PEDIATRICS Vol. 32 No. 6 December 1963, pp. 1087-1093
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NATAL AND NEONATAL TEETH

Folklore and Fact

Jessie Bodenhoff D.D.S.1 and Robert J. Gorlin D.D.S.2

1 Department of Oral Diagnosis, Royal Dental School, Copenhagen, Denmark
2 The Department of Oral Pathology, School of Dentistry, University of Minnesota, Minneapolis, Minnesota

The occurrence of natal and/or neonatal teeth is a rare anomaly, which for centuries has been associated with diverse superstitions among many different ethnic groups. The incidence of natal and/or neonatal teeth is far more frequent than previously supposed. Review of 359 recorded cases suggests an incidence of at least 1 in 3,000 births. Natal teeth are more frequent than neonatal teeth, the ratio being approximately 3 to 1. Rarely, a child will exhibit both natal and neonatal teeth. There appears to be no sex preference. Most frequently (ca. 85% of the cases), the natal or neonatal teeth are the deciduous mandibular incisors. In almost 90% of the cases, the teeth are of the normal deciduous complement. The rest are supernumerary. In about 60% of the cases, both of the natal and/or neonatal mandibular incisors erupt prematurely. Occasionally, a child may be born with a considerable number of his deciduous teeth erupted. Several such cases have been cited. About 70% of the natal and/or neonatal teeth are firmly fixed but a small number subsequently become loose. Similarly, a small fraction of those initially loose become fixed. Though the etiology is not known, approximately 15% had parents, siblings, or other near relatives with a history of natal and/or neonatal teeth. In several well-documented cases, the inheritance pattern has been that of an autosomal dominant trait. Three syndromes have been associated with natal teeth: (a) chondroectodermal dysplasia or Ellis-van Creveld syndrome, (b) oculo-mandibulo-dyscephaly with hypotrichosis or Hallermann-Streiff syndrome, and (c) pachyonychia congenita or Jadassohn-Lewandowski syndrome. Natal teeth may also be associated with cleft lip, cleft palate and cyclopia. Histologic investigation has revealed a failure of root formation despite eruption, a large vascular pulp, irregular genesis of dentin and a failure of cementum formation.

Submitted on April 16, 1963
Accepted on June 6, 1963