Laser acupuncture to temporomandibular disorder treatment

INTERVENTION: Low intensity laser acupuncture to temporomandibular disorder treatment. The acupuncture points: S6, SI19, GB20, LI4, L3, SJ3, GB34, Ex‐3, low power (50mW) infrared laser, for 90s each, with the objective of sedation. Laser acupuncture therapy will happen weekly in one‐hour sessions. Laser treatment is continuous and punctual, directed at each point for a period of 90 seconds. Twelve weekly sessions will complete three months of treatment. The laser acupuncture therapy will follow the standards of protection for the use of lasers, including the protection of patients' eyes. Such protection inhibits the visual stimulus during application of therapy. Neuromuscular relaxing occlusal splint is a dentistry conventional treatment directed to all participants of the research. The splints will be made of acrylic and individually adjusted by surface's sanding . The adjustment is to obtain simultaneous tooth contacts in a physiological mandibular position, where the chewing muscles and temporomandibular joints are protected from excessive occlusal loads. They will wear it for three months, at the night, when usually the involuntary muscle hyperactivity occurs. The adjustments will take place weekly, aiming occlusal changes that result in facial muscleand joint relaxation. CONDITION: temporomandibular disorder and stress PRIMARY OUTCOME: Evaluation of the first, second and third month of intervention ; Measurement of muscle and joint pain orofacial by applying the visual analogue scale (0 to 10) to palpation stomatognathic sites. The individuals will indicate the intensity of pain during the palpation of the facial muscles and TMJ. SECONDARY OUTCOME: Diagnostic Criteria for Temporomandibular Disorders Research (RDC / TMD, Axis II) to assess the psychosocial impact of emotional distress associated to temporomandibular disorder. Levels of depression and no specific symptoms (somatization) will be evaluated. INCLUSION CRITERIA: All subjects will be volunteers by signing the consent term; Female subjects; Aged between 20 and 40; Irrespective of race, creed or social level; Presence of a diagnosis of myofascial pain and arthralgia orofacial chronic, persisting for a minimum period of six months; Minimum intensity of muscle and joint pain of 4.0 points, measured in the VAS during the first evaluation; Present temporomandibular disorders diagnosis according to Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD)