The effect of bleaching on surface roughness and gloss of different CAD/CAM ceramic and hybrid ceramic materials.

Objective: To assess the effect of bleaching on surface roughness and gloss of different CAD/CAM ceramic materials.

Methods: The ceramic materials included IPS e.max CAD (lithium disilicate), VITA ENAMIC (polymer infiltrated ceramic), and Celtra Duo CAD (zirconia reinforced lithium silicate).