[Epidemiological study of periodontal disease].
D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009910:Oral Hygiene; D010510:Periodontal Diseases / Q000453:epidemiology*; D010512:Periodontal Index
Estudio epidemiológico de la enfermedad parodontal.