This aim of this review was to assess the methodological quality of published systematic reviews in the management of temporomandibular disorders (TMD).
Medline, the Cochrane Library and Bandolier were searched for systematic reviews that focused on TMD management published in English, Swedish, or German. Two investigators evaluated the methodological quality of each identified systematic review using two measurement tools, AMSTAR and level of research design (LRD) scoring.
Thirty-eight systematic reviews met inclusion criteria and 30 were analysed (23 qualitative, 7 meta-analyses). Ten of these reviews were related to occlusal appliances, occlusal adjustment or bruxism; eight to physical therapy; seven to pharmacologic treatment; four to TMJ and maxillofacial surgery; and six to behavioural therapy and multimodal treatment.
The median AMSTAR score was 6 (range 2–11). Eighteen of the systematic reviews were based on randomised clinical trials (RCTs), three were based on case–control studies, and nine were a mix of RCTs and case series.
- There is some evidence that occlusal appliances, acupuncture, behavioural therapy, jaw exercises, postural training, and some pharmacological treatments can be effective in alleviating pain in patients with TMD.
- Evidence is insufficient for the effect of electrophysical modalities and surgery.
- Occlusal adjustment seems to have no effect according to the available evidence.
- One limitation of most of the SRs reviewed was that the considerable variation in methodology between the primary studies made definitive conclusions impossible.
List T, Axelsson S. Management of TMD: evidence from systematic reviews and meta-analyses. J Oral Rehabil. 2010 May;37(6):430-51. [PubMed abstract]