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)
Keywords:Dental implantation, Inferior alveolar nerve lateralization, nerve Bypass, Computer guided surgical stent, Trigeminal somatosensory evoked potential.
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 1st group: implants placed by inferior alveolar nerve
lateralization with Piezosurgery, while in 2nd 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.
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