2010 Fiscal Year Final Research Report
Polymerization shrinkage mechanism, using micro-CT for tracing filler movement in light cured resin composite.
| Project/Area Number |
20791383
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Conservative dentistry
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| Research Institution | Tokyo Medical and Dental University |
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Principal Investigator |
CHOU Eitetsu Tokyo Medical and Dental University, 歯学部附属病院, 助教 (50431929)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 光重合型コンポジットレジン / 重合収縮 / マイクロX線CT |
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| Research Abstract |
The aim of this study was to evaluate the shrinkage vectors of light-cured composites during polymerization in a deep class I cavity. Experimental resin composite was filled into a box-shaped class I cavity with or without a bonding agent. The polymerization shrinkage vectors depend on both depth and conversion degree. The application of micro-CT is a novel approach to present an overall profile and quantitatively measure shrinkage of dental composites.
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