粉体および粉末冶金
Online ISSN : 1880-9014
Print ISSN : 0532-8799
ISSN-L : 0532-8799
研究ノート
歯科において実際に用いられるインプラントの製作と評価に関する研究
坂本 裕紀
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ジャーナル フリー

2018 年 65 巻 8 号 p. 519-524

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Since titanium has a different elastic modulus from the human bone, stress shielding occurs and it causes the difficulty of direct bonding. However, making the porous titanium enables to approximate the elastic coefficient of the human bone. In vivo experiments are indispensable for practical use of porous titanium implants, but it has been considered difficult to process porous titanium into implant shapes. In this study, we aimed for in vivo experiments to embed a sample in rabbit bone, and fabricated a miniaturized implant type sample compared to the actual one used in dental care. Porous titanium was fabricated by spark plasma sintering (SPS). As a result, it was found that it was possible to prevent destruction of the specimen during fabricating by maintaining the compressive force at 30 MPa and the sintering temperature at 570°C for 15 minutes. The compressive strength of the specimen was 150 MPa.

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© 2018 一般社団法人粉体粉末冶金協会
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