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Effecs of storage in oral cavity simulated envirorment on dental restorative ceramics

Research Project

Project/Area Number 13470411
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 補綴理工系歯学
Research InstitutionTokyo Medical and Dental University

Principal Investigator

TAKAHASHI Hidekazu  Tokyo Medical & Dental Univ., Associate Professor, 大学院・医歯学総合研究科, 助教授 (90175430)

Co-Investigator(Kenkyū-buntansha) NISHIKAWA Izuru  Osaka Institute of Technology, Professor, 大工学部, 教授 (90189267)
TAKAHIRO Sato  Tokyo Medical & Dental Univ., Research Associate, 大学院・医歯学総合研究科, 助手 (70178747)
KUROSAKI Norimasa  Tokyo Medical & Dental Univ., Professor, 大学院・医歯学総合研究科, 教授 (40014154)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥13,600,000 (Direct Cost: ¥13,600,000)
Fiscal Year 2003: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2002: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2001: ¥10,300,000 (Direct Cost: ¥10,300,000)
KeywordsDental ceramics / Fatigue properties / Oral cavity silumation / Cyclic fatigue / Static fatigue / Crack propagete paremeter / Biaxial flexiral strength / Dentin / 歯冠修復用セラミック / 口腔内疑似環境保管 / 2軸曲げ試験 / ステアケース法 / 亀裂成長進展パラメータ
Research Abstract

In this study, fatigue properties of dental restorative ceramics after oral cavity simulated environment, fracture analysis of clinical case and relationship between basic fatigue behavior and clinical failure of dental ceramics were evaluated. Storage in dilled water at 37 degrees Celsius was selected as oral cavity simulated environment and the biaxial flexural test was employed for evaluating fatigue behavior. Static and cyclic fatigue of two dental restorative ceramics were measured before and after one year storage in oral cavity simulated environment. A castable ceramics exhibited decreases of static and cyclic fatigue properties, while a heat pressable ceramics showed increases of static and cyclic fatigue properties. These phenomena might be due to reaction of surface texture of ceramics with water, but more detailed investigations are required. Effects of longer storage are now continuously investigated.
Moreover, the effect of immersion solutions on bovine dentin on fatigue strength was evaluated and the effects of solutions were considered not significant.
Regarding clinical case of dental ceramics fracture, number of collected fracture cases were a very few. It was necessary to collect more fracture cases for evaluating relationship between the fatigue properties and clinical fracture.
A part of these results were already presented several international scientific meeting such as IADR and preparing for publication.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] Kitazaki H, Takahashi H, et al.: "Effect of amount of grinding on flexural strength of dental ceramics"J Med Dent Sci. 48. 7-13 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Jin J, Takahashi H et al.: "Fatigue Properties of Heat-injectable Ceramics After 1-year Water Storage"J Dent Res. 84(S). (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 高橋英和: "修復物の耐久性"QDT別冊失敗しないメタルセラミックス. 16-23 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takahashi H et al.: "Cyclic and Static Fatigue Strengths of CAD/CAM, Castable and Injectable Ceramics."Archives of Bioceramics Research. 3. 316-321 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Jin J, H Takahashi et al.: "Biaxial Flexural Strength and Three-point Bending Strength of Dental Ceramics."Archives of Bioceramics Research. 3. 267-272 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kaku, M., Takahashi, H, et al.: "Fatigue Crack Growth Exponent of CAD/CAM and Castable Ceramics."J Dent Res. 81(s). 554 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kitazaki H, Takahashi H, et al.: "Effect of amount of grinding on flexural strength of dental ceramics."J Med Dent Sci. 48(1). 7-14 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Jin J, Takahashi H et al.: "Fatigue Properties of Heat-injectable Ceramics After 1-year Water Storage."IADR 82nd General Session, Honolulu, 2004. (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takahashi H.: "Isotropic properties of dent in."Relaible eramcics restoration of QDT. (suppl). 16-23 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Jin J, Takahashi H et al.: "Biaxial Flexural Strength and Three-point Bending Strength of Dental Ceramics."Achives of Biceramics Reserach. 3. 316-321 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takahashi H, Jin J, et al.: "Cyclic and Static Fatigue Strengths of CAD/CAM, Castable and Injectable Ceramics."Archives of Biceramics Research. 3. 267-272 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kaku M, Nakazato T, Takahashi H, et al.: "Fatigue crack growth exponent of CAD/CAM and castable ceramics."J Dent Res. 81(S). 554 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takahashi H et al.: "Cyclic and Static Fatigue Strengths of CAD/CAM, Castable and Injectable Ceramics."Archives of Bioceramics Research. 3. 316-321 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Jin J, et al.: "Fatigue Properties of Heat-injectable Ceramics After 1-year Water Storage"J Dent Res (IADR 82nd General Sessio. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takahashi H et al.: "Fatigue crack growth exponent of bovine dentin"J Dent Res. 81(S). 713 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 金 景月ほか: "Empressss IIの繰返し疲労強度"歯科材料・器械. 21(S39). 140 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 加来 賢ほか: "キャスタブルセラミックスにおける静疲労および繰返し疲労の影響について"日本補綴歯科学会誌. 46・特108. 155 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Jin J, et al.: "Static and Cyclic Fatigue Strength of Heat-Pressed Ceramic"Transaction of 4th International Congress on Dental Materials. 263 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kaku.M., Takahashi, H, et al.: "Fatigue Crack Growth Exponent of CAD/CAM and Castable Ceramics."Journal of Dental Research. 81(S). 554 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 金 景月, 高橋英和, ほか: "Empress2の繰返し疲労強度"歯科材料・器械. 21(S39). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Takahashi, H, et al.: "Fatigue Crack Growth Exponent of Bovine Dentin"Journal of Dental Research. 82(S). (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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