title: The prevalence of malocclusion in China--an investigation of 25,392 children.
abstract: OBJECTIVE
  To investigate the prevalence of malocclusion in China.
  
  
  METHODS
  Based on individual normal occlusion and Angle's classification of malocclusion, standard investigation form was made. 25,392 children of different dental ages were evaluated by orthodontic professionals.
  
  
  RESULTS
  The prevalence of malocclusion among Chinese children was 67.82%. The prevalence of malocclusion among children with different dental age and the proportion of the different types of malocclusions were revealed.
  
  
  CONCLUSIONS
  The prevalence of malocclusion among Chinese children had increased from 40% to 67% over the last 40 years.
authors.affiliation: Department of Orthodontics, Peking University School of Stomatology, Beijing 100081, China.
authors.forename: Minkui
authors.initials: M
authors.lastname: Fu
authors.forename: Ding
authors.initials: D
authors.lastname: Zhang
authors.forename: Bangkang
authors.initials: B
authors.lastname: Wang
authors.forename: Yan
authors.initials: Y
authors.lastname: Deng
authors.forename: Fohan
authors.initials: F
authors.lastname: Wang
authors.forename: Xiangyu
authors.initials: X
authors.lastname: Ye
mesh_terms: D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000145:classification / Q000453:epidemiology*; D008403:Mass Screening / Q000379:methods; D015995:Prevalence