Evaluation of Neurosensory Deficits Following the Use of Computer Assisted Surgical Guide for Inferior Alveolar Nerve Bypass versus Inferior Alveolar Nerve Lateralization (Randomized Controlled Trial)

Abstract

Objective : To evaluate the neurosensory function of inferior alveolar nerve following the placement of an implant with Bypassing versus lateralization method. Methods : Twenty six partially edentulous patients were selected and equally grouped into 2 groups. In 1 st group: implants placed by inferior alveolar nerve lateralization with Piezosurgery, while in 2 nd group implants placed by computer guided surgical stent to bypass the inferior alveolar nerve. Then the neurosensory deficits are evaluated by subjectively and objectively tests. Assessment occurred at period intervals 2 ,8 & 24 weeks postoperatively. Results: there was statistically significant difference between the IANL & IANB especially at the early post-operative follow up, but with time there was no statistically significant difference. Conclusion: The inferior alveolar nerve lateralization technique has a higher initial rate of sensory dysfunction than the nerve bypassing technique with the aid of computer guided stent.