Prevalence of hypodontia and developmental malformation of permanent teeth in Saudi Arabian schoolchildren

Br J Orthod. 1990 May;17(2):115-8. doi: 10.1179/bjo.17.2.115.


This study was carried out to determine the prevalence of hypodontia and congenital malformation in permanent teeth of Saudi Arabian male children. Five-hundred schoolchildren were investigated, selected randomly from Riyadh city. The age group of the examined sample ranged from 13 years and 6 months to 14 years and 6 months. Clinical and radiographic examinations were performed. The findings indicated that hypodontia was present in about 4 per cent of the children; most frequently affected was the mandibular second premolars, maxillary laterals, and maxillary second premolars. Tooth malformations, mainly peg-shaped upper lateral incisors were also observed in about 4 per cent of the sample.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Adolescent
  • Anodontia / epidemiology*
  • Bicuspid / abnormalities
  • Humans
  • Incisor / abnormalities
  • Prevalence
  • Random Allocation
  • Saudi Arabia / epidemiology
  • Tooth Abnormalities / epidemiology*