Evaluation of the accuracy of electronic apex locators, cone-beam computed tomography, and radiovisiography in primary teeth: An in vitro study.,Microscopy Research and Technique

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Evaluation of the accuracy of electronic apex locators, cone-beam computed tomography, and radiovisiography in primary teeth: An in vitro study.
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2020-06-26 , DOI: 10.1002/jemt.23524
Mevlut Kayabasi ₁ , Fatih Oznurhan ₁

Affiliation

Electronic apex locators (EALs), cone‐beam computed tomography (CBCT), and radiovisiography (RVG) claim to determine of working length (WL) in primary molar teeth. To evaluate the accuracy of WL determination by using three EALs, RVG, and CBCT imaging in extracted human primary molar teeth with/without root resorption. Twenty extracted primary molar teeth with resorption and 20 extracted primary molar teeth without resorption were used. After measuring actual lengths (AL) (Group 1), the electronic WL measurements were performed by using three different EALs [COXO C Smart‐1 Pro (Group 2), iPex (Group 3), and Apex ID (Group 4)]. Two different image sets were obtained as follows: CBCT imaging (Group 5) and RVG (Group 6). AL measurements performed with an endodontic measuring ruler and compared with the EAL, CBCT, and RVG image measurements. For all groups, there were no significant differences between the teeth with resorption and without. There were no significant differences in measuring methods from AL and between the methods used (p > .05). When electronic and radiographic method were compared in different frequency ranges, there was no statistically significant difference (p > .05). This study showed that EALs, CBCT, and RVG have high accuracy in primary molar teeth both with resorption and without root resorption and can be used for determining WL.

中文翻译：

评估电子根尖定位器、锥形束计算机断层扫描和乳牙放射成像的准确性：一项体外研究。

电子根尖定位器 (EAL)、锥形束计算机断层扫描 (CBCT) 和放射影像学 (RVG) 声称可以确定乳磨牙的工作长度 (WL)。通过使用三种 EAL、RVG 和 CBCT 成像来评估 WL 确定的准确性，用于提取有/无牙根吸收的人类乳磨牙。使用了 20 颗有吸收的乳磨牙和 20 颗没有吸收的乳磨牙。在测量实际长度 (AL)（第 1 组）后，使用三种不同的 EAL [COXO C Smart-1 Pro（第 2 组）、iPex（第 3 组）和 Apex ID（第 4 组）] 进行电子 WL 测量。如下获得两个不同的图像集：CBCT 成像（第 5 组）和 RVG（第 6 组）。使用牙髓测量尺进行 AL 测量，并与 EAL、CBCT 和 RVG 图像测量值进行比较。对于所有组，有吸收和无吸收的牙齿之间没有显着差异。AL 的测量方法和使用的方法之间没有显着差异（p > .05）。当电子和射线照相方法在不同频率范围内进行比较时，没有统计学上的显着差异（p > .05）。本研究表明，EAL、CBCT 和 RVG 在有吸收和无牙根吸收的乳磨牙中均具有较高的准确性，可用于确定 WL。

更新日期：2020-06-26

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