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Development of novel 3D-printable resin with mechanical compatibility for denture

Research Project

Project/Area Number 22K21068
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0907:Oral science and related fields
Research InstitutionKyushu Dental College

Principal Investigator

Hata Kentaro  九州歯科大学, 歯学部, 特別研修員 (20966650)

Project Period (FY) 2022-08-31 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords義歯 / 3Dプリント / 人工歯 / 積層造形 / レジン
Outline of Research at the Start

光硬化型の積層造形(3Dプリント)は、CAD/CAM切削加工よりも造形精度が高く、複雑な形状が造形できるため、義歯の作製に適している。しかし、既存の義歯用3Dプリント素材は、力学的性質と物理化学的安定性が劣るアクリル系レジンであるため、人工歯に用いた場合、摩耗、脱離、着色、吸水劣化などの課題がある。つまり、これら臨床的課題を克服する新素材が求められる。申請者らは、エナメル質に匹敵する硬さをもち、物理化学的に安定した性質をもつ新規3Dプリント用素材の開発に成功した。本研究では、独自の3Dプリント用素材に改良を加え、義歯に適した新規3Dプリント素材を開発する。

Outline of Final Research Achievements

Three-Dimentional-(3D) printed resins generally have lower mechanical and physicochemical properties than those of CAD/CAM resin composite blocks. In order to improve material properties of 3D-printed resins,, the objective of this study was to develop novel 3D printing material for dentures with excellent physicochemical and mechanical properties. Experimental 3D-printed resins were prepared from silane-treated silica fillers and acrylic resins. Their mechanical and physicochemical properties were evaluated. The results showed that the mechanical and physicochemical properties of the experimental 3D printed resin were equivalent to or better than those of commercially available CAD/CAM resin composite. The results suggested that the experimental 3D-printed resin is a promising material as denture teeth.

Academic Significance and Societal Importance of the Research Achievements

試作した3Dプリントレジンは、義歯人工歯などの3Dプリント素材として有望である可能性が示唆された。このような材料が実用化されれば、優れた機能性をもつ3Dプリント義歯が低価格で実現すると考えられる。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (1 results)

All 2023

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

  • [Journal Article] Bond Strength of Sandblasted PEEK with Dental Methyl Methacrylate-Based Cement or Composite-Based Resin Cement2023

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

      Polymers

      Volume: 15 Issue: 8 Pages: 1830-1830

    • DOI

      10.3390/polym15081830

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access

URL: 

Published: 2022-09-01   Modified: 2025-01-30  

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