Dental calculus and bacterial plaque and their relationship to gingival disease in 400 individuals.
D000328:Adult; D003728:Dental Calculus / Q000453:epidemiology*; D003753:Dental Health Surveys; D003773:Dental Plaque / Q000453:epidemiology*; D004739:England; D005260:Female; D005882:Gingival Diseases / Q000453:epidemiology*; D006801:Humans; D008297:Male; D012494:Sampling Studies; D012737:Sex Factors