不同冲洗液对根尖溢出碎屑的影响

上海口腔医学 ›› 2014, Vol. 23 ›› Issue (6): 695-698.

不同冲洗液对根尖溢出碎屑的影响

张凌, 朱琳琳, 张梦龙

中国医科大学口腔医学院牙体牙髓病科,辽宁沈阳 110002

收稿日期:2014-03-24 修回日期:2014-05-19 出版日期:2014-12-20 发布日期:2015-01-08
通讯作者: 张凌,Tel：024-22895932,E-mail:zhanglingbab@sohu.com
作者简介:张凌（1970-）,女,博士,副教授

The effect of various irrigants on apically extruded debris: an in vitro study

ZHANG Ling, ZHU Lin-lin, ZHANG Meng-long

Departments of Endodontics, School of Stomatology, China Medical University. Shenyang 110002, Liaoning Province, China

Received:2014-03-24 Revised:2014-05-19 Online:2014-12-20 Published:2015-01-08

摘要/Abstract

摘要： 目的：比较根管预备后不同冲洗液对根尖溢出碎屑的影响。方法：58颗正畸拔除的单根牙随机分为4组,常规根管预备后,采用不同冲洗液冲洗,对照组(A组)：7颗、蒸馏水冲洗;实验组每组17颗,B组：1% NaOCl冲洗;C组：2.5% NaOCl冲洗;D组：17% EDTA冲洗。收集冲洗后的冲洗液,通过紫外可见分光光度计检测吸光度（OD）值,比较其根尖溢出碎屑的含量。采用SPSS 13.0软件包对结果进行统计学分析。结果：冲洗前、后的OD差值分别为对照组A组0.012、B组0.122、C组0.393、D组0.021,B、C、D 3组冲洗前、后的差值与对照组相比,均有显著差异（P<0.05）。其中,C组最高,与B、D 2组相比,均差异显著（P<0.05）。结论：冲洗液能增加根尖溢出碎屑的含量,2.5%NaClO冲洗液产生较多的根尖溢出碎屑,1% NaOCl、17%EDTA溶液是临床上较理想的冲洗液。

关键词: 根尖溢出碎屑, 冲洗液, 次氯酸钠：EDTA

Abstract: PURPOSE: To compare the amount of debris extruded apically from root canals when different irrigants were used. METHODS: Fifty-eight extracted single-rooted human mandibular premolars with straight root canals were used. The teeth were randomly divided into control group (group A, n=7) and 3 experimental groups (group B,C,D,n=17). All teeth were prepared for root canal therapy, and 3 different irrigants were used (group B: 1% sodium hypochlorite; group C: 2.5% sodium hypochlorite; group D: 17% EDTA). Debris extruded from the apical foramen during root canal irrigation was collected into tubes and the amount of debris extruded was counted and analyzed. Statistical significance was assessed by Student-Newman-Keuls test with SPSS 13.0 software package. RESULTS: Group B, C, D had more amount of extruded debris, which was significantly different from the control group (P<0.05). Group C had the highest amount of extruded debris,which was significantly different from the other group (P<0.05). CONCLUSIONS: The type of irrigants used can affect the amount of apically extruded debris. 2.5% sodium hypochlorite can produce more apically extruded debris. 1% sodium hypochlorite and 17% EDTA are better than 2.5% sodium hypochlorite in terms of irrigation efficacy.

Key words: Apical extrusion debris, Irrigation, Sodium hypochlorite, EDTA

中图分类号:

R781.3

张凌, 朱琳琳, 张梦龙. 不同冲洗液对根尖溢出碎屑的影响[J]. 上海口腔医学, 2014, 23(6): 695-698.

ZHANG Ling, ZHU Lin-lin, ZHANG Meng-long. The effect of various irrigants on apically extruded debris: an in vitro study[J]. Shanghai Journal of Stomatology, 2014, 23(6): 695-698.

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