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| 两种根管预备方法对根尖挤出物的影响 | |
| 引用本文： | 葛久禹,邓润智,张军,付义富,孙学民,张玲. 两种根管预备方法对根尖挤出物的影响[J]. 现代口腔医学杂志, 2006, 20(5): 489-491 |
| 作者姓名： | 葛久禹 邓润智 张军 付义富 孙学民 张玲 |
| 作者单位： | 210008,南京大学医学院附属口腔医院 |
| 基金项目： | 江苏省南京市医学科技发展计划 |
| 摘 要： | 目的比较常规根管预备方法和冠-根向根管预备法在根管预备时，从根尖孔被挤压出的冲洗液量和碎屑量的重量差，以选择较好的根管预备法。方法选择直根管的22颗切牙，分别置入集液瓶盖中固定并封闭。用常规根管预备法和冠-根向预备法预备根管，同时用计10ml液体进行根管交替冲洗。收集预备前后的集液瓶重量，称出根尖挤出物。结果冠-根向根管预备组的根尖挤出量明显少于常规根管预备组，并有显著差异。结论冠-根向根管预备方法科学，可以减少根尖挤出物的量，能有效防止肿胀、疼痛并发症的发生。 |
| 关 键 词： | 根尖挤出物 常规根管预备 冠-根向根管 |
| 收稿时间： | 2005-06-08 |
| 修稿时间： | 2005-06-082005-10-10 |
A comparison study on periapical extrusion by conventional filing and crown-down techniques |
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| GE Jiuyu, DENG Runzhi, ZHANG Jun,et al.. A comparison study on periapical extrusion by conventional filing and crown-down techniques[J]. Journal of Modern Stomatology, 2006, 20(5): 489-491 | |
| Authors: | GE Jiuyu DENG Runzhi ZHANG Jun et al. |
| Affiliation: | The Affiliated Stomatological Hospital, Medical College of Nanjing University, Nan |
| Abstract: | Objective To make a comparison of periapical extrusion from the apical foramen by conventional hand filing and crown- down techniques. Methods Twenty - two human incisors were respectively fixed in glass vial, Root canals were instrumented to the apical constriction with two techniques, Apically extruded debris and irrigation were measured. Results There was significant difference in the amounts of extrusion between two techniques, Conclusion Crown- down technique extruded the less amount of debris and irrigation, whereas conventional hand filing was shown to force out more extrusion. |
| Keywords: | Extrusion Crown- down technique Conventional hand filing |
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