氯己定预处理牙本质后对自酸蚀粘接剂粘结效果的影响  

Effect of chlorhexidine on the bonding effect of self-acid adhesive to pre-treatment dentin

作　　者：荆得宝[1] 王丽琴 胡玉凤 朱静 JING De-bao;WANG Li-qin;HU Yu-feng;ZHU Jing(Department of Stomatology,Gongli Hospital,Shanghai Pudong New Area.Shanghai 200135;Department of Oral Medicine,Shanghai Stomatological Disease Center,Shanghai 200031,China)

机构地区：[1]上海市浦东新区公利医院口腔科,上海200135 [2]上海市口腔病防治院分院口腔内科,上海200031

出　　处：《上海口腔医学》2020年第2期150-154,共5页Shanghai Journal of Stomatology

基　　金：上海市卫生和计划生育委员会科研项目(201640289)。

摘　　要：目的:评价2%氯己定在不同作用时间下对自酸蚀粘接剂稳定性的影响。方法:选择50颗无龋离体牙作为研究对象,制作牙本质试件,采用Adper^TM Easy One自酸蚀粘接剂粘结,堆积复合树脂,制作粘结试件。试件分别用2%氯己定进行0、15、30、45、60 s预处理,分别在老化循环前后进行微拉伸强度和扫描电镜测试,检测氯己定对自酸蚀粘结的影响。采用SPSS 19.0软件包对数据进行统计学分析。结果:氯己定预处理45、60 s组即刻测试微拉伸强度显著高于对照组,老化循环后氯己定预处理60 s组微拉伸强度较对照组高,差异显著(P<0.05)。结论:2%氯己定能提高自酸蚀粘接剂的粘结强度,改善粘结界面的老化退变,提高粘结的持久性。PURPOSE: To evaluate the effect of 2% chlorhexidine(CHX) on the self-etching adhesive to dentin.METHODS: Fifty carious free molars were selected to expose the flat dentin surface. The specimens were bonded with c omposite resin by self-etching adhesive,which were pretreated by 2% CHX for 0, 15, 30, 45 and 60 s. The microtensile bond strength(μTBS) and scanning electron microscope(SEM) were evaluated before and after thermocycling. SPSS 19.0 software package was used for statistical analysis. RESULTS: μTBS of the 45 and 60 s-CHX pretreated group had significant difference before thermocycling, significantly higher than the control group(P<0.05). The 60 s-CHX pretreated group showed significant greater μTBS than the control group after thermocycling(P<0.05). CONCLUSIONS: 2%CHX pretreatment can improve the bonding strength of the self-etching adhesive, and slow down the aging progress of bonding interface.

关 键 词：氯己定 自酸蚀粘结 微拉伸强度 

分 类 号：R781.3[医药卫生—口腔医学]