Scanning electron microscopic examination of root canal filling materials.
Scanning electron microscopic examination of root canal filling materials.
复制标题
根管充填材料的扫描电子显微镜检查。
DOI：
10.1016/s0099-2399(76)80147-1
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发表时间：
1976
影响因子：
4.2
通讯作者：
S. Seltzer
中科院分区：
文献类型：
--
作者：
R. Wollard;S. Brough;J. Maggio;S. Seltzer
对130颗新鲜拔除的前牙进行根管预备，分别用不同的根管充填技术进行根管充填。扫描电子显微镜观察充填材料与根管壁的粘附性和适合性。总体而言，氧化锌-丁香酚粘固剂具有良好的粘附性，而聚羧酸锌粘固剂具有更大的变异性。银胶和杜仲胶没有粘附性，需要密封剂来填充牙锥和牙本质之间的界面。在根管内插入牙胶的技术中，没有一种技术能有效地消除根管间隙。
The root canals of 130 freshly extracted, anterior teeth were prepared and filled with various root canal fillings by various techniques. The adhesion and adaptation of the filling materials to the walls of the root canals were then examined with the scanning electron microscope. In general, zinc oxide-eugenol cements adhered well, whereas greater variability occurred with zinc polycarboxylate cements. Silver and gutta-percha cones had no adhesion and required a sealer to fill the interface between cones and dentin. None of the techniques for inserting gutta-percha into the root canal was effective in obliterating the root canal space.