3种偶联剂对铸造纯钛与硬质复合树脂结合强度的影响

发布时间：2018-09-02 05:30

【摘要】：目的研究3种偶联剂对铸造纯钛试件与硬质复合树脂结合强度的影响。方法用牙科铸钛的方法制作40个直径8 mm、高3 mm的圆盘状纯钛试件,与树脂粘接面用碳化硅砂纸在流水下打磨、Al2O3喷砂、4%氢氟酸(HF)酸蚀。试件随机分为4组,每组10个。对照组(A组)、硅烷偶联剂组(B组)、Alloy Primer组(C组)、Metal photo primer组(D组)。然后在试件表面均匀涂布硬质复合树脂,检测其与纯钛试件的剪切强度,并进行统计学分析,同时对断裂面进行扫描电镜(SEM)观察。结果 A、B、C、D组剪切强度分别为(9.773±0.67)、(11.463±0.82)、(14.224±0.75)、(13.157±0.73)MPa。A组与B、C、D组的剪切强度相比差异有统计学意义(P0.01),B组与C、D组的剪切强度相比差异有统计学意义(P0.01),C组与D组的剪切强度相比差异无统计学意义(P0.05)。结论 KH-570硅烷偶联剂、Alloy Primer偶联剂、Metal photo primer偶联剂可以显著提高钛与硬质复合树脂的结合强度,KH-570硅烷偶联剂处理组的结合强度低于Alloy Primer偶联剂组和Metal photo primer偶联剂组。
[Abstract]:Objective to study the effect of three coupling agents on the bond strength between cast pure titanium specimen and hard composite resin. Methods 40 disk pure titanium specimens with a diameter of 8 mm, and 3 mm in height were made by dental casting titanium. The bonded surfaces were ground with silicon carbide sandpaper under flowing water. 4% hydrofluoric acid (HF) acid etching was performed on Al 2O 3 sandblasting. The samples were randomly divided into 4 groups, 10 in each group. Control group (group A), silane coupling agent group (group B), Primer group (group C) and photo primer group (group D). Then the hard composite resin was uniformly coated on the surface of the specimen, the shear strength of the composite resin and the pure titanium specimen was tested, and the fracture surface was observed by (SEM). Results the shear strength of group A (9.773 卤0.67), (11.463 卤0.82), (14.224 卤0.75), (13.157 卤0.73) was significantly higher than that of group B (P0.01). There was no significant difference in shear strength between group C and group D (P0.01). There was no significant difference in shear strength between group C and group D (P0.05). Conclusion the bonding strength of KH-570 silane coupling agent, alloy Primer coupling agent, and photo primer coupling agent can significantly increase the binding strength of titanium to rigid composite resin. The binding strength of KH-570 silane coupling agent treatment group is lower than that of Alloy Primer coupling agent group and Metal photo primer coupling agent group.
【作者单位】：青岛大学医学院附属医院口腔修复科;佳木斯大学附属口腔医院修复科;北京梅晓口腔门诊部;
【基金】：黑龙江省海外学人基金资助项目(1155h021)
【分类号】：R783.1

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