Influence of the composition and shades of ceramics on light transmission and degree of conversion of dual-cured resin cements.

Objective: Since the transmittance of ceramics can influence the degree of conversion (DC) of resin cements, ceramics composition and shade should be considered in the selection of resin cement. This in vitro study aimed to evaluate the effect of the transmittance of different composition, opacities and shades of ceramics on the degree of conversion of two dual-cured resin cements.

Methodology: Sixty discs were prepared from low translucency (LT) and medium opacity (MO) lithium disilicate ceramic, and zirconia ceramic (Z).

Effects of the type and thickness of ceramic, substrate, and cement on the optical color of a lithium disilicate ceramic.

Statement Of Problem: Reproducing the characteristics of natural teeth in ceramic crowns remains a complex and difficult process.

Purpose: The purpose of this in vitro study was to evaluate the effect of the substrate, cement, type, and thickness of the ceramic on the resulting color of a lithium disilicate ceramic.

Material And Methods: Forty ceramic disks were prepared from IPS e.