Background: Molar incisor hypomineralization (MIH) is a qualitative developmental defect of enamel that mainly affects first permanent molars with or without the involvement of the incisors .however, not all dental schools include the content on MIH in the dental courses curricula for the undergraduate students.
Aim: this study was to determine knowledge, awareness, and perception regarding the distribution, severity, etiology, and treatment modalities of MIH among a group of dental students in Egypt.
Material and method: a validated google form questionnaire was distributed among final year dental students in different universities in Egypt, with the help of the pediatric dentistry department clinical course coordinator in each university.
Results: 624 students replied, 70.7% of the replied students were familiar with MIH and 64.9 %were aware of the clinical features of MIH, Only22.3%reported clinical ability to identify MIH, and the majority76.0% showed difficulty in differentiating between MIH and other developmental defects, regarding the etiology of MIH, the response varied among the students, as for treatment of MIH 23.3% of students use composite resin restoration &23.3%use preformed crowns,93.2% of the student suggest clinical training on MIH in their dental course.
Conclusion: dental students participating in this study showed good responses regarding the knowledge of MIH and limited response about the clinical, practice, and management of MIH.
Keywords: Molar incisor hypomineralization, dental students in Egypt MIH, knowledge.