摘要
目的:评价用不同方法处理使用氧化锌丁香油糊剂(zinc oxide-eugenol,ZOE)的牙本质表面对牙本质粘接系统微拉伸强度的影响。方法:选择因正畸拔除的完整、无龋前磨牙。用慢速锯去除面牙釉质,对照牙表面不使用ZOE;实验牙在暴露的牙本质表面涂ZOE。1周后,实验试件分别用方法a:机械去除;方法b:超声波清洁+酒精擦拭;方法c:超声波清洁+浮石打磨,3种不同方法去除ZOE。再分别使用2种牙本质粘接系统,用微拉伸法测试粘接强度。结果:单因素方差分析提示不同处理ZOE的方法对牙本质粘接系统的微拉伸粘接强度有显著影响(P<0.05),使用方法a后微拉伸粘接强度仍有显著下降,有统计学意义(P<0.05)。使用方法b和方法c后对微拉伸粘接强度无显著影响(P>0.05)。结论:使用超声波清洁+酒精擦拭或者超声波清洁+浮石打磨能显著降低ZOE对自酸蚀系统Clearfil SE Bond和iBond粘接强度的不利影响。
Objective：To evaluate the effect of eugenol on microtensile bond strength of dentin bonding systems using different strategies to remove ZOE.Methods：Forty premolars were sectioned parallel to the occlusal surface in order to expose dentin.Specimens were divided into four groups.Group 1 was the control group（no contamination）.Others served as the test groups.Dentin surfaces were covered with ZOE and were placed into a humidor at 37 degrees C for one week.Then provisional material was removed by three strategies.The adhesive systems were applied in untreated dentin and treated dentin.Samples were tested in tension in a Microtensile tester at 1 mm/min.Results：Data were statistically analyzed by one-way ANOVA.The mean of microtensile bond strength revealed a significant difference between the control group and the groups using different cleaning procedures.Conclusion：Under the conditions of this study,there was a significantly beneficial effect when the entire surface was finished with bur or ultrasonically cleaned with alcohol.
出处
《口腔医学研究》
CAS
CSCD
2007年第5期526-528,共3页
Journal of Oral Science Research
关键词
丁香油酚
牙本质粘接系统
微拉伸
Eugenol Dentin-bonding systems Microtensile bond strength
