Effects of Colgate Platinum Professional Toothwhitening System on microhardness of enamel, dentin, and composite...

The purpose of this study was to evaluate the effect of Colgate Platinum Professional Toothwhitening System on the microhardness of enamel, dentin, and two composite resins. This in vitro study replicated conditions in the oral cavity and followed the prescribed procedure for whitening teeth. The results of this study showed no significant differences in the microhardness of the control and treated teeth or the composite restorations tested. This indicates that the use of Colgate Platinum will not soften teeth or the composite restoratives studied.