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J Korean Assoc Oral Maxillofac Surg. 2019 Oct;45(5):233-240. English. Review. https://doi.org/10.5125/jkaoms.2019.45.5.233
Leung YY .
Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Hong Kong, Hong Kong. mikeyyleung@hku.hk
Abstract

Trigeminal nerve injury as a consequence of lower third molar surgery is a notorious complication and may affect the patient in long term. Inferior alveolar nerve (IAN) and lingual nerve (LN) injury result in different degree of neurosensory deficit and also other neurological symptoms. The long term effects may include persistent sensory loss, chronic pain and depression. It is crucial to understand the pathophysiology of the nerve injury from lower third molar surgery. Surgery remains the most promising treatment in moderate-to-severe nerve injuries. There are limitations in the current treatment methods and full recovery is not commonly achievable. It is better to prevent nerve injury than to treat with unpredictable results. Coronectomy has been proved to be effective in reducing IAN injury and carries minimal long-term morbidity. New technologies, like the roles of erythropoietin and stem cell therapy, are being investigated for neuroprotection and neural regeneration. Breakthroughs in basic and translational research are required to improve the clinical outcomes of the current treatment modalities of third molar surgery-related nerve injury.

Copyright © 2019. Korean Association of Medical Journal Editors.