title: The comparison of outcomes of surgically treated bilateral temporomandibular joint disorder in different groups: a retrospective study.
abstract: OBJECTIVE
  The main purpose of this study was to determine the prognosis and outcomes of the patients with bilateral temporomandibular disorder which underwent bilateral temporomandibular joint surgery in a consecutive number of patients in a retrospective study.
  
  
  METHODS
  Sixty five patients with 130 bilateral TMJ were included the study with the selection from consecutive 256 TMJ patients who were treated with open surgery who do not respond to conservative treatment. 65 patients were divided in to 3 main groups according to the clinical diagnosis of bilateral TMJ site. In the first group comprised 29 patients with 48 TMJ, the clinical diagnosis was bilaterally presence of anterior disc displacement with reduction (ADDR). In the second group comprised 19 patients with 26 TMJ, bilateral presence of TMD consisted of anterior disc displacement without reduction (ADDNR) on both site. In the third group comprised 27 patients with 46 TMJ, bilaterally presence of TMD consist of ADDR on one site and ADDNR on another site. The patients in three different groups were operated either high condylectomy alone or high condylectomy with additional surgical procedures.
  
  
  RESULTS
  In the evaluation of pain relief, clicking, crepitation, headache, marked improvement was determined in all groups, but it was statistically insignificant in the comparison of 3 groups. Slight increase in maximal mouth opening was determined in the mean values of the 3 groups and also in the comparison of 3 groups it was not statistically significant.
  
  
  CONCLUSIONS
  These similar succesfull outcomes of bilateral TMD with the respect of TMJ surgical procedures were obtained in 3 main groups although different diagnosis on the patients' groups was present.
authors.affiliation: University of Yuzuncuyil, Faculty of Dentistry, Department of Oral&Maxillofacial Surgery, Van, Turkiye. btozkan@hotmail.com
authors.forename: Birkan-Taha
authors.initials: BT
authors.lastname: Ozkan
authors.forename: Hannu
authors.initials: H
authors.lastname: Pernu
authors.forename: Kyosti
authors.initials: K
authors.lastname: Oikarinen
authors.forename: Aune
authors.initials: A
authors.lastname: Raustia
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013705:Temporomandibular Joint Disorders / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult