文章摘要
冯丽君,陈亚明.不同树脂粘结系统对纤维桩与根管粘结界面扫描电镜研究[J].南京医科大学学报,2013,(12):1800~1803
不同树脂粘结系统对纤维桩与根管粘结界面扫描电镜研究
SEM evaluation of bonding interface between different adhesive system and dentin after root canal repaired by fiber post
投稿时间:2013-05-27  
DOI:10.7655/NYDXBNS20131243
中文关键词: 纤维桩  扫描电镜  树脂突  混合层
英文关键词: fiber post  SEM  resin tag  hybrid layer
基金项目:江苏省高校新技术产业发展项目(JH03-026)
作者单位
冯丽君 南京医科大学口腔医学研究所,南京医科大学附属口腔医院综合科,江苏 南京 210029 
陈亚明 南京医科大学口腔医学研究所,南京医科大学附属口腔医院综合科,江苏 南京 210029 
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中文摘要:
      目的:观察3种不同树脂粘结系统处理后,玻璃纤维桩与根管不同深度粘结界面情况,从微观结构的不同探索最佳临床选择。方法:15颗完整离体单根牙于釉牙骨质界冠方2 mm处截冠。根管治疗后分3组修复:玻璃纤维桩 + 3M Unicem组?玻璃纤维桩 + 可乐丽DC Core组?玻璃纤维桩 + Luxacore组。包埋后切片对牙根上下两部分进行扫描电镜观察粘结界面形态。结果:3M Unicem自粘接树脂水门汀与根管牙本质仅形成混合层,牙根冠根段均未发现树脂突结构;DC Core一步法自酸蚀与根管冠方牙本质形成数目可观的树脂突,而随根管深度增加,树脂突数量减少;Luxacore全酸蚀组在整个根管段都可见大量明显的树脂突。结论:纤维桩的粘结状况与粘结材料?根管部位等因素相关。全酸蚀三步法在微观界面上可达到最佳粘结效果。
英文摘要:
      Objective:To explore the microstructure of the bonding interface between the fiber post and root canal wall,which was processed with different bonding material and methods. Methods:Fifteen sound canines were root filled after sectioned transversely 2mm coronal to the labial cemento-enamel junction. Fiber post was placed with three different root canal adhesive material(n = 5):RelyX Unicem(3M),DC core(Kuraray),Luxacore Z. Each root specimen was cross sectioned across into three samples (+/- 2.0 mm in thickness). In each group 3 samples were chosen to observe under Scanning Electron Microscopy(SEM). Results:SEM observation of the ashesive interface specimens showed that different bonding treatment caused to form varying degrees of hybrid layer and resin tags. Conclusion:SEM observation of the ashesive interface specimens reveals that the mixed layer and resin tags are the key factors in approaching better bond.
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