2015 Fiscal Year Final Research Report
Three-dimensional X-ray micro-computed tomography analysis of polymerization shrinkage vectors in flowable composite
| Project/Area Number |
26861611
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Conservative dentistry
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| Research Institution | Kanagawa Dental College |
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Principal Investigator |
Takemura Yukihiko 神奈川歯科大学, 歯学研究科(研究院), 助教 (80573584)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | フロアブルレジン / 重合収縮 / ３D分析 / 収縮ベクトル / マイクロCT |
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| Outline of Final Research Achievements |
The polymerization shrinkage of flowable resin composites was evaluated using air bubbles as traceable markers.Three different surface treatments i.e. an adhesive silane coupling agent, a separating silane coupling agent, and a combination of both, were applied to standard cavities. Before and after polymerization, X-ray micro-computed tomography images were recorded. Their superimposition and comparison allowed position changes of the markers to be visualized as vectors. The movement of the markers in the resin composite was, therefore, quantitatively evaluated from the tomographic images.Adhesion was found to significantly influence shrinkage patterns. The method used here could be employed to visualize shrinkage vectors and shrinkage volume.
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| Free Research Field |
保存修復
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