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Formation of functional dental materials by inorganic-organic fusion and their surface properties

Research Project

Project/Area Number 17K11776
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Prosthodontics/ Dental materials science and
Research InstitutionNiigata University

Principal Investigator

OKAWA SEIGO  新潟大学, 医歯学系, 准教授 (80143791)

Co-Investigator(Kenkyū-buntansha) 青柳 裕仁  新潟大学, 医歯学系, 助教 (30460140)
金谷 貢  新潟大学, 医歯学系, 助教 (40177499)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords接着 / 表面改質 / PEEK / UV光重合開始剤 / 接着強さ / 無機有機融合体 / 歯学 / 生体材料
Outline of Final Research Achievements

Poly(ether ether ketone) is expected for a future biomaterial. We investigated that the effect of modification of surfaces of PEEK, carbon fiber reinforced PEEK (CPEEK), glass fiber reinforced PEEK (GPEEK), and hydroxyapatite reinforced PEEK (HAPEEK) on adhesive properties. Pre-polymerization of methylmethacrylate (MMA) with UV initiator were used for surface modification. A MMA with UV initiator was coated at an adhesive area with a brush, and the area was irradiated with UV light with wavelength of 365 nm for 20 s. The bonding strength of PEEK increased to 20.1 MPa. Graft polymerization reaction will be carried out on the substrate. These results showed that the modification of pre-polymerization was suitable to increase to the bonding strength to PEEK. This new surface modification, which provided high adhesive properties to the PEEK and its compounds, is of some help for widely applications of PEEKs.

Academic Significance and Societal Importance of the Research Achievements

PEEKとその無機有機融合体に接着特性を付与させる新しい表面改質法を開発したことで,これらの材料を生体材料として広範囲に応用する可能性および金属アレルギーを回避できる点において学術的意義がある.また,近年歯科界に急速に普及しているCAD/CAMにこれらの材料が適用でき,生体にやさしく,精度に優れた歯科補綴物や骨代替材インプラント等の製作が可能となるので,その経済的なメリットが期待できる.また,これらの材料は,画像診断検査時におけるアーチファクトが生じにくいことも大きな利点である.PEEKの無機有機融合体に付与された接着特性により,生体材料の他に医療用デバイスに応用することも可能となる.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report

Research Products

(8 results)

All 2019 2018 2017

All Presentation (8 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] 化学修飾によるPEEK表面の改質とその接着特性2019

    • Author(s)
      大川成剛,髙 昇将,木村龍弥,青栁裕仁,泉 健次
    • Organizer
      第73回日本歯科理工学会学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 紫外線光重合開始剤を含むMMAにより前処理したPEEKの接着強さ2019

    • Author(s)
      大川成剛,木村龍弥,髙 昇将,青栁裕仁,泉 健次
    • Organizer
      第74回日本歯科理工学会学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effect of UV-irradiation time on PEEK adhesion by UV photo-initiators2019

    • Author(s)
      Okawa S, Kimura T, Aoyagi Y, Izumi K
    • Organizer
      4th Meeting of the International Association for Dental Research Asia Pacific Region 2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] 大気圧プラズマ処理したPEEKの接着特性2018

    • Author(s)
      大川成剛,髙 昇将,青栁裕仁,泉 健次
    • Organizer
      第71回日本歯科理工学会学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 大気圧プラズマ処理したPEEKの接着強さ-接着性モノマーの効果2018

    • Author(s)
      大川成剛,青栁裕仁
    • Organizer
      日本歯科技工学会第40回学術大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 表面改質した繊維強化PEEKの接着特性2018

    • Author(s)
      大川成剛,髙 昇将,青栁裕仁,泉 健次
    • Organizer
      第72回日本歯科理工学会学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Surface characterization of He-plasma and deep-UV-treated polyetheretherketone(PEEK)2018

    • Author(s)
      SEIGO. OKAWA, NORIMASA. TAKA, YUJIN. AOYAGI, KENJI. IZUMI
    • Organizer
      96th General Session & exhibition of the IADR
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 紫外線によって表面改質したPEEKの接着特性について2017

    • Author(s)
      大川成剛,髙 昇将,青栁裕仁,泉 健次
    • Organizer
      第70回日本歯科理工学会学術講演会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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