title: Effect of lavage with injection of sodium hyaluronate for patients with nonreducing disk displacement of the temporomandibular joint.
abstract: OBJECTIVE
  The purpose of this study was to determine whether lavaging of the superior joint space with injection of sodium hyaluronate can be used as an alternative treatment method for nonreducing disk displacement of the temporomandibular joint.
  
  
  METHODS
  In 26 patients with nonreducing disk displacement of the temporomandibular joint, the superior joint space was rinsed with 1% xylocaine, and then sodium hyaluronate was injected there (experimental group). As a control group, 50 patients with nonreducing disk displacement of the temporomandibular joint who received no treatment were used (control group). The frequency of the patients with successful clinical resolution was evaluated in each group during 6 months.
  
  
  RESULTS
  The frequency of the patients with successful clinical resolution in the experimental group (73.1%) was significantly higher than that in the control group (36.0%) at the 6-month follow-up (chi-squared test, p < 0.05).
  
  
  CONCLUSIONS
  This therapy appears to represent an alternative treatment method for nonreducing disk displacement of the temporomandibular joint.
authors.affiliation: Department of Oral and Maxillofacial Surgery I, Tohoku University School of Dentistry, Sendai, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Sato
authors.forename: M
authors.initials: M
authors.lastname: Ohta
authors.forename: H
authors.initials: H
authors.lastname: Ohki
authors.forename: H
authors.initials: H
authors.lastname: Kawamura
authors.forename: K
authors.initials: K
authors.lastname: Motegi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000779:Anesthetics, Local / Q000008:administration & dosage; D016009:Chi-Square Distribution; D002648:Child; D005069:Evaluation Studies as Topic; D005157:Facial Pain / Q000503:physiopathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage / Q000627:therapeutic use*; D004204:Joint Dislocations / Q000503:physiopathology / Q000628:therapy*; D008012:Lidocaine / Q000008:administration & dosage; D008297:Male; D008875:Middle Aged; D016059:Range of Motion, Articular; D013704:Temporomandibular Joint / Q000503:physiopathology; D019224:Temporomandibular Joint Disc / Q000473:pathology*; D007507:Therapeutic Irrigation; D016896:Treatment Outcome
chemical_list: D000779:Anesthetics, Local; D006820:Hyaluronic Acid; D008012:Lidocaine