EVALUATION OF THE EFFECTIVENESS OF DIFFERENT RESTORATIVE APPROACHES IN PATIENTS WITH MOLAR INCISOR HYPOMINERALIZATION: A TWELVE-MONTH FOLLOW-UP

Abstract

Molar Incisor Hypomineralization (MIH) is a systemic enamel developmental defect characterized by enamel opacities affecting one or more permanent first molars, with or without the involvement of one or more incisors. The major challenge in restorative treatment is related to the adhesion of adhesive systems to the MIH-affected dental substrate. This study aims to report different approaches to restorative treatments that were adopted for teeth affected by MIH in the same patient. A 14-year-old male caucasian patient came to the Odontoclínica Central da Marinha (OCM, Marinha do Brasil, Rio de Janeiro, Brazil) with complaints of dental sensitivity and esthetics presented extensive opaque white, beige, and brown stain on the upper right incisor and upper right and left first molars. Both molars were previously restored and the left molar was infiltrated by caries. The rapid progression of this condition prompted the replacement of restorations, emphasizing the importance of continuous monitoring. Conservative direct composite resin restorations with intact enamel margins, as seen in upper right incisor, prove defective after 12 months of follow-up.Cavities, where the MIH lesion was not completely removed from the margin, had unsuccessful restorations and required re-intervention, with replacement of deficient restorations in upper right and left first molars after removal of affected enamel. This case highlights the importance of clinical knowledge and correct diagnosis of MIH lesions.