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Development of novel CAD/CAM composite block with highly bonding property and mechanical properties of human teeth

Research Project

Project/Area Number 21K21093
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

Yano Haruka  九州歯科大学, その他部局等, 特別研修員 (10911050)

Project Period (FY) 2021-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords歯冠修復 / CAD/CAM / ポリマー含浸セラミックス / エナメル質 / 接着 / 生体模倣 / 象牙質
Outline of Research at the Start

既存のCAD./CAMブロックの力学的性質はエナメル質や象牙質と大きく異なる。また、既存のCAD./CAMブロックから作製されたクラウンは脱離しやすいなどの臨床的課題がある。そこで本研究では、歯質と同じ力学的性質と高い接着性を兼ね備えた新規CAD/CAM用ブロックを開発する。

Outline of Final Research Achievements

The purpose of this study was to develop novel CAD/CAM composite block with mechanical compatibility to human teeth. The SiO2/PHEMA based polymer-infiltrated ceramic was prepared and characterized by its mechanical and bonding properties. The prepared PICN composite had a hardness less than that of enamel and an elastic modulus similar to that of dentin. Further, the PICN was well bonded to conventional resin cement with silane coupling agent.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた成果をもとに、将来新規CAD/CAMブロックが完成すれば、金銀パラジウム合金や保険用CAD/CAM用コンポジットレジンの代替材料として期待できる。新規複合材料は安価な原料しか用いないので、保険適用の金銀パラジウム合金の価格高騰により逼迫した我が国の歯科医療経済に多大な貢献ができる。歯冠色を任意に付与することができ、審美的にも圧倒的に有利である。また、既存の保険用CAD/CAM用コンポジットレジンが抱える脱離や破折に関する課題の解決にもつながると考えられる。このように、本研究の社会的意義も大きいと考えられる。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (1 results)

All 2022

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results)

  • [Journal Article] A SiO2/pHEMA-Based Polymer-Infiltrated Ceramic Network Composite for Dental Restorative Materials2022

    • Author(s)
      Ikeda Hiroshi、Kawajiri Yohei、Sodeyama Minako Kibune、Yano Haruka Takesue、Nagamatsu Yuki、Masaki Chihiro、Hosokawa Ryuji、Shimizu Hiroshi
    • Journal Title

      Journal of Composites Science

      Volume: 6 Issue: 1 Pages: 17-17

    • DOI

      10.3390/jcs6010017

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research

URL: 

Published: 2021-10-22   Modified: 2024-01-30  

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