TY - JOUR ID - TI - Augmentation of the localized bony defects with synthetic bone substitute in simultaneous dental implant surgery (Clinical study) AU - Mohammed AbdAlrazaq Hameed محمد عبد الرزاق حميد AU - Sahar Shaker Al-Adili سحر شاكر العادلي PY - 2015 VL - 27 IS - 1 SP - 151 EP - 158 JO - Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد SN - 18171869 23115270 AB - Background: Simultaneous and staged guided bone regeneration (GBR) is one of the several surgical techniquesthat have been developed in the past two decades to regenerate bone and thus to allow implant placementin compromised sites (fenestration and dehiscence). It is a surgical procedure that consists of the placement of acell-occlusive physical barrier between the connective tissue and the alveolar bone defect. The treatment conceptadvocates that regeneration of osseous defects is predictably attainable via the application of occlusivemembranes, which mechanically exclude non-osteogenic cell populations from the surrounding soft tissues, therebyallowing osteogenic cell populations originating from the parent bone to inhabit the osseous wound. Augmentationutilizing guided bone regeneration (GBR) has become a major treatment option to provide optimal bone to supportOsseointegrated dental implants. One of the objectives of GBR is the formation of new bone at sites deficient inbone volume. Another objective is to treat fenestrations and dehiscence at implant surfaces as well as defectsassociated with simultaneous implant placement. GBR has allowed for placement of restorations at a more ideallocation in the oral cavity, thus improving esthetics and functions. This study aimed to improve the alveolar ridgewidth by using of synthetic bone substitute covered by resorbable collagen membrane in simultaneous dentalimplants placement and to compare the ridge width at three levels (crestal, middle and apical) clinically(osteometer) and radiographically (CT) pre operatively and postoperatively.Materials and methods: This prospective study was conducted in teaching dental hospital in College of Dentistry ofBaghdad University on (15) patients with (21) dental implant with insufficient bony support for simultaneous dentalimplants , this study extended from March 2013 to the end of December 2013.All patients were treated at the time of implantation by using a synthetic bone substitute covered by resorbablecollagen membrane .All patients examined clinically by osteometer and radio graphics (CT) to assess ridge widthand height and bone density.Results: Clinically and radiographically evaluation showed increasing of ridge width after 6 months of healing periodat three levels: apical, middle and crestal, statistically, there were no significant differences between ridge widthgain measured clinically and radio graphically and gender and age groups. In this study the success rate (95.24) % in(20) dental implant and only (1) dental implant was failed (4.76) % at age 47 years old.Conclusion: There was significant increase in ridge volume that augmented at the time of implantation to becomesufficient width for support implant esthetically and functionally. This study revealed that there was no effect ingender and age on bone augmentation with synthetic bone substitute.

ER -