An epidemiological study of chronic periodontal disease.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D001315:Australia; D002648:Child; D002675:Child, Preschool; D003728:Dental Calculus / Q000150:complications; D003773:Dental Plaque / Q000150:complications; D005260:Female; D005891:Gingivitis / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009909:Oral Health; D010510:Periodontal Diseases / Q000175:diagnosis; D010512:Periodontal Index; D010518:Periodontitis / Q000453:epidemiology* / Q000209:etiology; D014099:Toothbrushing