| 粘固剂种类及牙体预备时机对纤维桩冠方微渗漏的影响 |
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| 引用本文： | 雷慧云,陈蕾,徐国富,梁霄鹏,李继佳. 粘固剂种类及牙体预备时机对纤维桩冠方微渗漏的影响[J]. 中国组织工程研究与临床康复, 2010, 14(3). DOI: 10.3969/j.issn.1673-8225.2010.03.019 |
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| 作者姓名： | 雷慧云 陈蕾 徐国富 梁霄鹏 李继佳 |
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| 作者单位： | 1. 中南大学附属湘雅医院口腔科,湖南省长沙市,410008
2. 中南大学材料科学与工程学院,湖南省长沙市,410008 |
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| 基金项目： | 湖南省自然科学基金资助项目;项目批准号09JJ3029;学科代码:C170803;课题名称:薄弱根重管重塑后桩核冠修复的生物学研究及临床应用 |
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| 摘 要： | 背景:牙体预备过程中高速涡轮机振动可破坏粘固剂与牙根、粘固剂与桩界面内的连续作用力,影响桩核的冠方封闭效果.目的:观察不同种类的粘固剂在不同时机行牙体预备对纤维桩冠方微渗漏的影响.方法:下颌单根管前磨牙随机分成3个实验组,在桩道预备后分别用Rely × luting、Panavia F、Paracore 5 mL粘接纤维桩.3个实验组内随机分成A,B,C 3个亚组,分别在粘固剂调和15,45,90 min后进行牙体预备后,经染色及透明化处理.在体式显微镜下记录各亚组微渗漏得分.结果与结论:同一牙体预备时机下,Rely × luting对纤维桩造成的冠方微渗漏影响最明显,Panavia F其次,Paracore 5 mL则最少;同一种粘固剂完全固化后,不同牙体预备时机对纤维桩冠方微渗漏无影响.
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| 关 键 词： | 粘固剂 纤维桩 牙体预备 微渗漏 |
Effect of different types of cements and the timing of tooth preparation on the coronal microleakage of fiber post |
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| Lei Hui-yun,Chen Lei,Xu Guo-fu,Liang Xiao-peng,Li Ji-jia. Effect of different types of cements and the timing of tooth preparation on the coronal microleakage of fiber post[J]. Journal of Clinical Rehabilitative Tissue Engineering Research, 2010, 14(3). DOI: 10.3969/j.issn.1673-8225.2010.03.019 |
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| Authors: | Lei Hui-yun Chen Lei Xu Guo-fu Liang Xiao-peng Li Ji-jia |
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| Affiliation: | Lei Hui-yun1,Chen Lei 1,Xu Guo-fu 2,Liang Xiao-peng 2,Li Ji-jia 1 1Department of Stomatology,Xiangya Hospital,Central South University,Changsha 410008,Hunan Province,China,2School of Materials Science , Engineering |
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| Abstract: | BACKGROUND:The vibration of high speed handpiece during tooth preparation may have adverse effect on the continuous force of the bonding interfaces among the cement,dentin,and post core.OBJECTIVE:To find the effect of different types of cements on the coronal microleakage of fiber post under different tooth preparation timings,and to provide evidence for the clinical operation.METHODS:The extracted mandibular premolars were divided into 3 groups,and they were cemented by Rely X luting,Panavia F and Paracore... |
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