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Development of experimental dentin primer of Lightcured Glass Ionomer Cement

Research Project

Project/Area Number 08557107
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Conservative dentistry
Research InstitutionNihon University

Principal Investigator

ONOSE Hideo  Nihon Univ.Sch.of Dent.Professor, 歯学部, 教授 (70059426)

Co-Investigator(Kenkyū-buntansha) HIROTA Kazuo  GC corporation.Research manager, 研究所, 所長
KANAMARU Toshiro  Nihon Univ.Sch.of Dent.Assistant, 歯学部, 助手 (30277454)
ANDO Susumu  Nihon Univ.Sch.of Dent.Assistant Professor, 歯学部, 講師 (40120365)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥7,300,000 (Direct Cost: ¥7,300,000)
Fiscal Year 1997: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1996: ¥4,600,000 (Direct Cost: ¥4,600,000)
KeywordsLight-cured glass ionomers / Experimental primer / Dentin bond strength / SEM Observation / Thermal stress / サーマルサイクル試験 / リン酸エステルモノマー / 剪断接着強さ / カルボン酸エステルモノマー
Research Abstract

Light-cured glass ionomer cement are said to be inferior compared to resin composites on dentin bond strength.
The aim of this research project was to develop a dentin primer which improve the dentin bond strength of light-cured glass ionomer cement. Several experimental primers were employed. Functional monomers used in experimental primers were phosphate ester monomers, bis-metacryloxyethyl phosphate (Bis-MEP) and 10-methacryloxydecil phosphate (MDP), and carbonic acid monomers, 6-methacryloxyethyl naphtalene-1,2,6-tricaboxylate anhydride (MENTA) and 4-methacryloxyethyl trimellitate anhydride (4+META). Ethanol (EtOH) and 2-hydroxyethelmethacrylate (HEMA) were added to these monomers, rations between 0 and 50% to from the experimental primers.
this study was to evaluate experimental dentin primers, which have the efficacy of improving dentin boud strength, by means of dentin bond strength, SEM observation and thermally stress test.
The result were as follows :
1.The highest bond strength was obtained when the primer containing phosphate ester monomers (Bis-MEP) was used. The optimum composition of the experimental primer was 5 wt% Bis-MEP, 20 wt% EtOH, and 35 wt% HEMA.
2.The bonding interface between Light-cured glass ionomer cements and dentin were observed cement a matrix-dentin interdiffusion layr between the cement and dentin when the experimental primers were employed.
3.The dentin bond strength decreased when the thermal stress were added and the highest bond strength was obtained when the primer containing Bis-MEP was used.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 岩崎 圭祐, 安藤 進, 小野瀬 英雄 他: "光硬化型グラスアイオノマーセメントに関する研究 -とくに試作プライマーを用いた象牙質接着界面の電顕的観察について-" 日本歯科保存学雑誌. 40・4. 1063-1071 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 川又 稔: "光硬化型グラスアイオノマーセメントに関する研究 -とくに試作プライマーがその象牙質接着強さにおよぼす影響について-" 日本歯科保存学雑誌. 40・6. 1378-1386 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Keisuke Iwasaki, Mikitake Sato, Kohzo Fukuishi, Keishi Tubota, Shinsaku Sanada, Masashi Miyazaki, Susumu Ando and Hideo Onose: "Study on Light-Cured Type II Glass Ionomer Cements-SEM Observation of the Bonding Interface between Glass-ionomer Cement and Human Dentin Primed with Experimental Primers-." Jpn J.Consev Dent. 40. 1062-1070 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Minoru Kawamata: "Study on Light-cured Type II Glass-ionomer cements-Influence of Composition of Experimental Dentin Primer on Bond Strength to Bovine Dentin-" Jpn J.Consev Dent. 40. 1378-1386 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 岩崎圭祐,安藤進,小野瀬英雄 他: "光硬化型グラスアイオノマーセメントに関する研究 -とくに試作プライマーを用いた象牙質接着界面の電顕的観察について-" 日本歯科保存学雑誌. 40・4. 1063-1071 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 川又 稔: "光硬化型グラスアイオノマーセメントに関する研究 -とくに試作プライマーがその象牙質接着強さにおよぼす影響について-" 日本歯科保存学雑誌. 40・6. 1378-1386 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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