Have an effect different bleaching procedures on esthetic ceramic surface’s roughness

Abstract

Purpose: The purpose of this study was to evaluate the surface roughness of 3 different porcelain systems when applied home bleaching and office bleaching agents. Materials and Methods: Seventy two disc shaped were fabricated, with a diameter of 12 mm and a thickness of 2 mm from each porcelain material group1; ultra low fucing porcelain (Finesse), group 2; Lithium-disilicate based all-porcelain (IPS E-Max Press), and group3; zirconia (Zirkonzahn Prettau). The specimens were randomly further divided into two groups of 36 to evaluate the effect of 2 bleaching agents%10 Opalescence treswhite supreme gel for group a and%38 Opalescence boost gel for group b. Bleaching agents were applied to porcelain surface according to manufacturer’s instructions. For surface roughness measurement a profilometer was used. The data were analyzed by one way ANOVA and paired t test (p