Paper Title:
Fabrication of Fiber-Reinforced CPC Composite Artificial Bone by RP/RT
  Abstract

Self-hardening calcium phosphate cement (CPC) could not be used to repair a large segmental defect in a load-bearing bone because of its brittleness and weak shock resistance as well as ultra-minute pores. Recent studies incorporated fibers into CPC to improve its strength. A novel approach by rapid prototyping and rapid tool technique (RP/RT) was used in this paper to fabricate fibre-reinforced CPC composite artificial bone. The subsequent mechanical experiments demonstrated that the compressive strength of the CPC-fiber artificial bone was 24MPa, which was significantly higher than 6MPa for CPC control without fiber. And in-vivo experiment about canine radius repair proved that the implanted CPC-fiber artificial bone enabled to provide short-time reinforced mechanical strength, while the degraded fibers created new macropores for new tissue ingrowth. In summary, the CPC-fiber artificial bone may facilitate bone ingrowth and its four times increase in strength may help extend the use of CPC to larger bone repairs in moderately stress-bearing locations.

  Info
Periodical
Materials Science Forum (Volumes 532-533)
Edited by
Chengyu Jiang, Geng Liu, Dinghua Zhang and Xipeng Xu
Pages
745-748
DOI
10.4028/www.scientific.net/MSF.532-533.745
Citation
Q. Lian, D. C. Li, B. H. Lu, "Fabrication of Fiber-Reinforced CPC Composite Artificial Bone by RP/RT", Materials Science Forum, Vols. 532-533, pp. 745-748, 2006
Online since
December 2006
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Price
$32.00
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