Diagnosis and Management of Inferior Alveolar Nerve Injury Caused by Calcium Hydroxide Extrusion during Root Canal Treatment: Case Report.

This report highlights a rare occurrence of inferior alveolar nerve (IAN) injury resulting from calcium hydroxide extrusion during endodontic treatment. The patient experienced severe pain and paresthesia in the lower right lip following root canal treatment due to the inadvertent overflow of calcium hydroxide into the IAN canal. No surgical intervention was performed, and the patient received non-steroidal anti-inflammatory analgesics and vitamin B complex injections to manage the symptoms. At 6 months, complete resorption of the root canal material occurred, resulting in further reduction in paresthesia. After a 2-year follow-up, the complete disappearance of paresthesia occurred. The importance of the preoperative radiographs is highlighted. The lack of radiographic assessment at the patient's request led to calcium hydroxide overflow.