Evaluation of hydroxyapatite film by powder jet deposition after artificial aging

Ryo Akatsuka, Ken Matsumura, Miyoko Noji, Chihiro Nishikawa, Kei Sato, Takayuki Hagiwara, Takahisa Anada, Osamu Suzuki, Tunemoto Kuriyagawa, Keiichi Sasaki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

This study aimed to create a thick hydroxyapatite (HAp) film on the surface of a human tooth by using a newly developed powder jet deposition (PJD) device for dental handpieces, and sought to examine the microstructural and mechanical properties of the resulting HAp film. The film was evaluated on three-dimensional view, surface roughness, Vickers hardness, and bonding strength before and after artificial aging through thermal cycling (5-55°C) for 500 cycles (30 sec for each cycle, 20 sec of dwell time). The HAp particles in the deposited film were densely packed, and the HAp film's three-dimensional microstructure and its rough surface were maintained after thermal cycling. There was no significant difference in either the HAp film's Vickers hardness or the bonding strength between the film and the enamel substrate before and after thermal cycling. The HAp films created in this study demonstrated excellent microstructural and mechanical properties even after the application of thermal stress. We demonstrated the possibility of using a new type of powder jet deposition (PJD) method we developed to form a new type of interface between the tooth and biomaterials. Consequently, we propose the use of this method in new dental treatments.

本文言語英語
ホスト出版物のタイトルBioceramics 24
出版社Trans Tech Publications Ltd
ページ229-232
ページ数4
1
ISBN(印刷版)9783037855171
DOI
出版ステータス出版済み - 2013
外部発表はい
イベント24th Symposium and Annual Meeting of International Society for Ceramics in Medicine, ISCM 2012 - Fukuoka, 日本
継続期間: 10 21 201210 24 2012

出版物シリーズ

名前Key Engineering Materials
番号1
529-530
ISSN(印刷版)1013-9826
ISSN(電子版)1662-9795

その他

その他24th Symposium and Annual Meeting of International Society for Ceramics in Medicine, ISCM 2012
Country日本
CityFukuoka
Period10/21/1210/24/12

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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