2023 Fiscal Year Final Research Report
Application of multifunctional acrylate and long-chain silane coupling agent.
| Project/Area Number |
21K10001
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 57050:Prosthodontics-related
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| Research Institution | Okayama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
吉原 久美子 国立研究開発法人産業技術総合研究所, 生命工学領域, 主任研究員 (90631581)
長岡 紀幸 岡山大学, 医歯薬学域, 助教 (70304326)
西谷 佳浩 鹿児島大学, 医歯学域歯学系, 教授 (60325123)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 接着 / シランカップリング / アクリレート / セラミック / メタクリレート |
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| Outline of Final Research Achievements |
The addition of multifunctional acrylate monomers could improve the flexural properties of PMMA, and the bond strength between the resin with the addition of the acrylate monomer and CAD/CAM ceramic blocks was affected by the type and/or amount of added monomers. The bonding effects of silane coupling agents and acrylate monomers on the CAD/CAM materials differed depending on their respective additional agents, and their synergistic effects on the material specificity were also noted. On feldspathic glass ceramic, acrylate monomers were less effective and acted as inhibiting factors depending on the amount of addition. On lithium disilicate glass ceramic, differences in adhesive properties were observed depending on the type and concentration of silane coupling agents and acrylate monomers. On hybrid glass ceramics, bond strength tended to increase with the amount of acrylate addition.
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| Free Research Field |
補綴理工系
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| Academic Significance and Societal Importance of the Research Achievements |
従来のシランカップリング剤よりも高い疎水性を有する長鎖シランカップリング剤とラジカル重合の反応性が高く，特に光照射に対する重合性に優れたアクリロイル基を用いた表面処理剤を使用した材料表面の改質は，メタルフリー修復に使用されるCAD/CAM材料の種類によってその効果は異なるものの，重合体の可とう性を向上することも招来され，メタルフリー修復の良好な長期的予後に寄与する可能性が示唆された．
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