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Application of selective laser melting in manufacturing of dental prostheses

Research Project

Project/Area Number 26861627
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Prosthodontics/ Dental materials science and
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Takaichi Atsushi  東京医科歯科大学, 歯学部附属病院, 助教 (30707047)

Co-Investigator(Renkei-kenkyūsha) KAJIMA YUKA  東京医科歯科大学, 歯学部附属病院, 医員 (70778977)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsレーザー積層造形法 / 異方性 / 疲労強度 / 熱処理 / 残留応力 / CAD/CAM / 積層造形
Outline of Final Research Achievements

The mechanical properties and fatigue strength of Co-Cr alloy specimens prepared by selective laser melting (SLM) using three different build directions were investigated and compared to those of cast specimens.The SLM specimens showed no obvious mechanical anisotropy in tensile tests and exhibited significantly higher yield strength and ultimate tensile strength than the cast specimens under all conditions. In contrast, a high degree of anisotropy in fatigue performance associated with the build orientation was found and, in some building directions, fatigue strength of SLM builds was significantly shorter than that in the cast specimens.This could be due to a number of factors, such as surface roughness, crystal orientation, residual stress, and molten pool boundaries.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (9 results)

All 2017 2016 2015

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Fatigue strength of Co-Cr-Mo alloy clasps prepared by selective laser melting2016

    • Author(s)
      Yuka Kajima, AtsushiTakaichi, Takayuki Nakamoto, Takahiro Kimura,Yoshiaki Yogo, Maki Ashida, Hisashi Doi, Naoyuki Nomura, Hidekazu Takahashie, Takao Hanawa, Noriyuki Wakabayashi
    • Journal Title

      Journal of the mechanical behavior of biomedical materials

      Volume: 59 Pages: 446-458

    • DOI

      10.1016/j.jmbbm.2016.02.032

    • Related Report
      2016 Annual Research Report 2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 積層造形体の疲労強度に与えるサポート構造の影響2017

    • Author(s)
      加嶋祐佳,高市敦士,高橋英和,若林則幸
    • Organizer
      日本補綴歯科学会第126回学術大会
    • Place of Presentation
      パシフィコ横浜,横浜,神奈川
    • Year and Date
      2017-06-30
    • Related Report
      2016 Annual Research Report
  • [Presentation] Effects of support structure on the fatigue strength of selective laser melted CoCrMo clasps2016

    • Author(s)
      Takaichi A, Kajima Y, Kittikundecha N, Nakamoto T, Nomura N, Takahashi H, Hanawa T, and Wakabayashi N
    • Organizer
      International Dental Materials Congress 2016
    • Place of Presentation
      Bali, ,Indonesia
    • Year and Date
      2016-11-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of heat treatment on the microstructure and mechanical property of selective laser melted CoCrMo alloys.2016

    • Author(s)
      Kajima Y, Takaichi A, Kittikundecha N, Nakamoto T, Doi H, Takahashi H, Nomura N, Hanawa T, Wakabayashi N.
    • Organizer
      International Dental Materials Congress 2016
    • Place of Presentation
      Bali, ,Indonesia
    • Year and Date
      2016-11-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] レーザー積層造形法で製作したコバルトクロム合金への熱処理条件の検討2016

    • Author(s)
      高市敦士,加嶋祐佳,余語良章,高橋英和,若林則幸
    • Organizer
      日本補綴歯科学会第125回学術大会
    • Place of Presentation
      石川県立音楽堂、金沢、石川
    • Year and Date
      2016-07-08
    • Related Report
      2016 Annual Research Report
  • [Presentation] Fatigue resistance of Co-Cr-Mo alloy clasps fabricated by selective laser melting process.2015

    • Author(s)
      Kajima Y, Takaichi A, Nakamoto T, Kimura T, Ashida M, Doi H, Nomura N, Hanawa T, Takahashi H, Wakabayashi N.
    • Organizer
      6th International Conference on Mechanics of Biomaterials and Tissues (ICMOBT)
    • Place of Presentation
      Marriott Waikoloa (Hawaii, USA)
    • Year and Date
      2015-12-06
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 積層造形法により製作したクラスプの疲労強度の異方性2015

    • Author(s)
      高市敦士
    • Organizer
      金属光造形複合加工医療機器フォーラム第9回シンポジウム
    • Place of Presentation
      松浦機械製作所 東京フォーラムセンター(東京都大田区)
    • Year and Date
      2015-12-05
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] レーザー積層造形法で製作したクラスプの疲労特性.2015

    • Author(s)
      加嶋祐佳、高市敦士、余語良章、高橋英和、若林則幸.
    • Organizer
      平成27年度日本補綴歯科学会・東京支部学術大会
    • Place of Presentation
      東京医科歯科大学(東京都文京区)
    • Year and Date
      2015-11-29
    • Related Report
      2015 Research-status Report
  • [Presentation] レーザー積層造形法で製作したCo-Cr-Mo合金クラスプの疲労強度.2015

    • Author(s)
      高市敦士,加嶋祐佳,中本貴之,蘆田茉希,土居壽,野村直之,塙隆夫,高橋英和,若林則幸 .
    • Organizer
      第66回日本歯科理工学会学術講演会
    • Place of Presentation
      タワーホール船堀(東京都江戸川区)
    • Year and Date
      2015-10-03
    • Related Report
      2015 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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