| Objective: Dental implants depend on the enough alveolar bone around them for retention and stability. Bony defects surrounding implants possibly lead to the failure of implants. Based on the concept of Guided Bone Regeneration (GBR) techniques, the membrane which serves as the physiologic barrier, encourages new bone to grow and also prevents the growth of fibro tissue and repairs the defect at last. So far, several biodegradable membranes have been widely used in routine implant surgery. The aim of this study is to evaluate treatment effects of a novel GBR membranes (PDLLA membrane) applied to artificial bony cavities around dental implants on new bone regeneration alone or in combination with bone graft (BIO-OSS?) on the mongrel dog model in comparison with collagen membrane (BIO-GIDE?) and therefore assess the clinical values of the novel GBR membrane in dental implatology. |
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