Bone Regeneration Materials

Article Preview

Abstract:

Biomaterials Center is composed of five groups and collaborate each other to examine interdisciplinary fields of biomaterials. In the ceramics-based biomaterials research, we have been developing three novel bone regeneration materials, i.e., high-porosity hydroxyapatite (HAp) ceramics with high-strength, guided bone regeneration (GBR) membranes and bone-like nanocomposite composed of HAp and collagen. The GBR membrane composed of β-tricalcium phosphate and biodegradable copolymer of lactide, glycolide and ε-caprolactone has thermoplastic, pH auto-adjustment and enough mechanical property to protect an invasion of surrounding tissues. With the membrane, bone defect up to 20 × 10 × 10 mm3 in length in mandibles and segmental bone defect up to 20 mm in length in tibiae of beagles are regenerated without any additional bone fillers or cell transplantations. The bone-like nanocomposite is synthesized by a co-precipitation of HAp and collagen via their self-organization. The dense composite has a half to quarter mechanical strength (40 MPa) to cortical bone and the porous one demonstrates sponge-like viscoelasticity. The composites implanted into bone are incorporated into bone remodeling metabolism like as autogenous bone graft, i.e., they are resorbed by osteolasts followed by osteogenesis by osteoblasts.

You might also be interested in these eBooks

Info:

Periodical:

Key Engineering Materials (Volumes 342-343)

Pages:

277-280

Citation:

Online since:

July 2007

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] M. Kikuchi, Y. Suetsugu, J. Tanaka and M. Akao, J. Mater. Sci.: Mater. in Med. 8 (1997), p.361.

Google Scholar

[2] M. Kikuchi, J. Tanaka, Y. Koyama and K. Takakuda, J. Biomed. Mater. Res. (Appl. Biomater. ), 48 (1999), p.108.

Google Scholar

[3] M. Kikuchi and J. Tanaka, J. Ceram. Soc. Japan, 108 (2000), p.642.

Google Scholar

[4] M. Kikuchi, Y. Koyama, K. Takakuda, H. Miyairi, N. Shirahama and J. Tanaka, J. Biomed. Mater. Res., 62 (2002), p.265.

Google Scholar

[5] Y. Koyama, M. Kikuchi, T. Yamada, T. Kanaya, H.N. Matsumoto, K. Takakuda, H. Miyairi and J. Tanaka, JSME International J., 46 series C (2003), p.1409.

DOI: 10.1299/jsmec.46.1409

Google Scholar

[6] M. Kikuchi, Y. Koyama, T. Yamada, Y. Imamura, T. Okada, N. Shirahama, K. Akita, K. Takakuda and J. Tanaka, Biomaterials, 25 (2004), p.5979.

DOI: 10.1016/j.biomaterials.2004.02.001

Google Scholar

[7] M. Kikuchi, S. Itoh, S. Ichinose, K. Shinomiya and J. Tanaka: Biomater. Vol. 22 (2001), p.1705.

Google Scholar

[8] M. Kikuchi, H.N. Matsumoto, T. Yamada, Y. Koyama, K. Takakuda and J. Tanaka: Biomater. Vol. 25 (2004), p.63.

Google Scholar

[9] M. Kikuchi, T. Ikoma, S. Itoh, H.N. Matsumoto, Y. Koyama, K. Takakuda, K. Shinomiya and J. Tanaka: Composite Sci. and Tech., Vol. 64, (2004), p.819.

Google Scholar

[10] M. Kikuchi, S. Itoh, H.N. Matsumoto, Y. Koyama, K. Takakuda, K. Shinomiya, and J. Tanaka: Key-Eng Mater. Vol. 240-242 (2003), p.567.

DOI: 10.4028/www.scientific.net/kem.240-242.567

Google Scholar

[11] M. Kikuchi, T. Ikoma, D. Syoji, H.N. Matsumoto, Y. Koyama, S. Itoh, K. Takakuda, K. Shinomiya and J. Tanaka: Key-Eng Mater. Vol. 254-256 (2004), p.561.

DOI: 10.4028/www.scientific.net/kem.254-256.561

Google Scholar

[12] S. Itoh, M. Kikuchi, K. Takakuda, Y. Koyama, H.N. Matsumoto S. Ichinose, J. Tanaka, T. Kawauchi and K. Shinomiya: J. Biomed. Mater. Res. Vol. 54 (2001), p.445.

DOI: 10.1002/1097-4636(20010305)54:3<445::aid-jbm190>3.0.co;2-9

Google Scholar

[13] S. Itoh, M. Kikuchi, Y. Koyama, K. Takakuda, K. Shinomiya and J. Tanaka: Biomater. Vol. 23 (2002), p.3919.

Google Scholar

[14] S. Itoh, M. Kikuchi, K. Takakuda, K. Nagaoka, Y. Koyama, J. Tanaka and K. Shinomiya: J Biomed. Mater. Res. Vol. 63 (2002), p.507.

DOI: 10.1002/jbm.10305

Google Scholar

[15] S. Itoh, M. Kikuchi, Y. Koyama, K. Takakuda, K. Shinomiya and J. Tanaka: Cell Transplant. Vol. 13 (2004), p.451.

DOI: 10.3727/000000004783983774

Google Scholar