title: [The x-ray examination of periodontium].
authors.forename: J X
authors.initials: JX
authors.lastname: Xie
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Zou
authors.forename: C F
authors.initials: CF
authors.lastname: Cao
mesh_terms: D006801:Humans; D010510:Periodontal Diseases / Q000000981:diagnostic imaging*; D010514:Periodontal Pocket / Q000000981:diagnostic imaging; D010519:Periodontium / Q000000981:diagnostic imaging*; D011859:Radiography