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アブストラクト（33巻1号：神奈川歯学）
Japanese
| Title ： | 象牙質接着システムの接着特性について -剪断接着強さと破壊様式の関係- |
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| Subtitle ： | 原著 |
| Authors ： | 長尾大輔, 花岡孝治, 寺中敏夫 |
| Authors（kana） ： | |
| Organization ： | 神奈川歯科大学歯科保存学講座 |
| Journal ： | 神奈川歯学 |
| Volume ： | 33 |
| Number ： | 1 |
| Page ： | 40-51 |
| Year/Month ： | 1998 / 3 |
| Article ： | 原著 |
| Publisher ： | 神奈川歯科大学学会 |
| Abstract ： | 「緒言」 象牙質への接着性を向上させるため, 現在, 多くの象牙質接着システムは種々のデンティンプライマーを備えている. これは親水性の象牙質面に対するボンディング材の"ぬれ"を向上させるためであり, その先駆けとなったのは, 1984年のMunksgaardらによる2-hydroxyethylmethacrylate (HEMA)とglutaraldehydeを主成分とするデンティンプライマー(Gluma)の研究である. これ以後, 保存修復分野において接着性コンポジットレジンの臨床応用が広汎かつ急速に進み, 臨床性能をさらに向上させるため多くの歯質接着システムの開発, 研究が行われ, 種々の歯質浸透性モノマーの併用などにより, 第3世代象牙質接着システムの接着能はエナメル質に対するそれとほぼ同程度にまで向上し, 接着強さが20MPaを越える製品も報告されている. これら第3世代の象牙質接着システムの接着力が向上するにつれ, 接着試験後の破壊面は従来の接着システムに比べより複雑な様相を呈すると思われる. |
| Practice ： | 歯科学 |
| Keywords ： | 剪断接着強さ, 破壊様式, 象牙質接着 |
English
| Title ： | Adhesive Characteristics of Dentin Adhesive Systems -Relationship between the Shear Bond Strength and Fracture Behavior- |
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| Subtitle ： | |
| Authors ： | Daisuke NAGAO, Koji HANAOKA, Toshio TERANAKA |
| Authors（kana） ： | |
| Organization ： | Department of Operative Dentistry and Endodontics, Kanagawa Dental College |
| Journal ： | Kanagawa Shigaku |
| Volume ： | 33 |
| Number ： | 1 |
| Page ： | 40-51 |
| Year/Month ： | 1998 / 3 |
| Article ： | Original article |
| Publisher ： | Kanagawa Odontological Society |
| Abstract ： | [Abstract] The purposes of this study were 1) to compare the shear bond strength of five commercially available third generation dentin bonding systems and 2) to identify the relationship between shear bond strength and the fracture behavior of the upper one-third of the fractured surface. Five commercially available dentin bonding systems, Scotchbond Multi-Purpose (SMP), Liner Bond (LB), Bondwell LC (BW), Liner Bond II (LB II), and Imperva Bond (IB) were applied to bovine dentin surfaces. The shear bond strength was measured, and the fractured dentin and composite surfaces were examined by SEM. The results were as follows : 1. The shear bond strength of LB II, SMP were significantly higher than those of LB, and BW (p<0.01). 2. Active treatment of IB system did not show a statistically significant effect on the shear bond strength. 3. From SEM observation of LB, it was suggested that the tensile stress was produced on the upper half, while compressive stress was produced on the lower half of the specimen during the shear bond test. 4. The shear bond strength of specimens showing complete adhesive failure on the upper one-third were significantly lower than those of mixed failures involving both adhesive and cohesive failure of dentin and/or composite. 5. The specimens showing cohesive failure of dentin on the upper one-third exhibited higher bonding strength. The correlation between the bond strength and ratio of cohesive failure of dentin was obtained from the results of measurements. 6. In case of evaluating the relation of the shear bond strength and fracture analysis, it is conceivable that the obsevation of the upper one-third and the whole fractured surface is extremely important. |
| Practice ： | Dentistry |
| Keywords ： |
