Motor Imagery and Rehabilitation in Temporomandibular disorders

INTERVENTION: Behavioural Pain Temporomandibular Joint Dysfunction Syndrome The volunteers will be randomly assigned into two treatment groups: a group that will receive only conventional physiotherapeutic treatment (CONV) that will be the control group of the study (n=32); and another group that will receive the conventional treatment associated with the GMI techniques (CONV + IMG), which is considered the experimental group (n=32). For conventional treatment it is stabilished massage therapy for muscle relaxation and neutralization of trigger points; joint mobilizations; kinesiotherapy for strengthening exercises and stretching of the masticatory and neck muscles. GMI is a 6‐week exercise protocol that includes three phases: recognition of laterality, explicit imagery, and mirror therapy. Each of these steps will be applied for 2 weeks before moving on to the next step. CONDITION: Temporomandibular Joint Temporomandibular joint ; Temporomandibular Joint PRIMARY OUTCOME: To evaluate whether GMI techniques incorporated into conventional physiotherapeutic treatment in individuals with clinical diagnosis of TMD are effective in producing satisfactory primary outcomes in pain reduction and functional improvement of these individuals, when compared to control group. If this is the case, these techniques may be easily incorporated into the treatment of patients with persistent pain which is not responsive to conventional tretaments, which is very common in this population. SECONDARY OUTCOME: Reduce fear of pain related to movement and function through gradual exposure of movement. INCLUSION CRITERIA: Individuals diagnosed with TMD, according to the RDC / TMD classification; who present pain as one of the main symptoms of the dysfunction; for at least 3 months and with intensity of at least 3 according to the Visual Analogue Scale (VAS).