title: [The slow progress of periodontology toward modern standards].
authors.forename: H
authors.initials: H
authors.lastname: Trefz
mesh_terms: D005060:Europe; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D010517:Periodontics / Q000266:history*
vernacular_title: Mühsam tastete sich die Parodontologie zu ihrem modernen Standard durch.