[The prevalence of malocclusion in Japanese school children. 1. Total frequency].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003970:Diastema / Q000453:epidemiology; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008310:Malocclusion / Q000453:epidemiology*; D011378:Prognathism / Q000453:epidemiology; D012737:Sex Factors