Background
Temporomandibular pain has multiple etiologies and a range of therapeutic
options. In this pilot study, the authors assessed the feasibility of conducting a
larger trial to evaluate chiropractic treatment of temporomandibular disorders
(TMDs).
Methods
The authors assigned 80 participants randomly into one of the following four
groups, all of which included a comprehensive self-care program: reversible
interocclusal splint therapy (RIST), Activator Method Chiropractic Technique (AMCT)
(Activator Methods International, Phoenix), sham AMCT and self-care only. They made
assessments at baseline and at month 2 and month 6, including use of the Research
Diagnostic Criteria for Temporomandibular Disorders.
Results
The authors screened 721 potential participants and enrolled 80 people; 52
participants completed the six-month assessment. The adjusted mean change in current
pain over six months, as assessed on the 11-point numerical rating scale, was 2.0 (95
percent confidence interval, 1.1-3.0) for RIST, 1.7 (0.9-2.5) for self-care only, 1.5
(0.7-2.4) for AMCT and 1.6 (0.7-2.5) for sham AMCT. The authors also assessed
bothersomeness and functionality.
Conclusions
The authors found the study design and methodology to be manageable. They
gained substantial knowledge to aid in conducting a larger study. AMCT, RIST and
self-care should be evaluated in a future comparative effectiveness study. Practical
Implications. This pilot study was a necessary step to prepare for a larger study that
will provide clinicians with information that should be helpful when discussing
treatment options for patients with TMD.