Management of a Large Periapical Lesion Following Nonsurgical Retreatment and Low-level Laser Therapy: A Case Report

Tissue repair is an essential process that reestablishes tissue integrity and regular function. Nevertheless, different therapeutic factors and clinical conditions may interfere in this process of periapical healing. Long-term success of root canal treatment(RCT) is dependent on sufficient and appropriate cleaning and shaping of the root canal system along with 3 dimensional obturation. This article aims to report a non-surgical and orthograde endodontic retreatment of mandibular right central incisor with a large radicular cyst progression related to endodontic origin in a 51-year-old male. The signs (sinus tract) and symptoms ceased after treatment. Bone formation Complete healing of the periradicular lesion was observed at the two-year follow-up examination. The appropriate diagnosis of periradicular lesion and the treatment of root canal system allowed complete healing of large lesions without endodontic surgery.