Epidemiologic study of joined primary teeth in Finnish children

Abstract
The frequency of geminated and fused primary teeth was studied in 1141 Finnish children aged 3-4 yr. The prevalence was 0.7%. All joined teeth were found in the anterior area of the mouth. In 7 cases the diagnosis was a fusion of 2 separate teeth and in 1 case it was a gemination of a single tooth. A correlation between joined teeth in primary dentition and numerical variations of teeth in permanent dentition was noted in 3 cases.

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