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Randomized Controlled Trial
. 2007 Jan;86(1):58-63.
doi: 10.1177/154405910708600109.

Randomized effectiveness study of four therapeutic strategies for TMJ closed lock

E L Schiffman  1 , J O Look, J S Hodges, J Q Swift, K L Decker, K M Hathaway, R B Templeton, J R Fricton
Affiliations
Randomized Controlled Trial

Randomized effectiveness study of four therapeutic strategies for TMJ closed lock

E L Schiffman et al. J Dent Res. 2007 Jan.

Erratum in

  • J Dent Res. 2013 Jan;92(1):98

Abstract

For individuals with temporomandibular joint (TMJ) disc displacement without reduction with limited mouth opening (closed lock), interventions vary from minimal treatment to surgery. In a single-blind trial, 106 individuals with TMJ closed lock were randomized among medical management, rehabilitation, arthroscopic surgery with post-operative rehabilitation, or arthroplasty with post-operative rehabilitation. Evaluations at baseline, 3, 6, 12, 18, 24, and 60 months used the Craniomandibular Index (CMI) and Symptom Severity Index (SSI) for jaw function and TMJ pain respectively. Using an intention-to-treat analysis, we observed no between-group difference at any follow-up for CMI (p > or = 0.33) or SSI (p > or = 0.08). Both outcomes showed within-group improvement (p < 0.0001) for all groups. The findings of this study suggest that primary treatment for individuals with TMJ closed lock should consist of medical management or rehabilitation. The use of this approach will avoid unnecessary surgical procedures.

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Appendix Figure
Flow of participants through each stage of the randomized clinical trial.
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