title: The role of anatomy in the initiation and spread of periodontal disease: 2.
authors.forename: D G
authors.initials: DG
authors.lastname: Smith
authors.forename: P A
authors.initials: PA
authors.lastname: Heasman
mesh_terms: D003724:Dental Arch / Q000033:anatomy & histology; D005882:Gingival Diseases / Q000150:complications*; D005889:Gingival Recession / Q000150:complications*; D006801:Humans; D008310:Malocclusion / Q000150:complications*; D010510:Periodontal Diseases / Q000209:etiology*; D010519:Periodontium / Q000033:anatomy & histology*