**Author details**

materials were introduced and reported to be effective in preventing vertical and horizontal ridge resorption [75-77]. Kim, et al [78] reported an actual case of extraction socket preservation and reconstruction using autogenous tooth bone powder and block. They reported good healing of extraction socket after 3~3.5 months, and they could successfully perform the

(a) (b) (c)

(d) (e) (f)

(g) (h)

**Figure 23.** Extraction socket graft and delayed implant placement were performed on a 48-year-old male patient. (Kim Y.K., et al. Extraction socket preservation and reconstruction using autogenous tooth bone graft. J. Korean Assoc. Maxillofac. Plast. Reconstr. Surg., 2011.). a): Initial panoramic radiographic view, Periapical radiolucent lesion was ob‐ served at #37, 47 area. Radiolucent lesion was extended to the vicinity of the inferior alveolar canal. b):. Panoramic radiograph 3 months after extraction. c): The mucoperiosteal flap was elevated for implant placement 3 months after #47 extraction. The healing of extraction socket was poor. It was impossible to install the implants because of inade‐ quate stability. d): Autogenous tooth bone graft powder was grafted into the socket. e): Postoperative periapical ra‐ diograph. f): Implant was installed 3 months after socket graft. Primary implant stability was excellent. g): Second surgery was performed 2.5 months after implant placement. h): Periapical radiograph 14 months after the final pros‐

It is obvious that autogenous tooth bone graft materials(AutoBT) are safer than allogeneic and xenogeneic bon egraft materials; the fact that they are compared with the healing performance of free autogenous bone graft in histological view is clear evidence. AutoBT can be used safely

placement of implants.

428 Advances in Biomaterials Science and Biomedical Applications

thetic delivery.

**9. Conclusion**

Young-Kyun Kim1 , Jeong Keun Lee2 , Kyung-Wook Kim3 , In-Woong Um4 and Masaru Murata5

1 Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National Uni‐ versity Bundang Hospital, Seongnam, Korea

2 Department of Dentistry Oral & Maxillofacial Surgery, Ajou University School of Medi‐ cine, Suwon, Korea

3 Department of Oral and Maxillofacial Surgery, College of Dentistry, Dankook University, Cheonan, Korea

4 Director, Korea Tooth Bank, R&D Institute, Seoul, Korea

5 Division of Oral and Maxillofacial Surgery, University of Hokkaido, Hokkaido, Japan
