[Epidemiological study of periodontal disease in an island in Nagasaki prefecture].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003753:Dental Health Surveys; D006801:Humans; D007564:Japan; D008875:Middle Aged; D009909:Oral Health; D009910:Oral Hygiene; D010510:Periodontal Diseases / Q000453:epidemiology*