Preventive Effect of Photobiomodulation in the Postoperative Period of Extractions of Retained Lower Third Molars

Inclusion Criteria: * Patients who present retained lower third molars, according to the degree of surgical difficulty of the procedure and the anatomical position.The selected molars will be those classified according to classes II and III and/or B or C of Pell and Gregory Classification; in vertical or mesio-angular position, according to the Winter Classification or Class II with need for ostectomy or III, with need for ostectomy and odontosection of the Prant Scale, modified by Amarillas-Escobar et al. * That have an indication for the extraction of the lower third molars (due to recurrent infections, bad anatomical position, orthodontic indication) or a professional indication presented in writing and that are healthy (ASA I, with a negative medical history). * Male or female gender. * Age between 18 and 50 years. * Good oral hygiene. * That they agree to participate in the study, after reading and signing the Informed Consent for participation in clinical research. Exclusion Criteria: * Carriers of local alterations that contraindicate surgical intervention or complicate the postoperative period (example: acute phase pericoronitis in the last 30 days, ankylosis of the temporomandibular joint). * Smokers, * Presenting absence of upper and lower central incisors, * With a medical history of photosensitivity * During pregnancy or lactation, * That they were using anti-inflammatories or analgesics, * Allergic to any of the drugs used in the research (amoxicillin, ketorolac, acetaminophen, dexamethasone, chlorhexidine 2%, local anesthetics, sodium bisulfite, etc.) * That during surgery they present any type of complication (bleeding, transoperative difficulties, etc.), because these cases are not included within the expected pattern behavior for this type of surgery (these cases will be reported), * Surgical time greater than 90 minutes.