牙本质黏结强度的长期耐久性。

M. Burrow, J. Tagami, Hiroyasu Hosoda
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引用次数: 37

摘要

本研究的目的是调查耐久性,在整个一年中,使用各种商业和实验粘结系统的牛牙本质的拉伸粘结强度(TBS)。标本保存在含有石膏片和叠氮化钠的离子交换水中。从结果中得出结论,TBS随时间的变化并不均匀,但通常观察到显着下降。对于Super Bond D-liner和KB-100, TBS最高,且在试验期间表现出显著的稳定性。骨折模式根据所使用的治疗系统而变化,与TBS无关。通常,随着时间的推移,断裂模式倾向于显示树脂内粘接/内聚破坏的增加。Super Bond D-liner在齿界面处先发生粘结型破坏,而后发生杂化层破坏。KB-100在一年内的失效变化很小,通常是粘合树脂和树脂复合材料之间的粘合剂。本研究的结果表明,需要对所有粘结体系进行耐久性研究,以进行基本评估。结果表明,使用受控的存储溶液是很重要的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The long term durability of bond strengths to dentin.
The aim of this study was to investigate the durability, throughout one year, of tensile bond strengths (TBS) to bovine dentin using various commercial and experimental bonding systems. Specimens were stored in a controlled solution of ion-exchanged water containing plaster chips and sodium azide. From the results it was concluded that the changes in TBS were not uniform over time, but a significant decrease was usually observed. For Super Bond D-liner and KB-100, the TBS were the highest and exhibited remarkable stability over the test period. The mode of fracture was noted to vary depending on the treatment system used, and was independent of TBS. Generally, the fracture mode tended to show increases in adhesive/cohesive failures within the resin over time. Super Bond D-liner always exhibited adhesive type failure at the tooth interface, and later involved failure in the hybrid layer. KB-100 showed very little change in failure over one year, being usually adhesive between bonding resin and resin composite. The results from this study indicate the need to carry out durability studies for the basic evaluation of all bonding systems. It was shown that the use of a controlled storage solution is important.
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