The prevalence and severity of periodontal disease in British populations. Dental surveys of employed populations in Great Britain.
D000293:Adolescent; D000328:Adult; D000368:Aged; D003753:Dental Health Surveys; D004739:England; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D009909:Oral Health; D010510:Periodontal Diseases / Q000453:epidemiology*; D012494:Sampling Studies; D012737:Sex Factors; D012923:Social Class