Osteoradionecrosis, is a condition where the bone becomes necrotic or/and exposed due to radiation. The bone dies because radiation damages its blood vessels. Osteoradionecrosis is a rare side effect and a serious complication that develops sometimes after radiation therapy has ended. It usually occurs in the lower jaw and can ever arise over 5 years after radiation. Usually, osteoradionecrosis is treated with conservative or surgical management