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Develop ment of dentin bonding system using Xe eximer lamp

Research Project

Project/Area Number 26462874
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Conservative dentistry
Research InstitutionTokyo Medical and Dental University

Principal Investigator

TONAMI Kenichi  東京医科歯科大学, 歯学部附属病院, 講師 (20334427)

Co-Investigator(Kenkyū-buntansha) 岩崎 直彦  東京医科歯科大学, 大学院医歯学総合研究科, 助教 (20242216)
Research Collaborator SANO Kazunobu  
Project Period (FY) 2014-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords象牙質 / 接着 / 紫外光 / コンポジットレジン / せん断接着強さ / Xeエキシマランプ / 光化学表面処理 / オゾン / 多孔質 / 重合阻害 / 象牙質接着強さ / 接着強さ / 接着界面 / TEM / エキシマランプ / 表面改質 / 光洗浄 / 紫外線 / ぬれ性 / 接触角
Outline of Final Research Achievements

The aim of this study is to develop a new dentin bonding system using Xe Excimer lamp which irradiate UV light of 172nm wavelength. The analysis of irradiated dentin surface and the share bonding test were conducted. Obtained result is that wettability of dentin surface improve with the 172nm UV irradiation. Bonding agent penetrate into irradiated dentin surface in 250nm depth and forming a hybrid layer. Share bonding test demonstrated the bonding strength between dentin and composite resin. Thus, there is possibilities that dentin bonding system using Xe Excimer lamp will be put into practice.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した接着手法は、乾燥下で紫外光を照射することで象牙質の表面エネルギーを上昇させ、さらにCO や CO(OH) などの官能基を付与することで接着界面として利用するものである。従来の液相下での処理と比べて接着界面の加水分解が少ない接着システムとなることが期待され、歯科修復治療の予後の向上に貢献しうる点で臨床的、社会的意義は大きい。また、本手法は象牙質だけでなく、金属、樹脂、無機材料といった様々な材料の接着に応用できる可能性を有する。今後は臨床のみならず歯科技工、さらには他領域の材料加工に有用であり、今後応用・発展の可能性が大きいことに学術的意義がある。

Report

(6 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (6 results)

All 2018 2017 2016 2015

All Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] Xeエキシマランプ照射処理後の象牙質のコンポジットレジンとのせん断接着強さ.2018

    • Author(s)
      礪波健一,佐野和信,岩崎直彦,高橋英和,荒木孝二.
    • Organizer
      日本歯科保存学会2018年度秋季学術大会(第149回)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Analysis of the dentin surface after Xe excimer lamp irradiation2017

    • Author(s)
      Ken-ichi Tonami, Shizuko Ichinose, Kazunobu Sano, Naohiko Iwasaki, Hidekazu Takahashi, Shiro Mataki, Kouji Araki
    • Organizer
      2017 IADR/AADR General Session
    • Place of Presentation
      San Francisco (USA)
    • Year and Date
      2017-03-22
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analysis of the dentin surface after Xe excimer lamp irradiation.2017

    • Author(s)
      9.Ken-ichi Tonami, Shizuko Ichinose, Kazunobu Sano, Naohiko Iwasaki, Hidekazu Takahashi, Shiro Mataki, Kouji Araki
    • Organizer
      The 95th General Session & Exhibition of the IADR
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Xeエキシマランプ照射象牙質表面のTEM像2016

    • Author(s)
      7.礪波健一,佐野和信,岩崎直彦,高橋英和,荒木孝二
    • Organizer
      日本歯科保存学会2016年度春季学術大会
    • Place of Presentation
      栃木県総合文化センター(栃木県,宇都宮市)
    • Year and Date
      2016-06-09
    • Related Report
      2016 Research-status Report
  • [Presentation] Xeエキシマランプ照射象牙質表面のTEM像2016

    • Author(s)
      礪波健一,佐野和信,岩崎直彦,高橋英和,荒木孝二
    • Organizer
      日本歯科保存学会春季学術講演
    • Place of Presentation
      宇都宮 栃木県総合文化センター
    • Year and Date
      2016-06-09
    • Related Report
      2015 Research-status Report
  • [Presentation] Xeエキシマランプ照射による象牙質ぬれ性の変化2015

    • Author(s)
      礪波健一,佐野和信,岩崎直彦,高橋英和,荒木孝二
    • Organizer
      日本歯科理工学会
    • Place of Presentation
      仙台市情報・産業プラザ(宮城県・仙台)
    • Year and Date
      2015-04-11 – 2015-04-12
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2020-03-30  

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