The aim of the current study is to assess the prevalence of molar incisor malformation in Fayoum-Egypt.

Localized developmental radicular dysplasia is a rare finding. This radicular formation arrest may be due to traumas, infections, radiation therapy, chemotherapy, or idiopathic.

Molar Incisor Malformation is a condition characterized by arrested or altered radicular development of first permanent molars. Roots may be thin, short, or totally missing. In some patients, there are constrictions located in the cervical part of the crown of the permanent incisors. There are also cases where the roots of the second primary molars are affected.

MIM could also have been mistaken for a consequence of severe root resorption, or dentine dysplasia prior to its initial description.

This unique deformity, regardless of its nomenclature, presents previously undescribed clinical features and it is quite difficult to get a successful conservative treatment result.

The aim of the current study is to assess the prevalence of this rare condition in Fayoum-Egypt.

Inclusion Criteria:

• Panoramic radiographs for older than nine-year-old patients, having completely developed first permanent molars

Exclusion Criteria:

• Panoramic radiographs with missing first permanent molars or pathological lesions which may cause root resorption

panoramic radiographic images from a private dental radiology center in Fayoum Egypt