Post-cementation colorimetric evaluation of the interaction between the thickness of ceramic veneers and the shade of resin cement.

Abstract

The ΔE values ranged from 2.46 (1.0 mm, opaque cement) to 12.11 (0.5 mm, A1 cement). The opaque cement showed the lower ΔE values, followed by the bleach, transparent and A1 cements. With respect to the thickness of the ceramic, color differences between the target color and the group with 1.0 mm ceramic disks were smaller for all cement shades tested. Only the combination of 1.0 mm ceramic disks cemented with the opaque cement was able to mask the background color (ΔE < 3.7). The color differences between the control and the specimens cemented with opaque resin cement were smaller in comparison with the bleach, transparent and A1 cements.