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Study on Reinforced Composite Resin Restorations by Inserting with the Megafillers

Research Project

Project/Area Number 07557124
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section試験
Research Field 補綴理工系歯学
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

TANI Yoshiaki  Kyoto University, Research Center for Biomedical Engineering, Professor, 生体医療工学研究センター, 教授 (90026881)

Co-Investigator(Kenkyū-buntansha) NAMBU Toshiyuki  LIFE TEC INSTITUTE,Co.Derector, 所長
ISHIKAWA Akiko  Nippon Dental University, School of Dentistry, Assistant Professor, 歯学部, 講師 (50176153)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1996: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1995: ¥3,200,000 (Direct Cost: ¥3,200,000)
KeywordsDental Materials / Dental Restorative Materials / Composite Resin / Composite Resin Restoratives / Megafiller / 歯科用修復剤 / コンポジットレジン修復剤
Research Abstract

We evaluated the effects of inserting "Megfiller" to composite resin restorations on the polymerization contraction force and the polymerization shrinkage rate firstly. The materials used for the determination included chemically cured composites and light-cured composites. The system for measuring contraction force consisted of a transparent teflon tube for preparing the specimen, a small load cell, a dynamic strain guage and a pen-recorder. Linear polymerization shrinkage of the composites was measured every 10 seconds from the start of mixing or irradiation to 90 minutes by the mercury bath medhod. The results suggested that "Megafiller" was markedly effective in reducing polymerization shrinkage, but was not always effective in reducing the contraction force during polymerization. In the next study, we examined the effects of "Megafiller" insertion on wear resistance evaluated by the glass beads abrasion test, and the conventioinal toothbrushing abrasion test. The depth of wear was determined by measuring the thickness of the specimens before and after the wear tests using a profile projector accurate to 1 um. In general, the depth of wear of the composites was reduced by "Megafiller" insertion, but the differences in the depth of wear between composites with and without the megafiller were not significant except for a few materials. There were slight differences in the wetness of the megafiller in some composite resins. At the present, we are determinig the effect of several type ceramic megafillers (phi1mm) insertion on the coefficient of thermal expansion of composite resins.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] 谷 嘉明: "コンポジットレジン修復におけるMegafillerの応用" 京都大学生体医療工学研究センター学術講演会講演要旨集. 1995年度. 9-10 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yoshiaki Tani: "Dentin Surface Treatment without Acids" Dental Materials Journal. 14 (1). 58-69 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akiko Ishikawa: "A Cavity Preparation Method without Attachment of Dentinal Smear Layer" Journal of Dental Research. 74. 37 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yoshiaki Tani: "Marginal Fracture Toughness of Posterior Composite Resins" Transactions of Fifth World Biomaterials Congress. 2. 758 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akiko Ishikawa: "Comparison of Two Methods for Measuring Wear of Composite Resins" Transactions of 1996 Academy of Dental Materials. 9. 237 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yoshiaki Tani: "Clinical Efficacy of Glass-Ceramic Megafillers into Composite Resin Restorations" Transactions of 1996 Academy of Dental Materials. 9. 278 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 谷 嘉明他: "人工臓器1994-95,歯科用材料の新展開" 中山書店, 312 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 谷 嘉明(分担執筆): "デンタルオリンピア95-21世紀の歯科医療" 歯科薬出版(株), 352 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.Tani, T.Nambu, A.Ishikawa et al: "Application of the Megafiller for Composite Resin Restorations." Transactions of the 1995 Annual Conference of Research Center for Biomedical Engineering. 9-10 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.Tani and T.Togaya: "Dentin Surface Treatment without Acids." Dental Materials Journal. 14(1). 58-69 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Ishikawa, Y.Tani et al: "A Cavity Preparation Method without Attachment of Dentinal Smear Layr." Journal of Dental Research. 74(Special lssue). 37 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.Tani, A.Ishikawa et al: "Marginal Fracture Toughness of Posterior Composite Resins." Transactions of Fifth World Biomaterials Congress. 2. 758 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Ishikawa and Y.Tani: "Comparison of Two Methods for Measuring Wear of Composite Resins" Transactions of 1996 Academy of Dental Materials. 9. 237 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.Tani and A.Ishikawa: "Clinical Efficacy of Glass-Ceramic Megafillers into Composite Resin Restorations." Transactions of 1996 Academy of Dental Materials. 9. 278 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.Tani et al: "New Development of Dental Materials." Artificial Organs-1994-95, Nakayama Publishing. 260-264 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.Tani: "Dental Restoration in Consideration of Dental "QOL"." Dental Olympia 95'-Dental Therapy for 21st Century, Ishiyaku Publishing. 108-110 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 谷嘉明: "コンポジットレジン修復におけるMegafillerの応用" 京都大学生体医療工学研究センター学術講演会講演要旨集. 1995年度. 9-10 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yishiaki Tani: "Dentin Surface Treatment without Acids" Dental Materials Journal. 14(1). 58-69 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Akiko Ishikawa: "A Cavity Preparation Method without Attachment" Journal of Dental Research. 74. 37- (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yoshiaki Tani: "Marginal Fracture Toughness of Posterior Composite Resins" Transactions of Fifth World Biomaterials Congress. 2. 758- (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Akiko Ishikawa: "Comparison of Two Methods for Measuring Wear of Composite Resins" Transactions of 1996 Academy of Dental Materials. 9. 237- (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yoshiaki Tani: "Clinical Efficacy of Glass-Ceramic Megafillers into Composite Resin Restorations" Transactions of 1996 Academy of Dental Materials. 9. 278- (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 谷嘉明他: "人工臓器1994-95,歯科用材料の新展開" 中山書店, 312 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 谷嘉明(分担執筆): "デンタルオリンピア95-21世紀の歯科医療" 医歯薬出版(株), 352 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 谷 嘉明: "コンポジットレジン修復におけるMegafillerの応用" 京都大学生体医療工学研究センター 学術講演会講演要旨集. 1995年度. 9-10 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yoshiaki Tani: "Dentin Surface Treatment without Acids" DENTAL MATERIALS JOURNAL. 14. 58-69 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Akiko Ishikawa: "A Cavity Preparation Method without Attachment of Dentinal Smear Layer" JOURNAL OF DENTAL RESEARCH. 74. 37 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 谷 嘉明: "人工臓器1994-95, 歯科用材料の新展開" 中山書店, 312 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Leo J. Miserendino(ed): "Lasers in Dentistry. 16. Laser Processing of Dental Materials" Quintessence Publishing, U. S. A., 341 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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