Abstract
The aim of this study is to investigate the bond strength and colorimetric and optical changes resulting from the photoactivation of the adhesive/cement system by transillumination of lithium disilicate ceramic veneers with different thicknesses. Discs (7.5 x 1.0 mm; N=120) of IPS e.max CAD (Ivoclar Vivadent) with medium translucency (MT) and three thicknesses (0.5, 1.0, and 1.5 mm); and …