[A survey of periodontal diseases using the WHO Community Periodontal Index of Treatment Needs (CPITN)].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D006301:Health Services Needs and Demand; D006302:Health Services Research; D006801:Humans; D007564:Japan; D008875:Middle Aged; D010510:Periodontal Diseases / Q000175:diagnosis / Q000453:epidemiology* / Q000628:therapy; D010512:Periodontal Index; D014944:World Health Organization