Comparative evaluation of working length determination by using conventional radiography, digital radiography and electronic apex locator

R. Mittal, Meenu Singla, A. Sood, Anchal Singla
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引用次数: 6

Abstract

Objective: The aim of this study was to compare the diagnostic efficacy of an electronic apex locator (EAL), conventional radiography, and digital radiography in working length (WL) determination. Materials and Methods: This study was performed on 25 vital premolar teeth, scheduled for extraction in orthodontic patients. After administration of local anesthesia, the teeth were isolated and the pulp cavities were accessed. The WL for each tooth was measured by an EAL (Justy II; Yoshida Dentcraft, Tokyo, Japan), conventional and digital radiographies. Immediately after WL determination, the teeth were extracted and actual WL was measured with a file under magnifying loupes (X3). Ability to measure WL was detected precisely and in acceptable range that is ± 0.5 mm of actual WL. Results: The mean value of differences between three experimental methods length and the actual WL were statistically significant (P < 0.05). EAL gave the most accurate readings out of all the experimental groups, with 100% accuracy within the acceptable range where as digital radiography gave the least accurate reading. Conclusion: The electronic method (Justy II apex locator) demonstrated significant accuracy in determining the working length.
传统x线照相、数字x线照相和电子顶点定位仪测定工作长度的比较评价
目的:本研究的目的是比较电子心尖定位仪(EAL)、常规x线摄影和数字x线摄影在确定工作长度(WL)方面的诊断效果。材料和方法:本研究对25颗正畸患者计划拔牙的重要前磨牙进行了研究。局部麻醉后,拔牙并进入牙髓腔。每颗牙齿的WL用EAL测量(just II;吉田Dentcraft,东京,日本),传统和数字射线摄影。WL测定后立即拔牙,在放大镜(X3)下用锉刀测量实际WL。能够精确测量WL,并在实际WL±0.5 mm的可接受范围内进行检测。结果:三种实验方法长度与实际WL的平均值差异均有统计学意义(P < 0.05)。EAL给出了所有实验组中最准确的读数,100%的准确度在可接受范围内,而数字放射照相给出的读数最不准确。结论:电子法(Justy II型顶点定位器)测定工作长度具有较好的准确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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