الفهرس 
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Abstract
This study evaluates the surgical success of ridge augmentation of posterior mandible using cortical tenting technique.
10 patients were selected from the Outpatient Clinic of the Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Alexandria University. They had vertical bone defect in the posterior part of the mandible with adequate bone width. They were free from any unstable chronic diseases.
Vertical bone defect was treated by cortical tenting technique. In this technique, a cortical block graft was harvested from ramus of mandible using a piezotome 2 and fixed with miniscrews at area of ridge resorption. The space between the cortical graft and the recipient site were, at least, 3mm which was filled with synthetic bone particulates. The whole grafted area was covered with PRF membrane then a mucoperiosteal flap was sutured with a resorbable material. The surgical procedure was done under local anesthesia.
Height of bone above inferior alveolar nerve was measured radiographically using CBCT. Bone height was recorded 3 times (pre-operatively, 2 weeks and 4 months after surgery). The average final bone gain was 4.540 mm at the end of follow up period with 1.700 mm average of graft resorption.
Bone density was also measured at grafted area above the recipient site 4 months after surgery with a mean value of 398.59 VV.
Cortical tenting technique is a highly success rate operation that can add enough bone height for vertical augmentation of posterior mandible.