title: Subgingival microflora and periodontitis.
mesh_terms: D000328:Adult; D000907:Antibodies, Bacterial / Q000032:analysis; D001419:Bacteria / Q000145:classification / Q000302:isolation & purification; D001424:Bacterial Infections / Q000276:immunology / Q000382:microbiology*; D003773:Dental Plaque / Q000276:immunology / Q000382:microbiology; D005881:Gingiva / Q000382:microbiology*; D006801:Humans; D008875:Middle Aged; D010518:Periodontitis / Q000209:etiology / Q000276:immunology / Q000382:microbiology*
chemical_list: D000907:Antibodies, Bacterial