title: A Retrospective Study of Association between Peg-shaped Maxillary Lateral Incisors and Dental Anomalies.
abstract: OBJECTIVE
  The purpose of this study was to investigate the prevalence of peg-shaped maxillary lateral incisors and the incidence of associated dental anomalies in children.
  
  
  METHODS
  We investigated the prevalence of peg-laterals and incidence of associated dental anomalies in 3,834 children aged 7-15 who visited the Department of Pediatric Dentistry from January 2010 to December 2015 and underwent panoramic radiographs.
  
  
  RESULTS
  The prevalence of peg-laterals was 1.69% in boys, 1.75% in girls, and 1.72% overall. Among children with peg-laterals, the frequencies of associated dental anomalies were as follows: congenitally missing teeth, 31.8%; dens invaginatus, 19.7%; palatally displaced canines, 12.1%; supernumerary teeth, 7.6%; and transposition, 7.6%.
  
  
  CONCLUSIONS
  As children with peg-laterals have a higher incidence of other dental anomalies, careful consideration is needed when planning diagnosis and treatment.
authors.forename: Jae-Hwan
authors.initials: JH
authors.lastname: Kim
authors.forename: Nam-Ki
authors.initials: NK
authors.lastname: Choi
authors.forename: Seon-Mi
authors.initials: SM
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D007180:Incisor / Q000002:abnormalities*; D008297:Male; D008437:Maxilla; D012189:Retrospective Studies; D014071:Tooth Abnormalities / Q000175:diagnosis*
keywords: dental anomalies; peg-shaped maxillary lateral incisors; prevalence