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Ultra-morphological analysis of zirconia-veneering ceramic interface

Research Project

Project/Area Number 16K11622
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Prosthodontics/ Dental materials science and
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Kobayashi Kenichi  東京医科歯科大学, 歯学部附属病院, 講師 (00170316)

Co-Investigator(Kenkyū-buntansha) 猪越 正直  東京医科歯科大学, 大学院医歯学総合研究科, 助教 (90753715)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsジルコニア / 陶材 / 界面 / セラミック / 表面処理 / 機械的強度 / サンドブラスト / セラミックス
Outline of Final Research Achievements

The aim of this study was to clarify the zirconia-veneering ceramic interface using ultra-morphological analysis. Surface treatments (grinding, sandblasting) affected the crystal structure of zirconia. However, three surface treatment conditions (as-sintered, ground, sandblasted) resulted in comparable fracture strength of the zirconia-veneering ceramic interface. Ultra-morphological analysis revealed tight interface between zirconia and veneering ceramics.

Academic Significance and Societal Importance of the Research Achievements

本研究では、臨床上遭遇することの多い、ジルコニア・陶材間の破折の原因を究明するため、ジルコニアへの表面処理の影響と、高解像度電子顕微鏡によるジルコニア・陶材界面の解析を行った。ジルコニアに対して表面処理を行うことで、ジルコニアの結晶構造が変化することが明らかとなった。さらに、この表面処理がジルコニア・陶材間の破折強度に与える影響は認められなかったことから、ジルコニアに陶材を築盛する際、表面処理を行う必要がない可能性が示唆された。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (6 results)

All 2018 2017 2016

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Crystallographic and morphological analysis of sandblasted highly translucent dental zirconia2018

    • Author(s)
      Inokoshi Masanao、Shimizu Haruki、Nozaki Kosuke、Takagaki Tomohiro、Yoshihara Kumiko、Nagaoka Noriyuki、Zhang Fei、Vleugels Jozef、Van Meerbeek Bart、Minakuchi Shunsuke
    • Journal Title

      Dental Materials

      Volume: 34 Issue: 3 Pages: 508-518

    • DOI

      10.1016/j.dental.2017.12.008

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Bonding of composite cements to zirconia: A systematic review and meta-analysis of in vitro studies2018

    • Author(s)
      Thammajaruk P, Inokoshi M, Chong S, Guazzato M
    • Journal Title

      Journal of the Mechanical Behavior of Biomedical Materials

      Volume: 80 Pages: 258-268

    • DOI

      10.1016/j.jmbbm.2018.02.008

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 表面処理が前装用陶材・高透光型ジルコニア界面の破壊強度に与える影響2018

    • Author(s)
      猪越正直, 清水春紀, 高垣智博, 水口俊介
    • Organizer
      第37回日本接着歯学会学術大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Crystallographic analysis of alumina sandblasted highly translucent dental zirconia2017

    • Author(s)
      Inokoshi M, Shimizu H, Nozaki K, Takagaki T, Zhang, F, Vleugels J, Van Meerbeek B, Uo M, Minakuchi S.
    • Organizer
      95th General Session and Exhibition of the IADR
    • Place of Presentation
      San Francisco
    • Year and Date
      2017-03-22
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Initial curing characteristics of composite cements under ceramic restorations.2017

    • Author(s)
      Inokoshi M, Nozaki K, Takagaki T, Van Meerbeek B, Minakuchi S.
    • Organizer
      CED-IADR/NOF Oral Health Research Congress 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Influence of surface treatment on the bending strength of zirconia.2016

    • Author(s)
      Inokoshi M, Zhang F, De Munck J, Vanmeensel K, Minakuchi S, Vleugels J, Naert I and Van Meerbeek B.
    • Organizer
      94th General Session & Exhibition of the IADR
    • Place of Presentation
      Seoul
    • Year and Date
      2016-06-22
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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