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Establishment of CAD/CAM crown bonding procedure - Removal of adhesion inhibitors by a new decontaminant

Research Project

Project/Area Number 20K18596
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Nakatani Hayaki  大阪大学, 歯学部附属病院, 医員 (10804487)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords接着歯学 / 接着阻害因子 / CAD/CAM冠 / CAD/CAMレジン冠 / 新規汚染除去剤
Outline of Research at the Start

本研究は,臨床上大きな問題になっているCAD/CAMレジン冠の脱離に対する方略として、簡便かつ効果的に接着阻害因子を除去できる「新規汚染除去法の確立」を目的としている.本研究では新規手法として,歯質接着性モノマーである10-MDPの界面活性剤としての作用に着目し、10-MDPを含有した新規汚染除去剤を用いる.実験法としては接着試験,被着面の形態観察や元素分析を行う.また初期のみならず長期データも確認し、長期安定性を確認する.

Outline of Final Research Achievements

The effects of adhesion inhibiting factors on dentin and resin core surfaces, as well as the effects of a new MDP-containing cleaner and universal-adhesive resin as methods for removing adhesion inhibiter treatment for preventing de-bonding of CAD/CAM resin composite crowns. As a result, temporary cement components were effectively removed by agitation with the new cleaner, and the bond strength of the adhesive resin cement to dentin was significantly recovered. The bonding to the resin core significantly improved by using the new cleaner in addition to an air scaler cleaning or washing with water, same as dentin bonding. Furthermore, as a pre-treatment for bonding to the resin core, applying universal-adhesive resin eliminate the negative effect of adhesion inhibitor.

Academic Significance and Societal Importance of the Research Achievements

本研究結果により,CAD/CAM冠を装着する際には機械的除去に続き化学的処理を行うことで接着阻害因子を十分に除去すること,そしてレジンセメントを使用する前に支台歯側にアドヒーシブレジンを使用することが有効であるが明らかとなった.本研究を通じて得られたデータにより本邦で多く行われているCAD/CAM冠におけるトラブルを減少させることにつながり,メタルフリー補綴の普及にも寄与すると考える.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (3 results)

All 2023 2021 2020

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results)

  • [Journal Article] MDP is effective for removing residual polycarboxylate temporary cement as an adhesion inhibitor2020

    • Author(s)
      TAJIRI-YAMADA Yuko、MINE Atsushi、NAKATANI Hayaki、KAWAGUCHI-UEMURA Asuka、MATSUMOTO Mariko、HAGINO Ryosuke、YUMITATE Masahiro、BAN Shintaro、YAMANAKA Azusa、MIURA Jiro、VAN MEERBEEK Bart、YATANI Hirofumi
    • Journal Title

      Dental Materials Journal

      Volume: 39 Issue: 6 Pages: 1087-1095

    • DOI

      10.4012/dmj.2020-132

    • NAID

      130007950024

    • ISSN
      0287-4547, 1881-1361
    • Year and Date
      2020-11-27
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ヒト唾液・血液汚染したレジンコアへのユニバーサルアドヒーシブ処理によりセルフアドヒーシブセメントの接着性は向上する2023

    • Author(s)
      石田昌也,峯篤史,弓立真広,萩野僚介,江崎良真,伴晋太朗,高石宗佳,中谷早希,石垣尚一
    • Organizer
      第42回日本接着歯学会学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 支台築造用レジンに対する接着 -仮着材の除去法とボンディング材の影響-2021

    • Author(s)
      石田昌也,峯篤史,萩野僚介,山中あずさ,弓立真広,江崎良真,伴晋太朗,高石宗佳,中谷早希,石垣尚一
    • Organizer
      令和3年度日本補綴歯科学会関西支部学術大会
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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