Results: 110

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 glazing application side and mechanical cycling on the biaxial flexural strength and Weibull characteristics of a Y-TZP ceramic

J. appl. oral sci; 28 (), 2020
Abstract Glaze application on monolithic zirconia (Y-TZP) can be a practical approach to improve the mechanical properties of this material. Objective Our study evaluated the effect of glazing side and mechanical cycling on the biaxial flexure strength (BFS) of a Y-TZP. Methodology Eighty sintered Y-...

Repair Protocol of Porcelain Laminate Veneers Through Reattachment of the Fractured Ceramic Piece: A Technical Report

Braz. dent. sci; 23 (3), 2020
This technical report has been developed to repair the ceramic laminate veneer without removing after fracture. The bonding between the tooth and the laminate veneer is very strict, thus removing the restoration is difficult. The disadvantages such as the loss of tissue from the toot...

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...

Shear bond strength of composite repair system to bilayered zirconia using different surface treatments (in vitro study)

Braz. dent. sci; 23 (1), 2020
Objective: the study is aimed to evaluate the effect of different surface treatment methods on shear bond strength between composite repair system and both of zirconia core and veneering porcelain and analyze the mode of failure between composite repair and ceramic surface. Material and methods: 40 Ceram...

Harmonização do sorriso com laminados cerâmicos: relato de caso

Rev. Ciênc. Plur; 6 (3), 2020
Introdução: Os padrões de beleza atuais aumentaram o nível de exigência estética e a busca por sorrisos cada vez mais harmônicos. As facetas cerâmicas destacam-se dentre as opções de tratamentos por associarem estética, longevidade e previsibilidade. Objeti...

Reinforced glass-ceramics: parametric inspection of three-dimensional wear and volumetric loss after chewing simulation

Braz. dent. j; 30 (5), 2019
Abstract The aim of this study was to investigate the three-dimensional wear, volumetric loss and surface roughness after chewing simulation of two glass ceramics. Lithium disilicate (LD, Emax CAD, Ivoclar) and Zirconia reinforced lithium silicate (ZLS, Vita Suprinity, Vita Zhanfabrick) discs (n=20/g) we...

Influence of pre-heating regular resin composites and flowable composites on luting ceramic veneers with different thicknesses

Braz. dent. j; 30 (5), 2019
Abstract The aim of this study was to evaluate of pre-heating, filler contents and ceramic thickness on film thickness, microshear bond strength, degree of conversion and color change on ceramic veneers. Two experimental composites were prepared (Bis-GMA/UDMA/BisEMA/ TEGDMA), with different amounts of fi...

Restorative possibilities using zirconia ceramics for single crowns

Braz. dent. j; 30 (5), 2019
Abstract Two clinical cases are presented to explore technical differences and discusses the advantages and disadvantages of using veneered or monolithic zirconia to manufacture posterior single crowns. The first case describes the clinical steps in manufacturing a monolithic crown on a mandibular left s...

The wear performance of glazed and polished full contour zirconia

Braz. dent. j; 30 (5), 2019
Abstract This study evaluated the influence of zirconia surface finishes on the wear of an enamel analogue. 40 zirconia discs were divided into four groups: control (without finish); glazed; polished; polished and glazed. All samples were subjected to wear against steatite antagonists. The specimens unde...