Effect of Coffee Thermocycling on Color Stability and Translucency of CAD-CAM Polychromatic High Translucent Zirconia Compared With Lithium Disilicate Glass Ceramic.

Aims And Objectives: To evaluate the effect of coffee thermocycling on color stability and translucency of CAD-CAM polychromatic high translucent zirconia compared with lithium disilicate glass ceramic.

Methods: Sixteen rectangular plates (14 × 16 × 1.0 mm) of two ceramic materials (IPS E.

Wear of human enamel opposing monolithic zirconia, glass ceramic, and composite resin: an in vitro study.

Statement Of Problem: Demand is increasing for ceramic and composite resin posterior restorations. However, ceramics are recognized for their high abrasiveness to opposing dental structure.

Purpose: The purpose of this study was to investigate the wear of enamel as opposed to dental ceramics and composite resin.