Effect of Photobiomodulation on Pain and Healing of the Vertical Releasing Incision After Endodontic Microsurgery

Inclusion Criteria: * American Society of Anesthesiologists (ASA) I or II. * At least one tooth will receive EMS. * Flap design that includes at least one VRI (triangular, rectangular, papilla base or submarginal rectangular). Exclusion Criteria: * ASA III or IV. * Current heavy smokers (\>10 cigarettes/day) * Uncontrolled diabetes (HbA1c ≥ 7%) or other uncontrolled systemic diseases that may comprise healing, such as vitamin C deficiency, neutrophil deficiencies, immunodeficiency syndromes, or leukemia. * Surgical access on the palatal surface. * Acute swelling or abscess present on the day of the surgery. * Any event or condition that would make continued participation in the study not in the best interest of the subject, as determined by the investigator. * Pregnancy. * Development of any medical condition that might affect the treatment and clinical outcomes, as determined by the investigator. * Initiation of any treatment or exposure that might affect therapy's healing, as determined by the investigator.