Rehabilitation of edentulous posterior mandibular regions with severe ridge atrophy using implants is subject to anatomical, surgical, and biological difficulties. In many cases, the bone is severely atrophied that sufficiently long fixtures cannot be placed without encroaching on the inferior alveolar nerve (IAN). IANL is defined as the lateralization of inferior alveolar neurovascular bundle posterior to the mental foramen, with preservation of the incisive nerve; exposure and traction are used to deflect the IAN laterally while the implants are placed.
This prospective randomized clinical trial will enroll 20 patients with posterior mandibular ridge atrophy. Ten of which will undergo computer guided nerve lateralization with subsequent implant placement and repositioning of the osteomotized bone window and ten patients will undergo computer guided nerve lateralization with subsequent implant placement and sticky bone grafting.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
20
Evaluating neurosensory recovery after Implant placement in posterior atrophic mandible by Guided inferior alveolar nerve lateralization technique
Dina Metawie
Alexandria, Egypt
Change in neurosensory recovery and sensation regaining over 6 months compared to normal (taken at base line)
Electrophysiological test using Mental nerve Blink reflex is done for each patient before surgery(base line), after surgery at 1 month, 3 months and 6 months.
Time frame: 1 month, 3 months and 6 months
Clinical assessment of the change in neurosensory function recovery using Static light touch detection test.
Done at 1 week, 1 month, 3 months and 6 months postoperative.
Time frame: 1 week, 1 month, 3 months and 6 months
Clinical assessment of the change in neurosensory function recovery using Brush stroke discrimination test.
Done at 1 week, 1 month, 3 months and 6 months postoperative.
Time frame: 1 week, 1 month, 3 months and 6 months
Clinical assessment of the change in neurosensory function recovery using two point discrimination test
Done at 1 week, 1 month, 3 months and 6 months postoperative.
Time frame: 1 week, 1 month, 3 months and 6 months
Clinical assessment of the change in neurosensory function recovery using pin-prick sensation test.
Done at 1 week, 1 month, 3 months and 6 months postoperative.
Time frame: 1 week, 1 month, 3 months and 6 months
Implant Success rate
Implant Stability using osstell device to measure the implant success at the time of implant insertion, after 3 month and at 6 month.
Time frame: 3 months and 6 months
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