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Updated: Jul 5, 2026
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Published on: August 22, 2022
Characteristics of 283 supernumerary teeth in southern Chinese children
Robert P Anthonappa1, Rashied S M Omer, Nigel M King
1Faculty of Dentistry, The University of Hong Kong, Hong Kong, China. robert_prashanth@yahoo.com
Objectives:
This was a retrospective study to determine the characteristics and distribution of supernumerary teeth in southern Chinese children.
Methods:
The study population consisted of 208 children aged from 2 to 16 years.
Results:
Males were more frequently affected than females in the ratio 3.1:1. Of the 283 supernumerary teeth, 95.0% were located in the premaxilla, 71.5% were conical, 70.7% were unilateral, 29.3% were bilateral, 47.7% were inverted, and 16.9% were erupted. The mean age at the time of diagnosis and removal of the supernumerary teeth was 7.3 +/- 2.7 years (the minimum age was 2.1 years) and 8.1+/- 2.7 years (the minimum age was 4.1 years), respectively. Seventy percent of the children were in the mixed dentition and 81.3% of the supernumeraries were removed under general anesthesia.
Conclusion:
In accordance with previous studies, the majority of the supernumerary teeth were located in the premaxillary region, were conical shaped, and remained unerupted.
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