Effects of three different bleaching agents on microhardness and roughness of composite sample surfaces finished with different polishing techniques

Abstract

Office-type bleaching agent containing CP was observed to be more secure for composite resins than other bleaching agents. No negative effect of glaze materials on the protection of surface roughness and hardness of composite resin was observed. <b>Key words:</b>Composite resin, bleaching, surface hardness, surface roughness.