Research

Temporomandibular Joint Disorder

Lasers Med Sci. 2014 Mar;29(2):551-7. doi: 10.1007/s10103-012-1253-6. Epub 2013 Jan 15.

The efficacy of low-level laser therapy for the treatment of myogenous temporomandibular joint disorder.
Ahrari F1, Madani AS, Ghafouri ZS, Tunér J.

Low-level laser therapy (LLLT) has been commonly used for the treatment of painful musculoskeletal conditions, but the results of previous studies on this subject are controversial. The aim of this study was to evaluate the efficacy of LLLT in the management of patients with myogenic temporomandibular joint disorders (TMDs). In this randomized, double-blind clinical trial, 20 patients with myogenic TMD were randomly divided into laser and placebo groups. In the laser group, a pulsed 810-nm low-level laser (average power 50 mW, peak power 80 W, 1,500 Hz, 120 s, 6 J, and 3.4 J/cm(2) per point) was used on painful muscles three times a week for 4 weeks. In the placebo group, the treatment was the same as that in the laser group, but without energy output. The patients were evaluated before laser therapy (T1), after six sessions of laser application (T2), at the end of treatment (T3), and 1 month after the last application (T4), and the level of pain and the amount of mouth opening were measured. There was a significant increase in mouth opening and a significant reduction of pain symptoms in the laser group (p < 0.05). A similar improvement was not observed in the placebo group (p > 0.05). Between-group comparisons revealed no significant difference in pain intensity and mouth opening measurement at any of the evaluation time points (p > 0.05). LLLT can produce a significant improvement in pain level and mouth opening in patients affected with myogenic TMD.

Cold laser for carpal tunnel syndrome

Adv Med Sci. 2011;56(2):270-4. doi: 10.2478/v10039-011-0041-z.

Comparison of the long-term effectiveness of physiotherapy programs with low-level laser therapy and pulsed magnetic field in patients with carpal tunnel syndrome.

Dakowicz A, Kuryliszyn-Moskal A, Kosztyła-Hojna B, Moskal D, Latosiewicz R.
Source
Department of Rehabilitation, Medical University of Bialystok, Bialystok, Poland.

Abstract

PURPOSE:
The aim of the study was to compare the long term effects of low - level laser therapy (LLLT) and pulsed magnetic field (PMF) in the rehabilitation of patients with carpal tunnel syndrome (CTS).

METHODS:
The study included 38 patients with idiopathic CTS, confirmed by electroneurographic (ENG) examination. All patients were randomly assigned to 2 groups: group L (18 patients) treated with LLLT and group M (20 patients) with PMF therapy. Clinical assessment, including day and night pain, the presence of paresthesia, functional tests (Phalen, Tinel, armband tests) and pain severity according to the Visual Analogue Scale (VAS) was conducted before treatment, after the first series of 10 sessions, after a two-week break, after the second series of 10 sessions and six months after the last series.

RESULTS:
After LLLT a significant reduction of day and night pain was observed at each stage of treatment and 6 months after the last series (p<0.05). However, in group M, a significant reduction of both day and night pain was demonstrated only after the second series (p<0.05). A reduction of the incidence of Phalen's symptoms were noticed in both groups, however, only in group L the improvement was significant (p<0.05). In groups L and M a significant reduction of pain intensity was observed at every stage of treatment (p<0.05).

CONCLUSIONS:
Although after LLL as well as PMF therapy clinical improvement was observed, the most significant differences were registered after the second series and persisted for up to 6 months in both groups.

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