Restoration of Permanent Molars Affected With Molar-incisor-hypomineralization (MIH) Among a Group of Egyptian Children Using Composite Restorations or Preformed Metal Crowns

Restoration of Permanent Molars Affected With Molar-incisor-hypomineralization (MIH) Among a Group of Egyptian Children Using Composite Restorations or Preformed Metal Crowns: Two-arm Randomized Controlled Trial (Part I)

The aim of this study is to compare the clinical outcome of using direct esthetic composite restorations and the use of preformed metal crowns in managing MIH cases among a group of Egyptian children.

Inclusion Criteria:

• Children with MIH 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