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Study on Reinforced Composite Resin Restorations by Inserting with Spherical Megafillers

Research Project

Project/Area Number 10470422
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 InstitutionNippon Dental University

Principal Investigator

ISHIKAWA Akiko  Nippon Dental University, at Tokyo, Operative Dentistry, Associate Professor, 歯学部, 講師 (50176153)

Co-Investigator(Kenkyū-buntansha) TANI Yoshiaki  Engineering, East Asia University, Professor, 工学部, 教授 (90026881)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥10,300,000 (Direct Cost: ¥10,300,000)
Fiscal Year 1999: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1998: ¥7,600,000 (Direct Cost: ¥7,600,000)
KeywordsComposite Resin / Megafiller / Spherical zmegafiller / Coefficient of Thermal Expansion / Surface Gloss / Clinical Evaluation of Composite Resin / Composite Resin of physical properties / 球状セラミックメガフィラー / 球状メガフィラー / 歯科用修復材 / 歯科用コンポジットレジン
Research Abstract

We have previously reported that the insertion of Beta Quartz Glass Ceramic inserts into a composite resin greatly reduced the polymerization shrinkage and the coefficient of thermal expansion in vitro. But, The megafiller has to be inserted completely inside the composite resin to avoid exposing megafiller on the surface of the restoration clinically. The purpose of this study was to determine the coefficient of thermal expansion of three different types of composite resins inserted with the spherical ceramic megaffiler (φ1 mm) of alumina or zirconia ceramics using a thermomechanical analyzer (Thermofirex, Rigaku Co.). Three cylindrical specimen (φ4 mm×10 mm) of each of the composite resins were prepared. The composite resins used in this study were Clearfil AP-P as highly loaded type composite, Palfique Estelite as submicrofilled composite and Heliomolar Rediopaque as microfilled composite. The specimen was kept in 37℃ water for 48 hours and dried in oven at 37℃. Once, the specimen g … More radually heated up to 90℃ and gradually cooled down to 20℃. Again, the specimen uniformly raised up to 90℃ in the thermomechanical analyzer. The coefficient of thermal expansion was measured at the range of 35℃〜80℃ with a straight line. Results are as follows. Clearfil AP-X with 10% alumina showed 25.3×10, 30% alumina was 23.3.×10, 50%-22.4×10, whereas 0% showed 36.7×10. Palfique Estelite with 10% alumina showed 54.8, 30%-49.2, 50%-43.4, whereas 0% showed 64.2. Heliomolar Radiopaque with 10% alumina showed 73.8, 30%-66.2, 50%-62.2, whereas 0% showed 76.0. Clearfil AP-X with 0% zirconia showed 36.7, 10%-57.3, 30%-43.0, 50%-33.4. Heliomolar Radiopaque with 0% zirconia showed 76.0, 10%-67.5, 30%-58.1, 50%-47.1. The coefficient of thermal expansion reduced as increasing amount of spherical ceramic megafillers, and zirconia ceramics was more effective than alumina ceramics. Surface gloss was measured using a gloss meter (VG-2000, Nippon Denshoku Co.). Surface gloss measurement was undertaken with 60 of the angle of incidence and 60 of the acceptance. Surface gloss of the composites were given as same as the gloss of composites without megafillers. When we applied clinically, we have no problem on the cavity deeper more than 1.5 mm. The cavity floor was laid thinner with composite resin paste beforehand. Several particles of megafillers sticked once at the tip of filling instrument inserted into the composite resin without use of tweezers. Megafillers treated with silance coupling agent well bonded to composite. It was concluded that the reinforced composite restoration by inserting with spherical ceramic magafillers was very useful clinically. Less

