الفهرس 
DEDICATIONOnly 14 pages are availabe for public view
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Abstract
Adequate bone volume and a proper aesthetic outcome have become the main focus of interest in implant dentistry. Alveolar bone resorption is a natural course occurring after tooth removal. Partial extraction therapy through root preservation has been reported to help in bone maintenance at the extraction site. In 2010, Hurzeler et al. evaluated a new approach, at that time, called socket shield technique. Han et al. in 2018 reported the modification of this technique and leaving the jump gap between the shield and the implant non-grafted. The importance of bone grafting of the gap between the implant and the labial shield in improving quality of regenerating bone and prevention of the soft tissue ingrowth has been described. Thus the hypothesis, of improving the modified socket shield technique by bone grafting could be tested. Aim of this study was to evaluate the clinical and radiographic outcomes of using xenogenic bone graft on outcome of immediate dental implant placement using the modified socket shield technique.
Sixteen patients who were admitted to the outpatient clinic of Oral and Maxillofacial Surgery Department, were divided into two study groups. Control group received an immediate implant with modified socket shield technique. Test group received immediate implant with modified socket shield and bone graft put in the buccal gap. Outcome measurement was primary and secondary implant stability measurement and CBCT evaluation. Both groups experienced minimum to moderate pain post-surgically with no signs of postsurgical edema in both. Peri-implant BMD after 6 months for the test group showed to increase with a % change median of 39.4 % and this was found to be significantly higher than the control group. Implant secondary stability was found to be significantly higher in the test group with a median of 78 ISQ compared to 73 ISQ for the control group., BBH of both groups showed a minimum amount of bone loss with medians 0.24 and 0.45mm, in study and control groups, respectively, after 6 months the difference between both groups was found to be insignificant.