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Development of multi-function Zirconia materials with graded structure

Research Project

Project/Area Number 19K10199
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57050:Prosthodontics-related
Research InstitutionTohoku University

Principal Investigator

Hong Guang  東北大学, 歯学研究科, 教授 (70363083)

Co-Investigator(Kenkyū-buntansha) 齋藤 恵一  東北大学, 歯学研究科, 助教 (00178477)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsジルコニア / 傾斜構造 / 骨芽細胞 / オッセオインテグレーション / ドラッグデリバリー
Outline of Research at the Start

本研究では歯科用インプラントおよび歯牙欠損修復に用いるジルコニア傾斜機能材料の開発を実現すべく、1)ジルコニアの高機能化が可能な傾斜構造付与方法の解明、2)オッセオインテグレーション早期獲得可能なジルコニア傾斜構造の解明、3)ジルコニア傾斜構造によるドラッグデリバリー機能付与の解明、4)ジルコニア傾斜構造による破壊靭性、接着性、加工性(切削性)・審美性の向上について解明し、社会実装へのトランスレーショナル研究、産学連携での新規材料開発へ繋ぐ非臨床POC (Proof of Concept)を獲得することを目的とする。

Outline of Final Research Achievements

The purpose of this study was to establish a method for providing a graded structure to zirconia material to improve its bioactivity and mechanical properties, and to conduct basic research leading to the development of highly functional dental zirconia materials. In this study, the effects of various treatments and bioactive substances on the surface of zirconia on the proliferation and differentiation of osteoblasts and gingival fibroblasts were investigated, as well as their cytotoxicity. The results showed that electrochemical treatment can improve the bioactivity of the material surface, and that the bioactive substances positively affect the differentiation and proliferation of osteoblasts and promote the differentiation of gingival fibroblasts with a certain level of antibacterial activity and no cytotoxicity. These results contribute to the development of high-performance dental zirconia materials.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は、斬新の電気化学的手法を歯科用セラミック系材料に応用することによりメタルフリー歯科用インプラント材表面生体活性を向上する事ができ、オッセオインテグレーション早期獲得に優位に働く表面改質が可能であることが示唆された。さらに、ジルコニア表面に植物由来生体活性有効成分を含有させることにより、治療効果を向上できる可能性も確認された。これらにより、インプラント周囲の組織再生を促進し、オッセオインテグレーションの早期獲得できる新規材料開発を可能とするエビデンスが得られた。本研究は世界初の挑戦であり、患者のQOL向上のみならず、日本歯科産業の世界展開の観点からも社会的意義は高いと考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (5 results) Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (2 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Int'l Joint Research] 北京大学/四川大学/香港大学(中国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 北京大学/四川大学/福建医科大学(中国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Airlangga University(インドネシア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Peking University/Sichuan University/Tianjin Medical University(中国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Airlangga University(インドネシア)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Editorial: Biofunctional Applications of Zirconia in Dental Devices.2022

    • Author(s)
      G Hong*, JK-H Tsoi, JM Han.
    • Journal Title

      Front. Dent. Med.

      Volume: 3 Pages: 1430-1430

    • DOI

      10.3389/fdmed.2022.841120

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Artificial Intelligence in Biomedical Applications of Zirconia.2021

    • Author(s)
      Luo F, Hong G, Wan Q.
    • Journal Title

      Front Dent Med

      Volume: 2 Pages: 689288-689288

    • DOI

      10.3389/fdmed.2021.689288

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Surface Modifications for Zirconia Dental Implants: A Review2021

    • Author(s)
      Sun L, Hong G.
    • Journal Title

      Front. Dent. Med.

      Volume: 2 Pages: 733242-733242

    • DOI

      10.3389/fdmed.2021.733242

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of low-temperature degradation on the surface roughness of Y-TZP ceramics: A systematic review and meta-analysis2021

    • Author(s)
      H Yang, DW Hong, G Hong, H Yu
    • Journal Title

      J Prosthet Dent

      Volume: 25 Issue: 2 Pages: 222-230

    • DOI

      10.1016/j.prosdent.2020.01.005

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The effect of syndecan on osteoblastic cell adhesion onto nano-zirconia surface2020

    • Author(s)
      L Sun, G Hong, H Matsui, YJ Song, K Sasaki
    • Journal Title

      Int J Nanomed

      Volume: 15 Pages: 5061-5072

    • DOI

      10.2147/ijn.s263053

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] How to make bio-active surface on Zirconia?2019

    • Author(s)
      G. Hong
    • Organizer
      The International Cooperation Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] How to make bio-active surface on Zirconia?2019

    • Author(s)
      G. Hong
    • Organizer
      Prosthodontic Update 5
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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