Fabrication of B-type carbonate apatite blocks by the phosphorization of free-molding gypsum-calcite composite

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概要

• 論文の詳細を見る

• B-type carbonate apatite (CO_3Ap) block may be an ideal artificial bone substitute because it is closer in chemical composition to bone mineral. In the present study, the feasibility to fabricate CO_3Ap blocks was investigated using compositional transformation, which was based on the dissolution-precipitation reaction of a gypsum-calcite composite with freemolding behavior. For the compositional change, or phosphorization, gypsum-calcite composites of varying CaCO_3 contents were immersed in 1mol/L<(NH_4)>_3PO_4 aqueous solution at 100℃ for 24 hours. No macroscopic changes were found after the treatment, whereas microscopic change was observed at SEM level. X-ray diffraction, Fourier transform infrared spectroscopy and CHN analysis indicated that the composites were B-type CO_3Ap containing approximately 6-7wt% of CO_3, a value similar to that of biological bone apatite. Diametral tensile strength of the CO_3Ap block was approximately 1-3MPa. Based on the results obtained, it was therefore concluded that gypsum-calcite was a good candidate for the fabrication of CO_3Ap blocks, coupled with the advantage that the composite can be molded to any shape by virtue of the setting property of gypsum.

• 日本歯科理工学会の論文

著者

• ISHIKAWA Kunio

  Department of Biomaterials, Faculty of Dental Science, Kyushu University

• TAKEUCHI Akari

  Department of Biomaterials, Faculty of Dental Science, Kyushu University

• MATSUYA Shigeki

  Section of Bioengineering, Department of Dental Engineering, Fukuoka Dental College

• Ishikawa Kunio

  Department Of Biomaterials Faculty Of Dental Science Kyushu University

• Ishikawa Kunio

  九州大学 歯学部口腔機能修復学講座

• Matsuya Shigeki

  Department Of Biomaterials Faculty Of Dental Science Kyushu University

• Matsuya Shigeki

  日本歯科先端技術研究所

• ZAMAN Chowdury

  Department of Biomaterials, Faculty of Dental Science, Kyushu University

• ZAMAN Q.

  Department of Biomaterials, Faculty of Dental Science, Kyushu University

• ZAMAN Chowdhury

  Department of Biomaterials, Faculty of Dental Science, Kyushu University

• Takeuchi Akari

  Dep. Of Biomaterials Fac. Of Dental Sci. Kyushu Univ.

• Takeuchi Akari

  Department Of Biomaterials Faculty Of Dental Science Kyushu University

• Zaman Chowdhury

  Department Of Biomaterials Faculty Of Dental Science Kyushu University

• Zaman Q.

  Department Of Biomaterials Faculty Of Dental Science Kyushu University

• Ishikawa Kunio

  Department Of Biomaterials

• Matsuya Shigeki

  Section Of Bioengineering Department Of Dental Engineering Fukuoka Dental College

• Ishikawa Kunio

  Section Of Biomaterials Department Of Oral Rehabilitation School Of Dentistry Kyushu University

• Ishikawa Kunio

  Department of Applied Chemistry, Faculty of Engineering, Osaka Univeristy

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