口腔医学研究

口腔医学研究 ›› 2018, Vol. 34 ›› Issue (9): 979-982.DOI: 10.13701/j.cnki.kqyxyj.2018.09.014

• 口腔修复学研究 • 上一篇    下一篇

简化乙醇湿粘结技术和不同的桩道冲洗对纤维桩粘结性能的影响

狄贵景,莫宏兵*   

  1. 佳木斯大学附属第二医院口腔医院修复一科 黑龙江 佳木斯 154002
  • 收稿日期:2017-11-29 出版日期:2018-09-28 发布日期:2018-09-25
  • 通讯作者: 莫宏兵,E-mail:mhbys@163.com
  • 作者简介:狄贵景(1989~ ),女,山东济宁人,硕士在读,主要从事口腔修复学的临床及基础研究工作。

Effect of Simplified Ethanol Wet Bonding and Different Strategies of Root Canal Irrigation on Bonding Strength of Fiber Post.

DI Gui-jing, MO Hong-bing*.   

  1. Department of Prosthodontics, The Second Affiliated Hospital of Jiamusi University, Jiamusi 154002, China.
  • Received:2017-11-29 Online:2018-09-28 Published:2018-09-25

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摘要： 目的: 研究简化乙醇湿粘接技术结合桩道内不同溶剂处理对纤维桩粘接性能的影响,为纤维桩粘结的应用提供参考。方法: 选取52颗单根管离体牙,釉牙骨质界(cemento-enamel junction,CEJ)冠方2 mm处截去牙冠后模拟常规的根管治疗和桩道预备。完成后根据桩道冲洗剂的不同随机分成4组:A:蒸馏水组(对照组);B:5%次氯酸钠溶液组;C:17%乙二胺四乙酸(ethylene diamine tetraacetic acid,EDTA)溶液组;D:5%次氯酸钠溶液+17%EDTA溶液组。根据水湿粘结和简化乙醇湿粘结的不同,每组随机分2个亚组。将离体牙切片后进行推出实验和扫描电镜(scanning electron microscope,SEM)观察,并对断裂状态计数分析。结果: 与A组比较,B、C、D组可以不同程度地去除玷污层。粘结强度测试结果:C组>B组>D组>A组,简化乙醇组>水湿润组,差异均有统计学意义(P＜0.05)。结论: 应用5%次氯酸钠溶液和17%EDTA溶液组合对去除桩道内玷污层效果显著;简化乙醇湿粘接技术对本实验中纤维桩粘结的微推出强度有所改善。

关键词: 纤维桩, 桩道玷污层, 简化乙醇湿粘接技术, 粘结强度

Abstract: Objective: To evaluate the effect of simplified ethanol wet bonding and different treatments on the surface of post space wall, so as to provide reference for the application of fiber post bonding. Methods: Fifty-two single root canal teeth were collected. The crowns of teeth were sectioned 2 mm above the cementoenamel junction. After the root canal treatment, post space was prepared. The specimens were randomly divided into 4 groups according to different solvent treatment. Group A: distilled water irrigation (control group); group B: irrigation with 5.25% sodium hypochlorite (NaClO) solution; group C: irrigation with 17% EDTA solution; group D: irrigation with 5% NaClO followed by 17% EDTA solution. Each group was randomly assigned into two subgroups according to different substrate conditions (water-wet or simplified ethanol-wet). Each specimen was sectioned into thick slises. The push-out test was performed. The dentin surface and bonding interface were examined under SEM. The fracture mode were analyzed. Results: Compared with control group, the smear layer was removed to varying degrees in the other three groups. The result of bond strength was: C>B>D>A and ethanol-wet>water-wet (P<0.05). Conclusion: Irrigation with 5% NaClO followed by 17%EDTA solution can eliminate the smear layer effectively. The application of simplified ethanol wet bonding technology can get higher bonding strength of fiber post in this experiment.

Key words: Fiber post Smear, layer Simplified ethanol-wet bonding , Bond strength