Effect of chemical aging on color stability and surface properties of stained all-ceramic restorations.

Objectives: To study the effect of artificial aging on color stability, translucency, and surface roughness of stained all-ceramic restorations.

Materials And Methods: Disc-shaped specimens were fabricated from six different all-ceramic materials: two glass ceramics (Vita Mark II and Empress CAD), two lithium disilicate based ceramics (e.max and Suprinity), and two zirconia-based materials (ZirCAD LT and ZirCAD MT Multi).