Evaluation of Shrinkage Displacement Fields in Light Cure Composite Resin by Digital Image Correlation Method
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- FURUKAWA Taichi
- 九州大学総合理工学府
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- ARAKAWA Kazuo
- 九州大学応用力学研究所
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- MORITA Yasuyuki
- 九州大学応用力学研究所
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- UCHINO Masakazu
- 福岡県工業技術センター
Bibliographic Information
- Other Title
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- デジタル画像相関法を用いた光重合型コンポジットレジンの収縮変位場評価
- デジタル ガゾウ ソウカンホウ オ モチイタ ヒカリ ジュウゴウガタ コンポジット レジン ノ シュウシュク ヘンイジョウ ヒョウカ
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Abstract
A digital image correlation method was applied to study the polymerization shrinkage of a light cure resin composite in cavities of bovine teeth. A cylindrical cavity prepared using a bonding agent was employed to measure the shrinkage behavior on the top free surface of the cavity. A semi-cylindrical cavity was also used to simulate the cross section of the cylindrical cavity. The resin filled in the cavity was irradiated using a visible-light curing unit and photographed with a CCD camera as a function of time. The cavities prepared without the bonding agent were employed to study the bonding strength at the interface between the resin and tooth substrate, and the following results were obtained. The shrinkage behavior was largely different in the cavities prepared with and without the bonding agent. With the bonding agent, the displacement distribution was continuous at the interface, and its absolute value exhibited the maximum in the resin close to the interface and the minimum near the center of the cavity. Without the bonding agent, there existed the interface which exhibited the discontinuous distribution, and the discontinuity tended to initiate and grow locally at the interface.
Journal
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- Journal of the Japanese Society for Experimental Mechanics
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Journal of the Japanese Society for Experimental Mechanics 8 (2), 115-120, 2008
The Japanese Society for Experimental Mechanics
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Keywords
Details 詳細情報について
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- CRID
- 1390282680167010944
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- NII Article ID
- 10021155775
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- NII Book ID
- AA11822914
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- ISSN
- 18844219
- 13464930
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- NDL BIB ID
- 9568768
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed