title: Tomographic evaluation of temporomandibular joints following discoplasty or placement of polytetrafluoroethylene implants.
abstract: A retrospective comparison was made of tomographic change in the temporomandibular joint (TMJ) of patients who had been treated by either discoplasty or discectomy with polytetrafluoroethylene (PTFE) disc replacement. Fifty-five PTFE- and 18 discoplasty-treated joints were evaluated. More than 60% of the PTFE-treated joints showed severe, destructive osseous change, whereas none of the discoplasty joints showed such change. Histologic examination of the tissues surrounding removed PTFE implants showed a foreign body giant cell reaction. The severity of radiographic change raises questions about the propriety of PTFE as a disc replacement material.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University of Minnesota, School of Dentistry, Minneapolis 55455.
authors.forename: B L
authors.initials: BL
authors.lastname: Florine
authors.forename: D J
authors.initials: DJ
authors.lastname: Gatto
authors.forename: M L
authors.initials: ML
authors.lastname: Wade
authors.forename: D E
authors.initials: DE
authors.lastname: Waite
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001862:Bone Resorption / Q000000981:diagnostic imaging; D002358:Cartilage, Articular / Q000601:surgery*; D005260:Female; D006801:Humans; D007595:Joint Prosthesis / Q000009:adverse effects; D008335:Mandibular Condyle / Q000000981:diagnostic imaging; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D011859:Radiography; D012189:Retrospective Studies; D013704:Temporomandibular Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D013705:Temporomandibular Joint Disorders / Q000601:surgery
chemical_list: D011138:Polytetrafluoroethylene