Study for degradation of 1-step adhesive systems affected by residual solvents
| Project/Area Number |
20592218
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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 | Hokkaido University |
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Principal Investigator |
IKEDA Takatsumi 北海道大学, 大学院・歯学研究科, 助教 (90222885)
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| Co-Investigator(Kenkyū-buntansha) |
INOUE Satoshi 北海道大学, 大学病院, 講師 (80184745)
TANAKA Toru 北海道大学, 大学病院, 講師 (90179771)
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| Project Period (FY) |
2008 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 接着システム / 溶媒 / 劣化 / 耐久性 / 1ステップ型 / 接着耐久性 / 接着性修復 / 1ステップ型接着システム / 保存修復学 |
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| Research Abstract |
This study evaluated relationship between bonding performance of 1-step adhesive systems and residual solvent contained in the systems. Bond strengths of the systems were decreased in the both cases of so much residual solvent existed and too much solvent was removed. Optimal amount of the solvents differed in each systems.
In addition, bonding durability of the 1-step adhesive systems was also evaluated after20,000 times of thermal cycling or 12 months of water storage. As the results of that, there was no statistical difference after thermal cycling. However, significant decrease in tensile bond strengths were observed after 12 months of water storage, and the decrease was differ in each adhesive systems.
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Report
(7 results)
Research Products
(8 results)
