Comparative Effect of Casein Phosphopeptide Amorphous Calcium Phosphate and Resin Infiltrant on Brown Spot Color Parameters after Using 20% Carbamide Peroxide

Abstract

Background and Aim: Tooth-colored restorations are the current strategy for treatment of aesthetically unpleasant brown spots (BSs). Considering the importance of conserva-tive dentistry, this study aimed to assess the effect of resin infiltrant (RI) and casein phosphopeptide amorphous calcium phosphate (CPP-ACP) after the application of 20% carbamide peroxide (CP) on BS color parameters in the esthetic zone. Materials and Methods: This experimental study was conducted on 70 extracted sound human teeth with BSs. The specimens were first subjected to the application of 20% CP and were then randomly divided into two groups of CPP-ACP and RI. Specimens were subjected to colorimetry before the intervention, after bleaching and after the application of RI or CPP-ACP using a spectrophotometer. Data were statistically analyzed using SPSS version 20, paired t-test, independent t-test and repeated measures ANOVA with P0.05) howev-er, the L* significantly increased (p0.05). Com-parison of the two groups revealed that only the color change (ΔE) during the bleaching procedure was significant (p0.05). Conclusion: Based on the results, aesthetically unpleasant BSs on teeth may be treated using a bleaching agent along with RI or CPP-ACP. RI seems to have a superior efficacy in increasing the translucency compared to CPP-ACP.

Keywords

• Spectrophotometry
• Tooth discoloration
• Esthetics
• Dental
• Carbamide peroxide
• Casein phosphopeptide amorphous calcium phosphate