title: Characteristics and sequelae of erupted supernumerary teeth: A study of 218 cases among Sri Lankan children.
abstract: OBJECTIVE
  In the present study, we investigated the characteristics and sequelae of erupted supernumerary teeth (ST) in a sample of Sri Lankan children.
  
  
  METHODS
  Data were recorded from patients' clinical records, radiographs, models, and extracted teeth.
  
  
  RESULTS
  The sample consisted of 239 ST from 218 patients. The mean age of the sample was 9.08 ± 2.47 years. The male-to-female ratio was 2.8:1. The majority (42.66%) of patients with ST were in aged 8-10 years. Many (94.94%) of the ST were located in the premaxilla (incisor), followed by the canine (4.22%), premolar (0.42%), and molar (0.42%) regions. The most common shape of ST teeth was conical. Malocclusion (59.83%) was the major problem associated with ST, and the clinical impact was highest on the 8-10-year age group. A strong association was observed between patients' age and clinical impact to the dentition (χ2=42.09, P=.000).
  
  
  CONCLUSIONS
  Because the majority of ST can lead to malocclusion, especially in mixed dentition, awareness, early detection, and timely clinical intervention of ST are recommended.
authors.affiliation: Department of Community Dental Health, Faculty of Dental Sciences, University of Peradeniya, Peradeniya, Sri Lanka.
authors.forename: Chandra
authors.initials: C
authors.lastname: Herath
authors.affiliation: Department of Basic Sciences, Faculty of Dental Sciences, University of Peradeniya, Peradeniya, Sri Lanka.
authors.forename: Chantha
authors.initials: C
authors.lastname: Jayawardena
authors.affiliation: Department of Community Dental Health, Faculty of Dental Sciences, University of Peradeniya, Peradeniya, Sri Lanka.
authors.forename: Nandani
authors.initials: N
authors.lastname: Nagarathne
authors.affiliation: Department of Engineering Mathematics, Faculty of Engineering, University of Peradeniya, Peradeniya, Sri Lanka.
authors.forename: Kanthi
authors.initials: K
authors.lastname: Perera
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D013188:Sri Lanka; D014096:Tooth, Supernumerary / Q000150:complications* / Q000473:pathology*
keywords: conical; delayed eruption; extra tooth; malocclusion; mesiodens; supernumerary