Incidence of Injuries in Inferior Alveolar Nerve After Surgical Removal of Mandibular Third Molar. Prospective Study

Abstract

Background and objective: Inferior dental alveolar nerve injury is a recognized complication of mandibular third molar surgery, potentially resulting in sensory disturbances such as paresthesia and numbness in the lower lip and chin. Our study is aimed of to evaluate the incidence of IAN injury following surgical removal of third molar and to assess its management and outcomes.

Material and Method; Our study was involved surgical extraction of lower wisdom tooth for hundred patients. Preoperative assessments radiographically & clinically were accomplished. Around six months postoperative follow up period for any changes in neurosensory feeling for patients, with recording duration and management of I. A. N. injury.

  Results; Factors of endanger represented in near proximity and deep impaction that making the roots in or around the mandibular canal, were resulted in permanent harm or damage persist after six months in four percent ((4%)) among the total number of 100 patients involved in the study. Transient effect or symptom of postoperative nerve harm/injury was clear in eight percent ((8%)) of patients among 100 case, were the symptom was solved and disappear within 3 months.

Conclusion; Surgery of the lower wisdom tooth stay accompanied with nerve harm or injury of inferior alveolar nerve. Effects could be temporary ((transient)) or permanent deficit which involve small ratio among patients. The essential keys for decreasing the incidence of nerve deficit/injury beside enhancing sequelae, were achieved by focusing on early/premature intervention, preoperative radiograph, and congruent surgical procedure.

Keywords:

Inferior alveolar nerve injury, third molar surgery, Mandibular nerve, Paresthesia, Risk factors.

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