title: Microbial etiology of periodontal disease.
mesh_terms: D001419:Bacteria / Q000166:cytology / Q000472:pathogenicity*; D018407:Bacterial Physiological Phenomena; D001439:Bacteroides / Q000472:pathogenicity; D003773:Dental Plaque / Q000382:microbiology; D005891:Gingivitis / Q000382:microbiology; D006801:Humans; D010510:Periodontal Diseases / Q000382:microbiology*; D010518:Periodontitis / Q000382:microbiology; D010519:Periodontium / Q000382:microbiology; D001443:Prevotella melaninogenica / Q000472:pathogenicity; D012107:Research Design