2017 Fiscal Year Final Research Report
Study on adhesion system for composite CAD/CAM blocks using molecular control technology
| Project/Area Number |
15K11158
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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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| Research Field |
Prosthodontics/ Dental materials science and
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| Research Institution | Okayama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
滝川 正春 岡山大学, 医歯薬学総合研究科, 教授 (20112063)
吉原 久美子 岡山大学, 大学病院, 助教 (90631581)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 歯科補綴 / 接着歯学 / CAD/CAMブロック / 電子顕微鏡 / サンドブラスト / シランカップリング / 合着 / レジンセメント |
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| Outline of Final Research Achievements |
Since composite CAD / CAM blocks are relatively new materials, laboratory and clinical data are highly needed. Therefore, the structure of composite CAD / CAM blocks was investigated, in particular to assess (1) the effect of sandblasting on their surface topography and (2) the effect of sandblasting and silanization on their bonding receptiveness.
Sandblasting composite CAD / CAM blocks produced not only an irregular surface but also surface and sub-surface cracks. This was especially so for Shofu Block HC, the surface and sub-surface of which was severely damaged. Hence, composite CAD / CAM blocks should be sandblasted with reduced pressure. Silane treatment after sandblasting improved bond strength.
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| Free Research Field |
生体材料学
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