scans were applied to better determine the extension and surgical planning for the lesion. The CBCT showed a mixed hyperdense-hypodense image with buccal expansion and the displacement of teeth 43 and 44 (Figs. 2Cand D). Involvement of the lower border of the mandible
(Fig. 2D) could not be observed. An incisional biopsywas performed and the DA was diagnosed (Figs. 3A and B). A segmental resection from teeth 46 to 31, maintaining the lower border of the mandible, was performed under general anesthesia. The treatment was performedthrough the mouth, and a reconstruction plate (2.4 mm- Neortho System, Curitiba, Brazil) was used to minimize
the risk of fracture. The postoperative period was uneventful. The patient is currently undergoing routine follow-up with no signs of recurrence after 12 months.