Effectiveness of Photobiomodulation for Myofascial Pain in Temporomandibular Disorders

Inclusion Criteria: * Individuals with myofascial TMD (ICD-9 729.1; ICD-10 M79.1) diagnosed according to the DC/TMD criteria; * Participants aged 18 years or older; * Individuals able to communicate, read, write, and provide written informed consent in Portuguese. Exclusion Criteria: * Patients with a history of autoimmune connective tissue diseases, such as rheumatoid arthritis, psoriatic arthritis, scleroderma, or systemic lupus erythematosus; * History of malignancy in the head and neck region within the past 2 years (except basal cell carcinoma) who have undergone head and neck radiation therapy and/or surgery affecting facial muscles; * Patients who have undergone temporomandibular joint surgery or orthognathic surgery; * Pregnant or breastfeeding women; * Patients with poorly adapted prostheses and/or prostheses associated with inadequate increase or decrease of the vertical dimension; * Patients with a history of tardive dyskinesia or oromandibular/cervical dystonia; -Patients with maximum mouth opening less than 35 mm; * Patients using systemic medications with a potential effect on pain at the time of screening will not be included in the study, including analgesics, anti-inflammatory drugs, muscle relaxants, corticosteroids, or other medications with analgesic and/or anti-inflammatory effects. If a participant initiates the use of any such medication during the follow-up period, the participant will be excluded from the study. \- Patients receiving oral and/or …