Four-year water degradation of total-etch adhesives bonded to dentin
Four-year water degradation of total-etch adhesives bonded to dentin
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DOI：
10.1177/154405910308200212
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发表时间：
2003-02-01
影响因子：
7.6
通讯作者：
Vanherle, G
中科院分区：
文献类型：
--
作者：
De Munck, J;Van Meerbeek, B;Vanherle, G
树脂-牙本质粘结会随着时间的推移而降解。本研究的目的是评估变量的影响，如杂交有效性和扩散/洗脱的界面组件的降解。检验的假设为：（1）两步和三步全酸蚀粘合剂随时间的降解没有差异;（2）复合材料-牙釉质粘合剂保护相邻的复合材料-牙本质粘合剂免受降解。比较2种三步全酸蚀粘接剂和2种两步全酸蚀粘接剂在水中保存4年后与牙本质的微拉伸粘接强度。定量和定性失效分析进行了相关的Fe-SEM和TEM。间接暴露于水不会显著降低任何粘合剂的muTBS，而直接暴露导致两种两步粘合剂的muTBS显著降低。它的结论是，树脂粘结到牙釉质保护树脂牙本质键对降解，而直接暴露于水4年的影响债券产生的两步全蚀刻粘合剂。
Resin-dentin bonds degrade over time. The objective of this study was to evaluate the influence of variables like hybridization effectiveness and diffusion/elution of interface components on degradation. Hypotheses tested were: (1) There is no difference in degradation over time between two- and three-step total-etch adhesives; and (2) a composite-enamel bond protects the adjacent composite-dentin bond against degradation. The micro-tensile bond strength (muTBS) to dentin of 2 three-step total-etch adhesives was compared with that of 2 two-step total-etch adhesives after 4 years of storage in water. Quantitative and qualitative failure analyses were conducted correlating Fe-SEM and TEM. Indirect exposure to water did not significantly reduce the muTBS of any adhesive, while direct exposure resulted in a significantly reduced muTBS of both two-step adhesives. It is concluded that resin bonded to enamel protected the resin-dentin bond against degradation, while direct exposure to water for 4 years affected bonds produced by two-step total-etch adhesives.