자가치아 뼈 이식재의 유용성에 관한 임상적 연구

Abstract

Abstract Clinical Study on the Efficacy of the Autogenous Tooth Bone Graft Material (AutoBT) Min Woo Han, Jeong Keun Lee Division of Oral and Maxillofacial Surgery, Department of Denti stry, Ajou University School of MedicinePurpose: This study is to evaluate the efficacy of the autogenous tooth bone graft material, clinically and radiologically, as related to implant installation.Methods: In oral and maxillofacial surgery department of Ajou University Hospital, guided bone regeneration (GBR), implant placement combined with GBR, sinus graft, implant placement com bined with sinus graft, and defect filling were performed in 46 patients, using autogenous tooth bone. Among these, 66 im plants were inserted with autogenous tooth bone. Implant stability quotient (ISQ) was measured by Osstell Mentor (Integration Diag nostics, Goteborg, Sweden) on 39 implants on the operation date and 4 months later, and on 21 implants 9months o n the average at the final setting of restoration. Twenty-eight implants with GBR and sinus graft (GBR group: n=14, sinus graft group: n=14) were evaluated radiologically to measure the resorption of grafted autogenous tooth bone after loading.Results: The average initial stabilization of the installed implants was 67 ISQ, and the average secondary stab ilization at 4 months later was 76. The average bone loss of GBR group as me asured 8.0 months after application of prosthesis loading was 0.29 mm and the average bone loss of the sinus graft group as measured 7.6 months after application of prosthesis loading was 0.66 mm, respectively. In the histological assessme nt, formation of the new bone and continuous trabecular bone pattern was identified around autogenous tooth bone.Conclusion: Based on these results, we concluded that autogenous tooth bon e is an excellent bone graft material that can substitute the autogenous bone.Key words:Autogenous tooth bone graft material, Efficacy, Dental implant