In addition to previous posts on published international research studies involving the TMJ Scale in countries like Japan, Canada and Brazil, the following study was conducted in Iraq:
Qasim WF, The Effectiveness of Occlusal Splint Therapy in Treatment of Iraqi Temporomandibular Disorder (TMD) Patients, J Med J, (40) 4:1-6, 2006.
The effectiveness of an occlusal splint as a conservative non-invasive treatment modality of temporomandibular joint disorders evaluated clinically with the design of full coverage, flat, maxillary occlusal splint. Twenty-eight temporomandibular disorder treated patients were evaluated with the Temporomandibular Joint scale (TMJ Scale) before and after treatment. A group of twenty-six similar patients identified as having temporomandibular disorders, but they did not obtained treatment, were used as a control group. It was found that this splint design had a significant effect on improvement of physical signs related to temporomandibular disorder, but it had no significant effect on the elimination of temporomandibular joint clicking at the end of final evaluation period. Accordingly, its indication was limited for myogenic facial pain and not for repositioning purposes.