摘要
目的探讨硅烷偶联剂对复合树脂间粘接强度的影响，为临床提高复合树脂间粘接强度提供依据。方法用混合填料型复合树脂（Filtek P60）制作树脂块；选自酸蚀粘接剂（Clearfil SE Bond, CSE）和通用型粘接剂（Single Bond Universal, SBU）作为复合树脂间粘接剂；并使用硅烷偶联剂（RelyX Ceramic Primer）。根据树脂块表面是否使用硅烷预处理及粘接剂类型分为4组：CSE组，CSE粘接；硅烷＋CSE组，硅烷偶联剂预处理＋CSE粘接；SBU组，SBU粘接；硅烷＋SBU组，硅烷偶联剂预处理＋SBU粘接。各组分别充填复合树脂，光固化。切割粘接树脂块得到20个1 mm×1 mm×14 mm的试样，通过微拉伸测试仪检测微拉伸强度，三维形貌测量激光显微镜下观察断面形貌。用单因素方差分析比较各组微拉伸强度，用卡方检验比较各组断裂类型比例。结果硅烷＋SBU组微拉伸强度[（69.6±3.3）MPa］显著大于其他3组（P〈0.05）；硅烷＋CSE组微拉伸强度[（63.9±3.7）MPa］显著大于CSE组[（55.7±4.2）MPa］和SBU组[（55.4±4.0）MPa] （P〈0.05）；SBU组与CSE组间差异无统计学意义（P〉 0.05）。4组均有粘接断裂、内聚断裂和混合断裂类型，硅烷＋CSE组和硅烷＋SBU组粘接断裂比例的差异无统计学意义（P〉0.05），均分别显著小于CSE组和SBU组（P〈0.05）。结论硅烷偶联剂预处理可提高复合树脂的粘接强度；通用型粘接剂中的硅烷偶联剂并不能提高复合树脂间粘接强度。
ObjectiveTo investigate the effect of silane coupling agent on composite-composite bond strength, and to provide experimental basis for improving composite-composite bond strength clinically.MethodsSelf-etching adhesive Clearfil SE Bond （CSE） and silane-containing universal adhesive Single Bond Universal （SBU） were used as adhesives. A silane coupling agent （RelyX ceramic primer） was tested. P60 resin composite blocks were prepared and divided into 4 groups according to whether silane coupling agent was applied or the type of the adhesives： CSE group, in which CSE was applied as an adhesive; Silane ＋ CSE group, in which the surface was treated with silane coupling agent followed by CSE; SBU group, in which SBU was applied as an adhesive; Silane＋ SBU group, in which the surface was treated with silane coupling agent followed by SBU, then filling a new composite. All the composite blocks were cut into about twenty 1 mm×1 mm×14 mm samples to detect the micro-tensile bond strength. Fractographic analysis were performed under a three-dimensional laser scanning microscope. The micro-tensile bond strength data were analyzed statistically by one-way ANOVA and the failure pattern data were analyzed statistically by Chi-square test.ResultsSilane ＋ SBU group [（69.6 ± 3.3） MPa] showed a significantly higher micro-tensile bond strength than the other groups （P〈0.05）. Silane＋CSE group showed a significantly higher micro-tensile bond strength [（63.9±3.7） MPa] than CSE group [（55.7±4.2） MPa] and SBU group [（55.4±4.0） MPa] （P〈0.05）; There was no significant difference in micro-tensile bond strength between the SBU group and the CSE group （P〉0.05）. Failure patterns in the 4 groups were adhesive failure, cohesive failure and mixed failure. There was no significant difference in the proportion of adhesive failure between the Silane＋CSE group and the Silane＋SBU group, and the proportion of adhesive failure in these two groups were significantly less than that in the CS
作者
邢远航
林斐
岳林
Xing Yuanhang, Lin Fei, Yue Lin(Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology ＆ National Clinical Research Center for Oral Diseases ＆ National Engineering Laboratory for Digital and Material Technology of Stomatology ＆ Beijing Key Laboratory of Digital Stomatology, Beijing 100081, Chin)
出处
《中华口腔医学杂志》
CAS
CSCD
北大核心
2018年第5期328-332,共5页
Chinese Journal of Stomatology
关键词
复合树脂类
拉伸强度
牙本质粘结剂
硅烷偶联剂
Composite resins
Tensile strength
Dentin-bonding agents
Silane coupling agent
