Restoration quality of molars affected by MIH using two different types of restorations direct composite and preformed crowns

MIH or molar incisor hypomineralization is one of the difficult clinical situations to be managed by dentists the aim of this study is to specify which is the better treatment among composite restorations and preformed crowns in terms of gingival health patient satisfaction pain hypersensetivity acceptability by the patienat hypersensetivity and the need for future retreatment

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.