Restoration Quality in Molars Affected by Molar Incisor Hypo Mineralization

Inclusion Criteria: .Children with molar incisor hypo mineralization in one fully erupted molar or more. * Age ranging from 7-12 years. * Cooperative children * Good general health Exclusion Criteria: * Patients participating in other experiments .Patients with parents planning to move away within the following year. * Patients with only mildly affected MIH molars that do not require extensive restorative treatment. * MIH-affected molars that have a very poor prognosis and require extraction. * First permanent molars that are affected with other developmental defects, such as hypoplasia, dental fluorosis or amelogenesis imperfecta.