Effect Of 20% Bleaching Agent on Surface Roughness of Restorative Materials-An In Vitro Study

Abstract

INTRODUCTION-Bleaching is a popular and common method used to enhance the brightness of teeth, but controversial results have been documented concerning its effects on restorative materials. Bleaching is based upon hydrogen peroxide as the active agent, which may be applied directly or released by a chemical reaction from carbamide peroxide. The purpose of this study was to evaluate the effect of home-bleaching agents (20% CP) on the surface roughness of five restorative materials (composite resins, RMGIC, Miracle Mix, amalgam and ceramic) during 3-week experimental period.