Comparison of Two Minimally Invasive Approaches for Masking Molar-Incisor Hypomineralization Opacities

Molar-incisor hypomineralization (MIH) is a qualitative enamel defect that often leads to esthetic concerns, particularly in anterior teeth. Minimally invasive treatment approaches such as resin infiltration and etch-bleach-seal techniques have been proposed to improve the appearance of MIH opacities. This study aimed to compare the effectiveness of these two approaches in masking MIH opacities in permanent incisors and to evaluate esthetic perceptions from both children and their parents. Esthetic perceptions related to dental appearance were evaluated using the ''Child's and Parent's Questionnaire about Teeth Appearance''. The color masking effectiveness of resin infiltration and the etch-bleach-seal (EBS) technique on MIH-related anterior enamel opacities were evaluated using a spectrophotometer (VITA Easyshade® V, Sackingen, Germany). The findings are expected to contribute to evidence-based decision-making for minimally invasive esthetic management of MIH.