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Improvement in wear resistance of indirect composites

Research Project

Project/Area Number 20592283
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Prosthetic dentistry
Research InstitutionNihon University

Principal Investigator

KOIZUMI Hiroyasu  Nihon University, 歯学部, 講師 (20339229)

Co-Investigator(Kenkyū-buntansha) MATSUMURA Hideo  日本大学, 歯学部, 教授 (40199857)
YONEYAMA Takayuki  日本大学, 歯学部, 教授 (00220773)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords歯学 / 複合材料・物性 / 表面・界面活性 / 表面・界面物性
Research Abstract

The purpose of the current study was to evaluate the influence of light sources on the mechanical properties and wear characteristics of indirect composite materials. The two composite materials used were Estenia C & B and Epricord. Three-body wear test was performed using indirect composite plate specimens, a gold alloy antagonist, and a polymer slurry. Wear depths of Estenia C&B polymerized with Hyper LII, α-Light II, and Labolight LV-II were 5.7, 18.5, and 64.2μm respectively, whereas those of Epricord were 12.9, 18.7, and 48.5μm respectively. Results showed that, after 100,000 cycles of localized loading, high-intensity light sources were effective in enhancing the wear resistance of both composite materials.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (8 results)

All 2011 2009

All Journal Article (8 results) (of which Peer Reviewed: 8 results)

  • [Journal Article] Influence of laboratory light source on the wear characteristics of indirect composites.2011

    • Author(s)
      Hirata M, Koizumi H, Tanoue N, Ogino T, Murakami M, Matsumura H
    • Journal Title

      Dental materials Journal 30

      Pages: 127-135

    • NAID

      10028100290

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Characteristics of light-polymerizable adhesives for bonding retensive beads to cut-back wax surfaces2011

    • Author(s)
      Koizumi H, Kochi M, Honda K, Ayano M, Nagano K, Matsumura H
    • Journal Title

      Asian Pacific Journal of Dentistry 11

      Pages: 15-18

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of two acidic primers on bonding to alumina of two composite luting agents2011

    • Author(s)
      Koizumi H, Nakayama D, Naito K, Kochi M, Honda K, Matsumura H
    • Journal Title

      Asian Pacific Journal of Dentistry 11

      Pages: 9-13

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Influence of laboratory light sources on the wear characteristics of indirect composites2011

    • Author(s)
      Hirata M, Koizumi H, et al., (他4名)
    • Journal Title

      Dental Materials Journal

      Volume: 30(in press)

    • NAID

      10028100290

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characteristics of light-polymerizable adhesives for bonding retentive beads to cut-back wax surfaces2011

    • Author(s)
      Koizumi H, et al., (他5名)
    • Journal Title

      Asian Pacific Journal of Dentistry

      Volume: 11 Pages: 15-18

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of two acidic primers on bonding to alumina of two composite luting agents2011

    • Author(s)
      Koizumi H, et al., (他5名)
    • Journal Title

      Asian Pacific Journal of Dentistry

      Volume: 11 Pages: 9-13

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surface roughness and gloss of indirect composites etched with acidulated phosphate fluoride solution2009

    • Author(s)
      Ohara N, Koizumi H, Matsumoto H, Nakayama D, Ogino T, Matsumura H
    • Journal Title

      Acta Odontologica Scandinavica 67

      Pages: 313-320

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Surface roughness and gloss of indirect composites etched with acidulated phosphate fluoride solution2009

    • Author(s)
      Ohara N, Koizumi H, et al.
    • Journal Title

      Acta Odontologica Scandinavica 67

      Pages: 313-320

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed

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Published: 2008-04-01   Modified: 2016-04-21  

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