title: Incidence and prevalence of periodontal diseases.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D005891:Gingivitis / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010518:Periodontitis / Q000453:epidemiology*