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] 谷嘉明: "歯科医療を通して観た歯科材料"Journal of Dental Engineering. No.124. 37-40 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 石川明子: "LITEFIL A&Pの11年間の経過観察"デンタル・エコー. No.112. 42-49 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 谷嘉明: "歯科医療における歯科材料"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. No.1. 9-14 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akiko Ishikawa: "Surface Roughness at Different Polishing Stage of Universal Type Composites"Journal of Dental Research. 77A. 240 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akiko Ishikawa: "Thermal Expansion of Composite Resins Inserted with Spherical Ceramic Megafillers"Transactions of 1998 Annual Meeting of Academy of Dental Materials. 12・1. 234 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yoshiaki Tani: "Current Progress of Dental Materials and Devices in Japan"Transactions of 1998 Annual Meeting of Korean Research Society for Dental Mater.. 10・1. 3-5 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yoshida, K.: "Osteoinduction Capability of recombinant human bone morphogenetic protein-2 intramuscular and subcutaneous sites"Journal of Cranio-Maxillofacial Surgery. 26. 112-115 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ishikawa, A.: "Surface Gloss at Different Polishing Stage of Universal Type Composites"Journal of Dental Research. 78. 482 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Okubo, Y.: "Comparative Study of Intramuscalar and Intraskeletal Osteoge-nisis by Recombinant Human Bone Morphogenentic Protein-2"Oral Surgery Dral Medicine Oral Pathogy. 87. 34-38 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Bessho, K.: "Comparison of Recombinant and Purified Human Bone Morphogenetic Protein"British Journal of Oral & Maxillofacial Surgery. 37. 2-5 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ishikawa, A.: "Surface Gloss of Newly Developed Composite Resins"Transactions of Academy of Dental Materials. 13. 134 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tani, Y.: "Role of the Dental Materials in Dental medicine."Journal of Dental Enginnering. 124. 37-40 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] ishikawa, A.: "Eleven-year Clinical Evaluation of LITE-FIL A&P."Dental Echo. 112. 42-49 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tani, Y.: "Role of Dental Biomaterials."Transaction of 1997 Annual Meeting of Research Center for Biomedical Engineering, Kyoto University. 1. 9-14 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ishikawa, A.: "Surface Roughness at Different polishing Stage of Universal Type Composites."Journal of Dental Research. 77A. 240 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ishikawa, A.: "Thermal Expansion of Composite Resins Inserted with Spherical Ceramic Megafillers."Transactions of 1998 Annual Meeting of Academy of Dental Materials. 12・1. 234 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tani, Y.: "Current Progress of Dental Materials and Devices in Japan."Transactions of 1998 Annual Meeting of Korean Research Society for Dental Mater. 10・1. 3-5 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yoshida, K.: "Osteoinduction Capability of recombinant human bone morphogenetic Protein-2 intramuscular and subcutaneous sites. : An Experimental study."Journal of Crani-Maxillofacil Surgery. 26. 112-115 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ishikawa, A.: "Surface Gloss at Different Polishing Stage of Universal Type Composites."Journal of Dental Research. 78. 482 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Okubo, Y.: "Comparative Study of Intramuscalar and Intraskeletal Osteogenesis by Recombinant Human Bone Morphogenetic Protrin-2."Oral Surgery Oral Medicine Oral Pathogy. 87. 34-38 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Bassho, K.: "Comparison of Recombinant and Purified Human Bone Morphogenetic Protein."British Journal of Oral & Maxillofacial Surgery. 37. 2-5 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ishikawa, A.: "Surface Gloss of Newly Developed Composite Resins."Transactions of Academy of Dental Materials. 13. 134 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Okubo, Y: "Comparative study of intramuscurlar and intraskeletal osteogenesis by recombinant human bone morphogonetic protein-2"Oral Surgery Oral Medicine Oral Pathology. 87. 34-38 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Bessho, K: "Comparison of recombinant and purified human bone morphpgenetic protein"British Journal of Oral Maxill of acial Surgery. 37. 2-5 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Ishikawa, A: "Surface Gloss of Newly Developed Composite Resins"Transactions of Academy of Dental Materials. 13. 134 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 谷 嘉明: "歯科医療を通して観た歯科材料" Journal of Dental Engineering. No.124. 37-40 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 石川 明子: "LITEFIL A&Pの11年間の経過観察" デンタル・エコー. No.112. 42-49 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 谷 嘉明: "歯科医療における歯科材料" 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. No.1. 9-14 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Akiko Ishikawa: "Surface Roughness at Different Polishing Stage of Universal Type Composites" Journal of Dental Research. 77A. 240 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Akiko Ishikawa: "Thermal Expansion of Composite Resins Inserted with Spherical Ceramic Megafillers" Transactions of 1998 Annual Meeting of Academy of Dental Materials. 12 1. 234 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yoshiaki Tani: "Current Progress of Dental Materials and Devices in Japan" Transactions of 1998 Annual Meeting of Korean Research Society for Dental Mater.10 1. 3-5 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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