Incidence of impacted third molars.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000848:Anodontia / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008964:Molar, Third / Q000002:abnormalities / Q000473:pathology*; D012737:Sex Factors; D014095:Tooth, Impacted / Q000453:epidemiology*