PURPOSE: the effectiveness of lasertherapy in the treatment o temporomandibular of pain with temporomandibular disorders. METHOD: it consisted of a randomized clinical trial divided into two groups: Group 1: AsGaAl laser; Group 2: InGaAIP laser, 20 patients between 19 and 35 years old, diagnosed with signs and symptoms of TMD. Patients had the range of motion for maximum mouth opening and laterality registered at the beginning and at the end of the laser treatment. Laser was applied in four pre-auricular points three times a week during a month, in a total of 12 sessions to each patient. The patients' pain was noted based on the use of visual analogue scale (VAS) and also by physical examination of the pain points. RESULTS: there was a significant reduction (p<0.028) of the level of pain in both treatment groups, but the G1 had higher significance. The evolution of the threshold of muscle sensivity showed a statistically significant difference for G1 and G2. Laser therapy in Group 1 improved the mouth opening 4.643 mm on average, while in Group 2, the average was 3.71 mm per patient. CONCLUSION: there was effectiveness in both lasers in the pain control and mouth opening of patients.
Lasers; Temporomandibular Joint Dysfunction Syndrome; Facial Pain
