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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
引用本文: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.
作者姓名:冯丽君  陈亚明
作者单位: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;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
基金项目:江苏省高校新技术产业发展项目(JH03-026)
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?

关 键 词:纤维桩  扫描电镜  树脂突  混合层
收稿时间:2013/5/27 0:00:00

SEM evaluation of bonding interface between different adhesive system and dentin after root canal repaired by fiber post
Feng Lijun and Chen Yaming.SEM evaluation of bonding interface between different adhesive system and dentin after root canal repaired by fiber post[J].Acta Universitatis Medicinalis Nanjing,2013(12):1800-1803.
Authors:Feng Lijun and Chen Yaming
Affiliation:Institute of Stomatology,Department of Polydinecs,Affiliated Stomatology of NJMU,Nanjing 210029,China;Institute of Stomatology,Department of Polydinecs,Affiliated Stomatology of NJMU,Nanjing 210029,China
Abstract: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.
Keywords:fiber post  SEM  resin tag  hybrid layer
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