不同表面处理方法对纤维桩与树脂黏结强度的影响

发布时间：2018-08-05 19:32

【摘要】：目的 :比较5种不同表面处理方法对纤维桩黏结强度的影响。方法 :50根纤维桩按照表面处理方法的不同,随机分为5组,A组为硅烷偶联剂组(Clearfil Porcelain Bond Activator,Kuraray),B组为硅烷偶联剂+黏结剂组(A+Clearfil SE Bond,Kuraray),C组为过氧化氢组(30%H2O2溶液),D组为过氧化氢+硅烷偶联剂组(C+A),E组为对照组。分别与树脂黏结剂黏结后,每组再平均分成2个小组,1组37℃生理盐水保存24 h后进行微拉伸强度测试,1组37℃生理盐水保存24 h后进行10000次冷热循环再进行微拉伸强度测试。采用SPSS17.0软件包对数据进行统计学分析。结果:冷热循环前A组~E组的微拉伸黏结强度分别为(6.7±0.7)、(14.4±1.1)、(10.7±0.9)、(16.0±1.0)和(6.7±1.0)MPa,冷热循环后,A组~E组的微拉伸黏结强度分别为(6.0±0.7)、(13.1±0.7)、(9.0±0.7)、(15.0±0.9)和(5.6±0.7)MPa。除硅烷偶联剂组与对照组之间外,其余各组之间差异均有显著性(P0.05),其中,过氧化氢+硅烷偶联剂组黏结强度最大。各组之间在冷热循环前、后的微拉伸黏结强度差异均有显著性(P0.05)。结论:温度疲劳循环可以降低5种表面处理的纤维桩与树脂间的黏结强度,30%H2O2溶液处理纤维桩后再使用硅烷偶联剂,可显著增加纤维桩与树脂之间的黏结强度。
[Abstract]:Objective: to compare the effect of five different surface treatment methods on the bond strength of fiber pile. Methods: 50 fiber piles are treated differently according to the surface treatment method. Five groups were randomly divided into five groups: silane coupling agent group (Clearfil Porcelain Bond Activator Kuraray) silane coupling agent group (group B, silane coupling agent group, (A Clearfil SE Bondna Kuraray group) group C, hydrogen peroxide group (30%H2O2 solution), group D, hydrogen peroxide silane coupling agent group, (C A) group, group E as control group. After bonding with resin binder, each group was divided into two groups: group 1 (group 1) was stored at 37 鈩，

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