The epidemiology of chronic periodontal disease in Western Nigerian schoolchildren.
D000293:Adolescent; D002648:Child; D002908:Chronic Disease; D003753:Dental Health Surveys; D004032:Diet; D005260:Female; D006801:Humans; D008297:Male; D009549:Nigeria; D009909:Oral Health; D010510:Periodontal Diseases / Q000453:epidemiology*; D010512:Periodontal Index