title: Paeeriodontics. The past. Microbiology. Part (III).
mesh_terms: D005060:Europe; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009055:Mouth / Q000382:microbiology; D010100:Oxygen / Q000627:therapeutic use; D010517:Periodontics / Q000266:history*; D010518:Periodontitis / Q000188:drug therapy / Q000266:history / Q000382:microbiology / Q000628:therapy; D010519:Periodontium / Q000382:microbiology; D012965:Sodium Chloride / Q000627:therapeutic use; D014481:United States
chemical_list: D012965:Sodium Chloride; D010100:Oxygen