Anomalies of tooth numbers including peg-shaping

Finn, S.B.

Birth Defects Original Article Series 7(7): 185-193

1971


ISSN/ISBN: 0547-6844
PMID: 5173204
Document Number: 31179
The congenital defects of hypodontia, peg-shaped teeth and hyperdontia appear to have a genetic basis. Peg-shaping is a modified expression of the same genotype as hypodontia. The defect is inherited as a dominant autosomal trait with variable expressivity. Third molars are the most frequently missing teeth. Both hypodontia and hyperdontia are found in a number of well-defined genetic syndromes and in most instances are common characteristics of the disease.

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