| Project/Area Number |
11671895
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Conservative dentistry
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| Research Institution | OKAYAMA UNIVERSITY |
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Principal Investigator |
ITOU Kousuke (2000) Dental School, OKAYAMA UNIVERSITY, Instructor, 歯学部, 助手 (50294418)
濱 和洋 (1999) 岡山大学, 歯学部, 助手 (60228525)
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| Co-Investigator(Kenkyū-buntansha) |
TAKATUKA Tomomasa Dental School, OKAYAMA UNIVERSITY, Instructor, 歯学部, 助手 (20314700)
KONISHI Norifumi Univ.of Hospital of Dentistry, OKAYAMA UNIVERSITY, Assistant professor, 歯学部・附属病院, 講師 (60243466)
TORII Yasuhiro Dental School, OKAYAMA UNIVERSITY, Associate Professor, 歯学部, 助教授 (10188831)
HASHIMOTO Takeshi Univ.of Hospital of Dentistry, OKAYAMA UNIVERSITY, Instructor, 歯学部・附属病院, 助手 (30314701)
伊東 孝介 岡山大学, 歯学部, 助手 (50294418)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
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| Keywords | resin cement / self-etching primer / amino acid derivative / estatic restoration / 重合触媒 / プライマー / デュアルキュア / レジンセメント / 重合率 |
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| Research Abstract |
The demand for esthetic and natural-looking restoration has been extended to the restoration of the posterior teeth in recent years. The development of resin cement for ceramic materials have enable esthetic posterior inlay restoration. However, it was reported that the wear loss of resin cement was occur and it become cause of the trouble. Hence, the improvement of the resin cement, especially, adhesion of resin to tooth substrates was needed.
The purpose of this study was to investigate the effect of the initiator in self-etching primer on the adhesiveness of resin materials to tooth. Two experimental self-etching primer was prepared. the one is aqueous solution of amino acid derivatives. An amine acid derivative was used as adhesion monomer and initiator. The other is the mixture of mareic acid and HEMA.The tensile bond strength promoted by amino acid derivative (3.4MPa) was higher than that promoted by mareic acid-HEMA mixture. (1.2MPa) The conversion rate of resin was high when used with conbination of amino acid derivatives and N-phenylglycine. The rate was increased with the time.
We concluded that amino acid derivatives was effective for initiator and promoter in the self etching primer
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