The Effectiveness of Bleaching on White Spot Lesion Treated with Resin Infiltration Technique

This study, conducted in the dental department at King Hussein Medical City in Amman, Jordan, involved twenty patients with white spot lesions treated using resin infiltration and bleaching techniques.Patients were divided into four groups: Nonbleached NB n=5, Bleached B n=5, Resin Infiltrated Nonbleached RNB n=5, and Resin Infiltrated Bleached RB n=5. Baseline color measurements were performed using a Vita shade guide. A 35% hydrogen gel was applied for 20 minutes in the B and RB groups, while resin infiltration was performed in the RNB and RB groups. Color changes (V) were calculated before and after treatment. Statistical analysis using one-way ANOVA and Tukey's test showed significant differences among groups in V values, with the NB group exhibiting the least color alteration. Results showed that resin infiltration enhanced the appearance of white spot lesions by masking them, while bleaching alone was less effective. Combining both techniques did not significantly improve outcomes compared to using resin infiltration alone. These findings suggest that while resin infiltration is beneficial for improving tooth aesthetics, its combination with bleaching may not offer additional benefits.