الفهرس 
ENGLISH ABSTRACTOnly 14 pages are availabe for public view
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Abstract
In this study we evaluated the clinical and radiographical outcomes of ultrawide diameter dental implants placed immediately in freshly extracted mandibular molar sockets in the aspects of postoperative pain levels which was measured by visual analogue scale, the postoperative edema which was assessed by the ability of pitting , post-operative peri-implant probing depth which was evaluated by Gallagher and Silver Probing pocket depth and post-operative implant stability which was measured by Osstell and radiographic evaluation using CBCT of post-operative peri-implant bone loss, peri-implant bone density and buccal bone thickness.
In this study,12 implants in 12 patients with unrestorable mandibular molar teeth free from any bony defect or periapical pathosis were included. Patients were selected from the outpatient clinic of the Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Alexandria University. All patients underwent atraumatic extraction of mandibular molars and then the implants were placed immediately without flaps or bone grafts. Before all surgeries the patients were clinically examined and preoperative panoramic x-rays and CBCT were taken. Before surgeries the oral cavity was prepared by 0.12% chlorhexidine mouth rinse solution for thirty seconds. Under local anaesthesia, implant was placed immediately to the surgical protocol suggested by the manufacturer. Patients were evaluated clinically for presence of pain and edema in first week, peri-implant probing depth was evaluated immediately post operative ,6,9 months and implant stability evaluated immediately post-operative and after 6 months. all patients were evaluated radiographically using CBCT after 6 and 9 months respectively for recording marginal bone loss and peri-implant bone density. After preforming the statistical analysis, it was found that there was a statistically significant increase in implant stability, bone density between follow up periods.