Feasibility Analysis of Autogenous Tooth-based Bone Graft Material after Guided Bone Regeneration Technique

Background: We set out to determine the possibility of radiographically evaluating the degree of marginal bone loss in humans after functional loading of implants at sites of guided bone regeneration (GBR) with autogenous tooth-based bone graft (ATBBG) material (AutoBT®, Korea Tooth Bank, Seoul, Korea). Materials and Methods: Using ATBBG material, GBR procedures were performed on the extraction sockets with bone defects such as buccal dehiscence and 6 months of healing was allowed. Dental implants were installed and prosthetic procedures were done after another 6 months of healing. Marginal bone levels (MBLs) were radiographically measured following functional loading (mean duration, 10 months; range, 4–18 months) in 10 patients among 19 patients initially enrolled in this study (4 men and 6 women; age range, 39–65 years; mean age, 55.4 years) who maintained follow-up visits after entire surgical and prosthetic procedures. Results: No significant MBL differences were noted immediately after GBR, implant placement and prosthesis delivery (F=0.245, P>0.05). Changes in the MBLs were not affected by gender. Conclusion: The ATBBG material is viable for GBR and can yield a stable MBL even after functional loading of implants. The degree of marginal bone loss after loading with ATBBG is stable.