Fabrication of low-crystalline carbonate apatite foam bone replacement based on phase transformation of calcite foam
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- MARUTA Michito
- Department of Biomaterials, Faculty of Dental Science, Kyushu University Department of Oral and Maxillofacial Oncology, Faculty of Dental Science, Kyushu University
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- MATSUYA Shigeki
- Section of Bioengineering, Department of Dental Engineering, Fukuoka Dental College
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- NAKAMURA Seiji
- Department of Oral and Maxillofacial Oncology, Faculty of Dental Science, Kyushu University
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- ISHIKAWA Kunio
- Department of Biomaterials, Faculty of Dental Science, Kyushu University
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抄録
Carbonate apatite (CO3Ap) foam may be an ideal bone substitute as it is sidelined to cancellous bone with respect to its chemical composition and structure. However, CO3Ap foam fabricated using α-tricalcium phosphate foam showed limited mechanical strength. In the present study, feasibility of the fabrication of calcite which could be a precursor of CO3Ap was studied. Calcite foam was successfully fabricated by the so-called “ceramic foam” method using calcium hydroxide coated polyurethane foam under CO2+O2 atmosphere. Then the calcite foam was immersed in Na2HPO4 aqueous solution for phase transformation based on dissolution-precipitation reaction. When CaO-free calcite foam was immersed in Na2HPO4 solution, low-crystalline CO3Ap foam with 93–96% porosity and fully interconnected porous structure was fabricated. The compressive strength of the foam was 25.6±6 kPa. In light of these results, we concluded that the properties of the precursor foam were key factors for the fabrication of CO3Ap foams.
収録刊行物
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- Dental Materials Journal
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Dental Materials Journal 30 (1), 14-20, 2011
一般社団法人 日本歯科理工学会
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詳細情報 詳細情報について
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- CRID
- 1390282679692974720
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- NII論文ID
- 130000403871
- 10027420910
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- NII書誌ID
- AA10443149
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- COI
- 1:CAS:528:DC%2BC3MXntlymu78%3D
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- ISSN
- 18811361
- 02874547
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- PubMed
- 21282893
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可