Resin Infiltration Versus Microabrasion With CPP-ACP for Fluorotic White Spot Lesions

Dental fluorosis can cause visible chalky-white spots on the front teeth. These white spot lesions may affect dental appearance even when the tooth surface is intact. This randomized clinical trial compared two minimally invasive approaches for masking fluorotic white spot lesions on permanent anterior teeth. Eligible teeth were randomly assigned to receive either resin infiltration or enamel microabrasion followed by application of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP). The main outcomes were the color difference between the white spot lesion and the surrounding sound enamel and the proportion of the visible tooth surface occupied by the lesion. These outcomes were evaluated from standardized clinical photographs before treatment, after treatment, and during follow-up through 6 months.