Effect of Extent of White Spot Lesions on the Esthetic Outcome After Treatment by the Resin Infiltration Technique: A Clinical Trial

Sima  Gholami; Alireza  Boruziniat; Atoosa  Talebi; Yasaman  Yazdandoust

doi:10.18502/fid.v20i40.13926

Sima Gholami Department of Restorative and Cosmetic Dentistry, School of Dentistry, Mashhad University of Medical Science, Mashhad, Iran
Alireza Boruziniat Dental Research Center, Department of Restorative and Cosmetic Dentistry, School of Dentistry, Mashhad University of Medical Science, Mashhad, Iran
Atoosa Talebi Department of Restorative and Cosmetic Dentistry, School of Dentistry, Mashhad University of Medical Science, Mashhad, Iran
Yasaman Yazdandoust Dental Research Center, School of Dentistry, Mashhad University of Medical Science, Mashhad, Iran.

DOI: https://doi.org/10.18502/fid.v20i40.13926

Keywords: Dental Caries; Dental Enamel; Color

Abstract

Objectives: This study aimed to assess the effect of extent of white spot lesions (WSLs) on the esthetic outcome (masking effect and durability) for 6 months after treatment by the resin infiltration technique.

Materials and Methods: In this clinical trial, 79 teeth with WSLs in 18 patients were selected. The lesions were assigned to localized and generalized groups, and were all treated by resin infiltration. The color of WSLs was assessed at baseline, immediately after treatment, and 1, 3, and 6 months after treatment by using Easy Shade spectrophotometer and taking standard digital photographs. The surface area of WSLs was calculated on the photographs using MIP4Student software. Repeated Measures ANOVA was used to compare color change (∆E), and the Pearson’s correlation test was applied to analyze the association between the extent of lesions and ∆E (alpha=0.05).

Results: A significant difference was found between the two groups in ∆E at different time points (P<0.05). Also, in both localized and generalized lesions, the pretreatment ∆E was significantly different from the ∆E values at different time points after treatment (P<0.001). However, the post-treatment ∆E values were not significantly different (P>0.05). The Pearson test showed an inverse correlation between the extent of lesions and ∆E (P<0.05).

Conclusion: The resin infiltration technique is successful in masking the WSLs, with a durability of at least 6 months. Color correction by this technique is more favorable in localized lesions.