Functional Sensory Recovery after Inferior Alveolar Nerve Re
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The nerve sliding technique (NST) was introduced for repairing inferior alveolar nerve (IAN) defect and overcoming the disadvantages of conventional surgical treatment methods like nerve graft. This technique shows 62.5% Functional Sensory Recovery (FSR) up to 15 mm defects.

This study published by the Journal of Oral and Maxillofacial Surgery was conducted to identify factors associated with functional sensory recovery (FSR) following inferior alveolar nerve repair using the nerve sliding technique.

This was a retrospective cohort study including all patients who underwent IAN repair using the nerve sliding technique. The damaged part of the IAN was excised, and the incisive branch was transected intentionally to perform direct anastomosis without tension. Cox proportional hazard analysis was utilized to determine the relationships between predictor variables (age, gender, chief complaints, preoperative sensory results, duration from injury to repair, length of nerve tissue resected during the procedure, and neuroma formation) and the outcome variable ( time to FSR).

The sample was composed of 16 patients. The mean nerve gap deficit was 7.69 mm (3-15mm).

--Ten patients achieved FSR with a median time from operative treatment to FSR was 84.5 days.

--Dental implant placement was found as the main cause for IAN injury and 56.2% of patients complained of hypoesthesia and dysesthesia.

--Factors associated with time to FSR at 1 year were age, chief complaint, and early repair. Younger patients and patients without dysesthesia were more likely to achieve FSR.

--The higher proportion of the early repair group achieved FSR, although not statistically significant.

Conclusively, the use of NST in repair of IAN defects up to 15 mm achieved 62.5% FSR. Younger age and absence of dysesthesia were associated with higher FSR.

Source: https://doi.org/10.1016/j.joms.2021.02.036
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