Hypohidrotic ectodermal dysplasia (HED).

Hypohidrotic Ectodermal Dysplasia (HED) is a hereditary congenital disorder of ectodermal origin. It is characterized by lack of sweat glands (hypohidrosis), nail dystrophy(onychodysplasia), alopecia (hypotrichosis), defective palms and soles (palmoplantar hyperkeratosis) and the oral presentations of partial absence of teeth (hypodontia) or complete absence of teeth (anodontia). Hypodontia of primary and permanent dentition is one of the most frequently occurring oral symptoms in HED patients. These features of poor aesthetic affect the social and the psychological well-being of the patient. This case report describes the prosthetic rehabilitation of a HED patient.