A Comparative Study of Low-Level Laser Therapy and Transcutaneous Electrical Nerve Stimulation (TENS) as an adjuvant therapy of Myofascial Pain Dysfunction Syndrome
Objective: Myofascial pain dysfunction syndrome (MPDS) is the most common form of temporomandibular joint disorders. Because of the multifactorial nature of the problem, its management usually involves several treatments together to maximize the complementary effects of these methods. a comparative study on various methods can be helpful in selecting the best solution.
Methods & Materials:108 MPDS patients after determining the initial pain intensity by Visual Analogue Scale (VAS) were enrolled. The first phases of the study included education, awareness, self-care, behavior and relaxation therapy. After a month pain was controlled with VAS scale again. Patients who had scored secondary VAS more than one were divided into three groups including low level laser therapy, TENS and control group using Block Randomization.
Results: Pain in the trapezius muscle and pain on opening the mouth recovered faster in the Laser+drug group. In the mean painful muscle pain , general pain reported by patients , pain in the masseter and pterygoid muscles , pain and limitation of motion in lateral movements, recovery was faster in both laser+drug and TENS groups.
Conclusion: All three therapies relieved the pain of muscles, pain during jaw movements and restriction of movements. But Laser and TENS as an adjuvant to drug therapy in the majority of factors studied, can accelerate pain reduction and improve movement limitations.
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