title: Characteristics of 283 supernumerary teeth in southern Chinese children.
abstract: OBJECTIVE
  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.
  
  
  CONCLUSIONS
  In accordance with previous studies, the majority of the supernumerary teeth were located in the premaxillary region, were conical shaped, and remained unerupted.
authors.affiliation: Faculty of Dentistry, The University of Hong Kong, Hong Kong, China. robert_prashanth@yahoo.com
authors.forename: Robert P
authors.initials: RP
authors.lastname: Anthonappa
authors.forename: Rashied S M
authors.initials: RS
authors.lastname: Omer
authors.forename: Nigel M
authors.initials: NM
authors.lastname: King
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D014096:Tooth, Supernumerary / Q000473:pathology* / Q000601:surgery; D014097:Tooth, Unerupted / Q000473:pathology / Q000601:surgery