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- KUSUNOKI Mizuho
- Department of Clinical Cariology, Showa University School of Dentistry
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- ITOH Kazuo
- Department of Clinical Cariology, Showa University School of Dentistry
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- OIKAWA Misa
- Department of Clinical Cariology, Showa University School of Dentistry
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- HISAMITSU Hisashi
- Department of Clinical Cariology, Showa University School of Dentistry
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抄録
Previously, we reported that the integrity of a resin composite restoration deteriorated when the dentin cavity wall was decalcified by conditioning. In this study, to evaluate the bonding between dentin adhesive and non-decalcified dentin surface, we experimented with a novel method of using a high-pressure water spray device to prepare smear layer-free dentin surfaces. When the smear layer was removed, shear bond strength significantly increased regardless of the removal method employed. Further, with glyceryl monomethacrylate (GM) priming, no significant differences in bond strength were observed among these smear layer removal methods: ethylenediamine tetraacetic acid (EDTA) conditioning, phosphoric acid conditioning, and removal by water spray. It was also found that GM priming was key to achieving marginal integrity, whereas contraction gap width increased with phosphoric acid conditioning. It was thus concluded that the efficacy of a dentin adhesive should be evaluated by consistently observing the contraction gap in three-dimensional cavities rather than by mere measurement of bond strength to a flat dentin surface.
収録刊行物
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- Dental Materials Journal
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Dental Materials Journal 29 (2), 199-205, 2010
一般社団法人 日本歯科理工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204717642880
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- NII論文ID
- 10026192996
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- NII書誌ID
- AA10443149
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- ISSN
- 18811361
- 02874547
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可