Epidemiological study of periodontal diseases in rural areas.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D004522:Educational Status; D005260:Female; D006801:Humans; D007194:India; D008297:Male; D008875:Middle Aged; D009910:Oral Hygiene; D010510:Periodontal Diseases / Q000453:epidemiology*; D012959:Socioeconomic Factors