5种液体对ProPex根尖定位仪准确性影响的体外实验研究

›› 2015, Vol. 35 ›› Issue (8): 639-641.

5种液体对ProPex根尖定位仪准确性影响的体外实验研究

王晓彦,耿发云,李红文,傅云婷,杜瑞钿

广东省深圳市龙岗中心医院（耳鼻咽喉科分院）口腔科

收稿日期:2014-01-27 修回日期:2014-04-12 出版日期:2015-08-28 发布日期:2015-08-14
通讯作者: 王晓彦 E-mail:wangxiaoyan8094@163.com

n vitro study on effect of five different solutions on the accuracy of ProPex electronic apex locator

Received:2014-01-27 Revised:2014-04-12 Online:2015-08-28 Published:2015-08-14

摘要/Abstract

摘要： 目的研究5.25%次氯酸钠液、生理盐水、17% EDTA、3%过氧化氢液4种不同冲洗液以及血液对ProPex根尖定位仪测量准确性的影响。方法选择根尖孔发育完成的单根管离体牙45颗，记录理论实际值后在生理盐水琼脂凝胶上构建体外评价模型,根管内分别灌注5.25%次氯酸钠液、生理盐水、17% EDTA、3%过氧化氢液和血液，使用Propex记录测量值。结果各组根管内容物对Propex测量值的影响无统计学意义（F=1.959，P=0.090，P>0.05）。结论 ProPex测量牙齿操作长度的准确性不受根管内容物的影响。

关键词: 离体牙, 根尖定位仪, 根管, 液体

Abstract: Objective To study the effect of four different solutions:5.25% NaOCl,0.9% NaCl,17% EDTA,3% H2O2 and the blood on the accuracy of ProPex apex locator.Methods Fortyfive extracted teeth with single straight canals and completed foramina were selected to record the ideal actual measurements and then were taken on a normal saline agar model to mimic the situation in vivo.Fortyfive single canals teeth filled with 5.25% NaOCl,0.9% NaCl,17% EDTA,3% H2O2 and blood were used to record the experimental measurements with the ProPex apex locator.Results The accuracy of ProPex apex locator was not affected by different canal contents and the measurements of each group were not statistically different(F=1.959,P=0.090,P>0.05).Conclusions Canal length measuring accuracy of ProPex is not affected by the contents of the root canal.

Key words: extracted teeth, electronic apex locator, root canal, liquid

中图分类号:

R781.05

王晓彦耿发云李红文傅云婷杜瑞钿. 5种液体对ProPex根尖定位仪准确性影响的体外实验研究[J]. 口腔医学, 2015, 35(8): 639-641.

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