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

Kunio ISHIKAWA; Shigeki MATSUYA; Xin LIN; Zhang LEI; Tetsuya YUASA; Youji MIYAMOTO

doi:10.2109/jcersj2.118.341

Papers

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

Kunio ISHIKAWA ^†, Shigeki MATSUYA ^†, Xin LIN ^†, Zhang LEI ^†, Tetsuya YUASA ^†, Youji MIYAMOTO ^†

Author information

Kunio ISHIKAWA ^†
Department of Biomaterials, Faculty of Dental Science, Kyushu University
Shigeki MATSUYA ^†
Department of Biomaterials, Faculty of Dental Science, Kyushu University
Section of Bioengineering, Department of Dental Engineering, Fukuoka Dental College
Xin LIN ^†
Department of Biomaterials, Faculty of Dental Science, Kyushu University
Zhang LEI ^†
Department of Biomaterials, Faculty of Dental Science, Kyushu University
Tetsuya YUASA ^†
Department of Oral and Maxillofacial Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School
Youji MIYAMOTO ^†
Department of Therapic Regulation for Oral Tumors, Institute of Health Biosciences, The University of Tokushima Graduate School
Author contributions

†These authors contributed equally: Kunio ISHIKAWA, Shigeki MATSUYA, Xin LIN, Zhang LEI, Tetsuya YUASA, Youji MIYAMOTO

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

JOURNAL FREE ACCESS

2010 Volume 118 Issue 1377 Pages 341-344

DOI https://doi.org/10.2109/jcersj2.118.341

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Abstract

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.

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