Effects of some bleaching systems on the surface roughness of esthetic restorative materials

Home bleaching agents should not be used randomly when composite resin restorations are present. The patient must also realize that restorations frequently must be replaced to ensure proper shade matching if bleaching is successful. Finally, if posterior composite resin restorations are present, the patient should be instructed to be careful to confine the bleaching gel to the anterior segment of the tray