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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.118  No.1377 (May) (2010)  >  pp.341-344

Journal of the Ceramic Society of Japan
<<Previous article Vol.118  No.1377 (May) (2010)   pp.341 - 344 Next article>>

Fabrication of low crystalline B-type carbonate apatite block from low crystalline calcite block

Kunio ISHIKAWA1), Shigeki MATSUYA1)2), Xin LIN1), Zhang LEI1), Tetsuya YUASA3) and Youji MIYAMOTO4)
1) Department of Biomaterials, Faculty of Dental Science, Kyushu University
2) Section of Bioengineering, Department of Dental Engineering, Fukuoka Dental College
3) Department of Oral and Maxillofacial Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School
4) Department of Therapic Regulation for Oral Tumors, Institute of Health Biosciences, The University of Tokushima Graduate School


  Low crystalline B-type carbonate apatite (CO3Ap) block was fabricated by compositional transformation based on dissolution–precipitation reaction using microporous low crystalline calcite block as a precursor. In other words, microporous low crystalline calcite block prepared by carbonation of Ca(OH)2 compact was phosphoridated by exposing to 1 mol·dm−3 Na2HPO4 solutions at 60°C for 14 days. XRD, FT-IR and SEM analysis showed that calcite block completely transformed into B-type CO3Ap keeping its macroscopic morphology. Diametral tensile strength of the low-crystalline B-type CO3Ap block was approximately 5.4 MPa, and this value was much higher when compared with the low-crystalline calcite block, 0.73 MPa. Low crystalline B-type CO3Ap block fabricated in this method could be an ideal bone replacement due to its close similarity in its inorganic chemical composition and crystallinity to bone.


Keyword:
Carbonate apatite, Calcite, Bone replacement, Bone remodeling, Crystallinity

Received: November 04, 2009
Accepted: March 23, 2010 , Published online: May 01, 2010
Copyright (c) 2010 The Ceramic Society of Japan

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