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Aim : This study was designed to evaluate efficacy of autologous concentrated growth factors enriched bone graft matrix (sticky bone) bone versus autogenous chin bone ring in the premolar–molar region with simultaneous implant placement . Patients and methods: Twenty patients had fresh defective extraction sockets in the mandibular premolar-molar region with severely compromised buccal bone divided randomly into equal groups (in group I; sockets were augmented by sticky bone, and in group II; sockets were augmented by chin bone ring). Then dental implants were placed in the same visit and were covered by collagen membrane in both groups. Clinical and radiographic examinations were done to evaluate the soft tissue, stability of dental implant, crestal bone level, and bone density around dental implants immediate (1st week) postoperatively and at, 3rd, 6th, 9th, and 12th month postoperatively. All readings were recorded and evaluated statistically. Results: Clinically, group II showed little postoperative complications in comparing group I. in the other side, both groups did not show any statistical significance difference in implant stability and probing pocket depth parameters. Radiographically, group I had highly statistical significance more than group II (P <0.001) in bone density and marginal bone level parameters along time of study. Conclusion: Both techniques were successful methods for 3D augmentation of severely defective sockets with immediate placement of dental implant with superiority for autogenous bone ring in aspects of marginal bone level, and density of bone around dental implant.

Autogenous bone ring transplant versus sticky bone in defective socket augmentation with simultaneous implant placemen