The Society's contribution to periodontology.
D005891:Gingivitis / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D010510:Periodontal Diseases / Q000266:history* / Q000628:therapy; D010517:Periodontics / Q000266:history*; D010518:Periodontitis / Q000266:history; D012953:Societies, Dental / Q000266:history*; D006113:United Kingdom