title: Injection of sodium hyaluronate compared to a corticosteroid in the treatment of patients with temporomandibular joint osteoarthritis: a CT evaluation.
abstract: OBJECTIVE
  Osseous changes in the temporomandibular joint (TMJ) were evaluated using computed tomography (CT) examinations before and after TMJ injections of sodium hyaluronate or a corticosteroid in patients with osteoarthritis (OA).
  
  
  METHODS
  Forty patients were randomly allocated into 2 groups for 2 intra-articular injections with either sodium hyaluronate or a corticosteroid. Bilateral TMJ examinations with high resolution CT were obtained in 36 patients before and 6 months after treatment. Treated and contralateral TMJs were evaluated for the presence of osteoarthritic osseous abnormalities by 2 reviewers independently.
  
  
  RESULTS
  Progression, regression, and no changes of osseous abnormalities were demonstrated in 13, 9, and 14 TMJs, respectively, 6 months after treatment. There was no significant difference between the groups.
  
  
  CONCLUSIONS
  Progression/regression and no changes of osteoarthritic abnormalities were observed on CT examinations in both the treated and the contralateral TMJs after treatment with intra-articular injection with sodium hyaluronate or corticosteroid.
authors.affiliation: Department of Maxillofacial Radiology, Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, Oslo, Norway. amoystad@odont.uio.no
authors.forename: Anne
authors.initials: A
authors.lastname: Møystad
authors.forename: Bjørn Bamse
authors.initials: BB
authors.lastname: Mork-Knutsen
authors.forename: Tore
authors.initials: T
authors.lastname: Bjørnland
mesh_terms: D000276:Adjuvants, Immunologic / Q000008:administration & dosage*; D000893:Anti-Inflammatory Agents / Q000008:administration & dosage*; D001623:Betamethasone / Q000008:administration & dosage / Q000031:analogs & derivatives; D005260:Female; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage* / Q000031:analogs & derivatives; D007270:Injections, Intra-Articular; D008297:Male; D008335:Mandibular Condyle / Q000000981:diagnostic imaging; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging / Q000188:drug therapy*; D013704:Temporomandibular Joint / Q000000981:diagnostic imaging; D013705:Temporomandibular Joint Disorders / Q000000981:diagnostic imaging / Q000188:drug therapy*; D014057:Tomography, X-Ray Computed
chemical_list: D000276:Adjuvants, Immunologic; D000893:Anti-Inflammatory Agents; C049816:hylan; C018230:betamethasone acetate phosphate; D006820:Hyaluronic Acid; D001623:Betamethasone