Effects of Sintering Temperature Over 1,300℃ on the Physical and Compositional Properties of Porous Hydroxyapatite Foam
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概要
- 論文の詳細を見る
Porous hydroxyapatite (HAP) foam permits three-dimensional (3D) structure with fully interconnecting pores as well as excellent tissue response and good osteoconductivity. It is therefore thought to be a good candidate as scaffold material for bone regeneration and as a synthetic bone substitute material. To fabricate better porous HAP foam, improved physical and structural properties as well as higher osteoconductivity are desired. In the present study, the effects of sintering temperature on the physical and compositional properties of porous HAP foam were evaluated by employing high sintering temperature starting at 1,300℃ up to 1,550℃. The mechanical strength of porous HAP foam increased with sintering temperature to reach the maximum value at 1,525℃, then decreased slightly when sintering temperature was further increased to 1,550℃. Alpha tricalcium phosphate (α-TCP) was formed, and thus the porous HAP foam became biphasic calcium phosphate. Biphasic calcium phosphate consisting of both α-TCP and HAP had been reported to show higher osteoconductivity than HAP alone. We therefore recommend 1,500-1,550℃ as the sintering temperature for porous HAP foam since this condition provided the most desirable physical properties with biphasic calcium phosphate composition.
- 日本歯科理工学会の論文
著者
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UDOH Koh-ichi
Department of Biomaterials, Faculty of Dental Science, Kyushu University
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MUNAR Melvin
Department of Biomaterials, Faculty of Dental Science, Kyushu University
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MATSUYA Shigeki
Department of Biomaterials, 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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MATSUYA Shigeki
Section of Bioengineering, Department of Dental Engineering, Fukuoka Dental College
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Ishikawa Kunio
Department Of Biomaterials Faculty Of Dental Science Kyushu University
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Ishikawa Kunio
九州大学 歯学部口腔機能修復学講座
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Matsuya Shigeki
Department Of Biomaterials Faculty Of Dental Science Kyushu University
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Matsuya Shigeki
日本歯科先端技術研究所
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Nakagawa M
Department Of Biomaterials Faculty Of Dental Science Kyushu University
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NAKAGAWA Masaharu
Department of Biomaterials Faculty of Dental Science, Kyushu University
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Udoh K
Department Of Biomaterials Faculty Of Dental Science Kyushu University
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Munar Melvin
Department Of Biomaterials Faculty Of Dental Science Kyushu University
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Munar Melvin
九州大学 院 歯 生体材料
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Nakagawa Masaharu
Department Of Biomaterials Division Of Oral Rehabilitation Faculty Of Dental Science Kyushu Universi
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Ishikawa Kunio
Department Of Biomaterials
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Ishikawa Kunio
Section Of Biomaterials Department Of Oral Rehabilitation School Of Dentistry Kyushu University
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Ishikawa Kunio
Department of Applied Chemistry, Faculty of Engineering, Osaka Univeristy
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