[Periodontology as times are changing--an historical retrospective and a view toward the future].
D001317:Austria; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D010510:Periodontal Diseases; D010517:Periodontics / Q000266:history* / Q000639:trends
Die Parodontologie im Wandel der Zeit--ein historischer Rückblick und Aussichten für die Zukunft.