Spontaneous Bone Regeneration of the Mandible: In a Case of Osteosarcoma and Literature Review

There are rare cases reported in the literature that have demonstrated spontaneous bone regeneration after resection of the mandible in benign pathology. Mandibular defects may result from many conditions such tumors. The tumor presented radiographically as an osteolytic lesion, after biopsy, it was found to be an osteogenic sarcoma, a hemimandibulectomy was performed. Clinically and radiographically a very hard-formed bone could be palpated and seen, also a functional left temporal muscle, which had been completely detached from the resected mandible, could be palpated. The purpose of this article was to report an unusual malignant case of complete spontaneous bone regeneration of the coronoid process ascending ramus and partial regeneration of the body of the mandible in a case of osteosarcoma.