Abstract
A boy,6 years and 11 months old, was diagnosed as having partial anodontia accompanied by congenital ectodermal dysplasia, and the following findings were obtained.
1. Systemic symptoms including hypohidrosis, protuberant lips, atrophic rhinitis, and atopic dermatitis were observed.
2.A total of 15 teeth consisting of 5 deciduous teeth, _??_, and 10 permanent teeth, _??_, were congenitally absent.
3.Concerning oral cavity findings,malformed crowns were observed in _??_and _??_.
4. Retarded eruption and retarded root growth of the permanent teeth were observed.
5. Growth of the alveolar bone was poor in the area where the teeth were absent.
6. Although the upper part of the face was underdeveloped, growth of the mandible was nearly normal. The extent of the growth of both the maxilla and the mandible was below standard.
