[Oligodontia in 2 siblings with ectodermal dysplasia].

Oligodontia, a form of hypodontia, is commonly seen in permanent than in deciduous dentition. It is defined as the congenital absence of six or more teeth, excluding third molars. It is relatively a rare condition which occurs as an isolated finding or as part of a syndrome. The present paper shows a rare case of oligodontia with ectodermal dysplasia in 2 siblings (boys). Both the cases were associated with dental findings and extra oral findings of Ectodermal Dysplasia (ED). The prevalence, possible etiological factors and treatment options