My watch list  


Classification & external resources
ICD-10 K00.0
ICD-9 520.0

In dentistry, hypodontia is the condition of naturally having fewer than the regular number of teeth. Hypodontia explains a situation when there is a missing number of 6 teeth or less. The condition of missing over 6 teeth is called oligodontia.

In whites, the most commonly missing teeth are the wisdom teeth (25-35%), the upper lateral incisors (2%) or the lower second premolars (3%). The congenital absence of all teeth is called anodontia.

Hypodontia is often familial, or associated with ectodermal dysplasia or Down syndrome.

A similar condition is hyperdontia, in which there are more than the usual number of teeth.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Hypodontia". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE