Clinical Evaluation of Resin Infiltration Treatment of MIH-affected Teeth in Pediatric Patients

The goal of this clinical trial is to examine the clinical success of different pre-treatments in resin infiltration therapy applied to the incisors of pediatric patients with Molar Incisor Hypomineralization (MIH) and to evaluate the impact of treatment on the quality of life of children. The main questions that this study aims to answer are: * Does resin infiltration therapy improve the color and surface appearance of incisors affected by MIH? * Is there a reduction in tooth sensitivity after treatment? * Are patients and their parents satisfied with the treatment results? * Is there an improvement in the quality of life of children after treatment? Researchers will apply resin infiltration therapy to incisors affected by MIH and evaluate the results over a 12-month follow-up period. Participants will: * Receive resin infiltration therapy on their MIH incisors. * Attend follow-up appointments at 1, 3, 6, 9, and 12 months. * At the follow-up appointments, the teeth will be evaluated with clinical examination and photographs. * Participants will complete questionnaires regarding tooth sensitivity and quality of life related to oral health. The results of this study are expected to contribute to the development of minimally invasive treatment options for children with MIH.