0.12%氯己定和锌纳米颗粒对使用第五代粘结剂的牙本质微剪切粘结强度的影响。
Effect of 0.12% chlorhexidine and zinc nanoparticles on the microshear bond strength of dentin with a fifth-generation adhesive.
作者信息
Alaghehmad Homayoon, Mansouri Elham, Esmaili Behnaz, Bijani Ali, Nejadkarimi Sogol, Rahchamani Mohsen
机构信息
Dental Materials Research Center, Department of Esthetic and Restorative Dentistry, Dental Materials Research Center, Babol University of Medical Sciences, Babol, Iran.
Department of Esthetic and Restorative Dentistry, Babol University of Medical Sciences, Babol, Iran.
出版信息
Eur J Dent. 2018 Jan-Mar;12(1):105-110. doi: 10.4103/ejd.ejd_172_16.
OBJECTIVE
In this study, we compared the effects of 0.12% chlorhexidine (CHX) and nano zinc oxide (NZO) on the microshear bond strength of dentin with a fifth-generation adhesive after acid etching.
MATERIALS AND METHODS
Forty molar teeth were randomly divided into four main groups based on dentin surface treatment technique (a) control (single bond 2); (b) NZO; (c) CHX; and (d) NZO + CHX. In each group, half of the samples underwent thermocycling, with no thermocycling in the other half. Then, failure mode was evaluated under a stereomicroscope. Statistical analysis was performed using -test, two-way ANOVA, and Chi-squared test.
RESULTS
The mean microshear bond strength of the groups without thermocycling was more than that of the groups with thermocycling, but there were no statistically significant differences between the groups with and without thermocycling in pair-wise comparisons.
CONCLUSION
Pretreatment with NZO and CHX separately and simultaneously had no effect on the microshear bond strength of a fifth-generation adhesive.
目的
在本研究中，我们比较了0.12%洗必泰（CHX）和纳米氧化锌（NZO）对经酸蚀处理的牙本质与第五代粘结剂之间微拉伸粘结强度的影响。
材料与方法
根据牙本质表面处理技术，将40颗磨牙随机分为四个主要组：（a）对照组（单键2）；（b）NZO组；（c）CHX组；（d）NZO + CHX组。每组中，一半样本进行热循环，另一半不进行热循环。然后，在体视显微镜下评估失败模式。使用t检验、双向方差分析和卡方检验进行统计分析。
结果
未进行热循环组的平均微拉伸粘结强度高于进行热循环组，但在两两比较中，进行热循环组和未进行热循环组之间无统计学显著差异。
结论
单独及同时使用NZO和CHX预处理对第五代粘结剂的微拉伸粘结强度无影响。
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