty disks were acid-etched, silanized, and coated...

Bond Strength and Cytotoxicity of a Universal Adhesive According to the Hybridization Strategies to Dentin

Braz. dent. j; 29 (1), 2018
Abstract This study evaluated application protocol (etch-and-rinse/ER and self-etching/SE) and dentin wettability (wet and dry) on microtensile bond strength (μTBS) and transdentinal cytotoxicity of ScotchbondTM Universal (SU) adhesive system. The μTBS values and fracture mode were registered 2...

Evaluation of shear bond strength and shear stress on zirconia reinforced lithium silicate and high translucency zirconia

J. oral res. (Impresa); 7 (1), 2018
This study evaluated the shear stress distribution on the adhesive interface and the bond strength between resin cement and two ceramics. For finite element analysis (FEA), a tridimensional model was made using computer-aided design software. This model consisted of a ceramic slice (10x10x2mm) partially ...

Técnica alcoólica simplificada para a cimentação de pinos intrarradiculares pré-fabricados

Pinos de fibra de vidro têm ganhado popularidade devido o módulo de elasticidade próximo ao da dentina, estética e adesão. Contudo, a degradação do sistema adesivo e cimento apresenta-se como uma desvantagem do conjunto pino-cimento-dentina. Assim, a técnica alcoólica foi desenvolvida com a fina...