The effect of various commercially available bleaching agents on the microshear bond strength of composite resin to enamel

Vital teeth tend to present color changes that compromise esthetics substantially. These discolorations can be extrinsic or intrinsic according to the location and the cause of the stain. Many dentists have indicated the treatment of intrinsic discolorations with bleaching agents. Thanks to innovations in bleaching agents, tooth whitening has become more and more popular among dental professionals and patients. The most common treatment for intrinsic discoloration is bleaching with hydrogen peroxide, which includes professionally administered (in office), professionally dispensed (custom tray based) and self directed (over-the-counter) bleaching. For in office bleaching, 30 to 35% hydrogen peroxide was used and monitoring was required by the dentists. Therefore the professionally dispensed bleaching, The effect of various commercially available bleaching agents on the microshear bond strength of composite resin to enamel