Clinical application of dental titanium alloys having a high corrosion resistance by selective laser melting

• Project/Area Number: 26462958
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: Tokyo Dental College (2017); Iwate Medical University (2014-2016)
• Principal Investigator: HATTORI MASAYUKI 東京歯科大学, 歯学部, 教授 (10307390)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: チタン / 歯科用金属 / 金属粉末積層造形 / 高耐食チタン

Outline of Final Research Achievements

We have developed multipurpose application of dental alloys having a high corrosion resistance in oral environment. We tried to explore the possibility of application to dental field with high corrosion resistant titanium alloy by selective laser melting. The objects obtained by selective laser melting had mechanical properties such as yield strength and tensile strength equal to or higher than those of the cast products fabricated by the conventional dental casting method. It was suggested that by optimizing the condition of the laser to be irradiated to powder mixture, it is possible to fabricate the prosthetic device by selective laser melting.

Research Products

• [Journal Article] Effects of Addition of Nano-hydroxyapatite to Highly-pressed Collagen on Osteogenic Differentiation in Osteoblastic SaOS-2 Cells (2016)
  • Author(s): K. Ikeda, M. Taira, J. Yokota, M. Hattori, A. Ishisaki, H. Kondo
  • Journal Title: Nano Biomedicine Volume: 8 Issue: 2 Pages: 91-100
  • DOI: 10.11344/nano.8.91
  • NAID: 130005243671
  • ISSN: 1883-5198, 2185-4734
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] The influence of colored zirconia on the optical properties of all-ceramic restorations (2015)
  • Author(s): R. Harada, S. Takemoto, M. Hattori, M. Yoshinari, Y. Oda, E. Kawada
  • Journal Title: Dental Materials Journal Volume: 34 Issue: 6 Pages: 918-924
  • DOI: 10.4012/dmj.2015-171
  • NAID: 130005112764
  • ISSN: 0287-4547, 1881-1361
  • Peer Reviewed
• [Journal Article] <i>In Vivo</i> Evaluation of Noble Porous Apatite Disks Implanted in Rat Critical-size Calvarial Defects by Micro-CT and Histological Observations (2014)
  • Author(s): W. Hatakeyama, M. Taira, K. Ikeda, K. Takafuji, H. Kihara, H. Kondo, M. Hattori
  • Journal Title: Journal of Oral Tissue Engineering Volume: 12 Issue: 1 Pages: 13-19
  • DOI: 10.11223/jarde.12.13
  • NAID: 130005130405
  • ISSN: 1348-9623, 1880-0823
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Tracking GFP-labeled Transplanted Mouse MSC in Nude Mice Using in Vivo Fluorescence Imaging (2014)
  • Author(s): Taira M., Hatakeyama W., Yokota J., Chosa N., Ishisaki A., Takafuji K., Kihara H., Kondo H., Hattori M.
  • Journal Title: Nano Biomedicine Volume: 6 Issue: 2 Pages: 73-77
  • DOI: 10.11344/nano.6.73
  • NAID: 130005130560
  • ISSN: 1883-5198, 2185-4734
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] 生体にやさしいチタン合金開発と加工技術の最前線 (2017)
  • Author(s): 服部雅之
  • Organizer: 平成29年度日本補綴歯科学会東京支部学術大会
  • Invited
• [Presentation] Molecular orientation and surface properties of gold-deposited titanium following alkanethiol immersion treatment (2016)
  • Author(s): S. Saitoh, K. Sasaki, M. Taira, M. Hattori
  • Organizer: International Dental Materials Congress 2016
  • Place of Presentation: バリ（インドネシア）
  • Year and Date: 2016-11-05
  • Int'l Joint Research
• [Presentation] 付加製造技術による高耐食チタン合金の歯科応用への展開 (2016)
  • Author(s): 服部雅之，武本真治，佐々木かおり，齋藤設雄，平 雅之，小田 豊，河田英司
  • Organizer: 第23回日本歯科医学会総会
  • Place of Presentation: 福岡サンパレス（福岡県・福岡市）
  • Year and Date: 2016-10-22
• [Presentation] 下顎運動をCAD/CAM冠の設計に反映させた症例の検討 (2016)
  • Author(s): 塚田顕介，金村清孝，田邊憲昌，服部雅之，近藤尚知
  • Organizer: 第7回日本デジタル歯科学会学術大会
  • Place of Presentation: 北海道立道民活動センター（北海道・札幌市）
  • Year and Date: 2016-05-28
• [Presentation] アルカンチオール処理後の金蒸着チタンの電気化学的特性 (2016)
  • Author(s): 齋藤設雄，佐々木かおり，平 雅之，服部雅之
  • Organizer: 第67回日本歯科理工学会学術講演会
  • Place of Presentation: 九州大学百年講堂（福岡県・福岡市）
  • Year and Date: 2016-04-17
• [Presentation] 純チタンの腐食挙動に及ぼす腐食因子の検討 (2015)
  • Author(s): 武本真治、原田麗乃、染屋智子、田中健介、木下英明、服部雅之、河田英司
  • Organizer: 第300回東京歯科大学記念学会
  • Place of Presentation: 東京都千代田区
  • Year and Date: 2015-10-17
• [Presentation] 金蒸着したチタン表面のアルカンチオール処理後の表面物性 (2015)
  • Author(s): 齋藤設雄、佐々木かおり、平 雅之、服部雅之
  • Organizer: 第65回日本歯科理工学会学術講演会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2015-04-11