Aesthetic Efficacy of Resin Infiltration Using Different Conditioning Methods: 24-Month Results

Objective: To assess color and fluorescence changes in white spot lesions (WSLs) using different surface conditioning methods prior to resin infiltration: 24-months follow-up Methods: Thirty patients with each at minimum four WSLs after bracket debonding were included. After baseline fluorescence and color measurements, the lesions were randomly divided into four groups (n = 30): G1 (control): regular brushing, G2: 15% HCl gel (Icon Etch), G3: 37% H3PO4 gel (Scotchbond Etchant), G4: Er:YAG laser (Fotona AT Fidelis III). The lesions were desiccated with Icon Dry and then Icon Infiltrant (DMG) was applied. In the treatment groups, color and fluorescence were examined at baseline (T0), just after the resin infiltration treatment (T1), and after 6 (T2) and 24 months (T3). In the control group, the examinations were performed at baseline (T0) and after 6 (T2) and 24 months (T3).