Subgingival microflora and periodontal disease.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001419:Bacteria / Q000254:growth & development / Q000302:isolation & purification*; D003773:Dental Plaque / Q000382:microbiology; D005881:Gingiva / Q000382:microbiology*; D005891:Gingivitis / Q000382:microbiology*; D006801:Humans; D008875:Middle Aged; D010512:Periodontal Index; D010518:Periodontitis / Q000382:microbiology*; D010519:Periodontium / Q000382:microbiology*