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Development of 3D-printable restorative material with hardness comparable to human enamel

Research Project

Project/Area Number 20K21685
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 57:Oral science and related fields
Research InstitutionKyushu Dental College

Principal Investigator

Ikeda Hiroshi  九州歯科大学, 歯学部, 准教授 (80621599)

Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Keywords3Dプリント / 積層造形 / 付加造形 / エナメル質 / 生体模倣 / 歯冠修復 / クラウン / 機械的性質 / 歯冠修復物 / 生態模倣 / 複合材料
Outline of Research at the Start

金属、セラミックス、複合材料などの既存の歯科材料において、エナメル質と力学的性質もつ実用材料はない。一方、3Dプリント(積層造形)は、造形物の形状任意性に優れることから、次世代の歯冠修復物の作製方法として有望である。そこで本研究では、独自開発した技術をもとに3Dプリント可能なエナメル質と同等の硬さをもつ新素材を創製し、新規歯冠修復物を開発する。

Outline of Final Research Achievements

The purpose of this study was to develop 3D-printed crown with hardness comparable to human enamel. A precursor for 3D printing containing silica nanoparticles was prepared and printed by using SLA 3D-printer. The object was sintered and infiltrated with resin monomers followed by heat-polymerization. The resultant 3D-printed crown composed of a polymer-infiltrated ceramic was characterized by mechanical and physicochemical properties. The result showed that the 3D-printed crown exhibited Vickers hardness equivalent to enamel and elastic modulus equivalent to dentin. Physicochemical properties were acceptable for practical use. The results suggest that the 3D-printed crown is alternative candidate for tooth restorative material.

Academic Significance and Societal Importance of the Research Achievements

新しく開発した3Dプリント冠は、エナメル質や象牙質などの歯質に近い物性をもつ。このような材料はこれまで報告されていない。新規3Dプリント冠は新しい修復用材料として期待できる。優れた特徴を活用できれば、金銀パラジウム合金の代替材料となる可能性があると考えられる。

Report

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

    (11 results)

All 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (6 results)

  • [Journal Article] Castable polymer-infiltrated ceramic network composite for training model tooth with compatible machinability to human enamel2022

    • Author(s)
      TOKUNAGA Jumpei、IKEDA Hiroshi、NAGAMATSU Yuki、AWANO Shuji、SHIMIZU Hiroshi
    • Journal Title

      Dental Materials Journal

      Volume: 41 Issue: 4 Pages: 520-526

    • DOI

      10.4012/dmj.2021-299

    • ISSN
      0287-4547, 1881-1361
    • Year and Date
      2022-07-25
    • Related Report
      2021 Annual Research Report
  • [Journal Article] Wear of Polymer-Infiltrated Ceramic Network Materials against Enamel2022

    • Author(s)
      Tokunaga Jumpei、Ikeda Hiroshi、Nagamatsu Yuki、Awano Shuji、Shimizu Hiroshi
    • Journal Title

      Materials

      Volume: 15 Issue: 7 Pages: 2435-2435

    • DOI

      10.3390/ma15072435

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Dental Poly(methyl methacrylate)-Based Resin Containing a Nanoporous Silica Filler2022

    • Author(s)
      Hata Kentaro、Ikeda Hiroshi、Nagamatsu Yuki、Masaki Chihiro、Hosokawa Ryuji、Shimizu Hiroshi
    • Journal Title

      Journal of Functional Biomaterials

      Volume: 13 Issue: 1 Pages: 32-32

    • DOI

      10.3390/jfb13010032

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Printable PICN Composite Mechanically Compatible with Human Teeth2021

    • Author(s)
      Sodeyama M.K.、Ikeda H.、Nagamatsu Y.、Masaki C.、Hosokawa R.、Shimizu H.
    • Journal Title

      Journal of Dental Research

      Volume: 100 Issue: 13 Pages: 1475-1481

    • DOI

      10.1177/00220345211012930

    • Related Report
      2021 Annual Research Report
  • [Journal Article] PICN Nanocomposite as Dental CAD/CAM Block Comparable to Human Tooth in Terms of Hardness and Flexural Modulus2021

    • Author(s)
      Kawajiri Yohei、Ikeda Hiroshi、Nagamatsu Yuki、Masaki Chihiro、Hosokawa Ryuji、Shimizu Hiroshi
    • Journal Title

      Materials

      Volume: 14 Issue: 5 Pages: 1182-1182

    • DOI

      10.3390/ma14051182

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 歯質と同じ機械的性質をもつCAD/CAMブロックの作製2021

    • Author(s)
      池田弘、永松有紀、清水博史
    • Organizer
      日本歯科理工学会 春期第77回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] エナメル質と同じ硬さをもつ新規CAD/CAMブロックの創製2021

    • Author(s)
      池田弘、永松有紀、清水博史
    • Organizer
      第24回日本歯科医学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] デジタル造形技術に適用する力学的生体適合性をもつ修復材料の創製2020

    • Author(s)
      池田弘
    • Organizer
      第76 回日本歯科理工学会学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] エナメル質と同じ硬さをもつ積層造形法用新材料の創製と歯冠修復物の作製2020

    • Author(s)
      袖山美奈子
    • Organizer
      日本補綴歯科学会第129回学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] エナメル質と同じ硬さをもつ積層造形用新規材料の開発と歯冠修復物への応用2020

    • Author(s)
      袖山美奈子
    • Organizer
      第76回日本歯科理工学会学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 3Dプリント可能なエナメル質と同じ硬さをもつ新規歯冠修復物の開発2020

    • Author(s)
      袖山美奈子
    • Organizer
      日本補綴歯科学会九州支部学術大会
    • Related Report
      2020 Research-status Report

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Published: 2020-08-03   Modified: 2023-01-30  

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