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.