Comparative evaluation of accuracy of 2 electronic apex locators with conventional radiography: An ex vivo study

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Introduction The aim of this ex vivo study was to evaluate the accuracy of the Raypex 5 (VDW, Munich, Germany) and Apex NRG XFR (Medic NRG Ltd, Tel Aviv, Israel) electronic apex locators (EALs) in determining the working length when compared with radiographs. Methods Twenty-five human single-rooted teeth were selected, and the access cavity was prepared. The working length (WL) was determined radiographically and electronically by using 2 EALs. The files were fixed at the WL, and the teeth were extracted. The apical 4 mm of each canal was trimmed to expose the file tip, and the samples were observed under a stereomicroscope. The distance from the file tip to the point 0.5 mm coronal to the anatomic apex was measured. The data were analyzed by using 1-way analysis of variance and the Tukey Honestly Significant Difference test. Results There was no significant difference between the Raypex 5 and the Apex NRG XFR devices with respect to their accuracy in determining the final WL. When compared with radiography, both the EALs had no significant difference. When comparing EALs and radiographic measurements with control measurements, accuracy results were found to be 20%, 36%, and 52% for the Raypex 5, Apex NRG XFR, and radiography, respectively. Overestimations of WL determination by the Raypex 5, Apex NRG XFR, and radiography were 4%, 0%, and 40%, respectively. Underestimations of WL determination by the Raypex 5, Apex NRG XFR, and radiography were 76%, 64%, and 8%, respectively. Conclusions Both the EALs had the same accuracy in determining the WL when compared with radiography.

Original languageEnglish
Pages (from-to)201-204
Number of pages4
JournalJournal of Endodontics
Volume41
Issue number2
DOIs
Publication statusPublished - 01-01-2015

Fingerprint

Radiography
Tooth
Israel
Germany
Analysis of Variance
Equipment and Supplies

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

@article{2f6cb2a274834201bc603071d53b2731,
title = "Comparative evaluation of accuracy of 2 electronic apex locators with conventional radiography: An ex vivo study",
abstract = "Introduction The aim of this ex vivo study was to evaluate the accuracy of the Raypex 5 (VDW, Munich, Germany) and Apex NRG XFR (Medic NRG Ltd, Tel Aviv, Israel) electronic apex locators (EALs) in determining the working length when compared with radiographs. Methods Twenty-five human single-rooted teeth were selected, and the access cavity was prepared. The working length (WL) was determined radiographically and electronically by using 2 EALs. The files were fixed at the WL, and the teeth were extracted. The apical 4 mm of each canal was trimmed to expose the file tip, and the samples were observed under a stereomicroscope. The distance from the file tip to the point 0.5 mm coronal to the anatomic apex was measured. The data were analyzed by using 1-way analysis of variance and the Tukey Honestly Significant Difference test. Results There was no significant difference between the Raypex 5 and the Apex NRG XFR devices with respect to their accuracy in determining the final WL. When compared with radiography, both the EALs had no significant difference. When comparing EALs and radiographic measurements with control measurements, accuracy results were found to be 20{\%}, 36{\%}, and 52{\%} for the Raypex 5, Apex NRG XFR, and radiography, respectively. Overestimations of WL determination by the Raypex 5, Apex NRG XFR, and radiography were 4{\%}, 0{\%}, and 40{\%}, respectively. Underestimations of WL determination by the Raypex 5, Apex NRG XFR, and radiography were 76{\%}, 64{\%}, and 8{\%}, respectively. Conclusions Both the EALs had the same accuracy in determining the WL when compared with radiography.",
author = "Deepika Khandewal and Ballal, {Nidambur Vasudev} and Saraswathi, {Muliya Vidya}",
year = "2015",
month = "1",
day = "1",
doi = "10.1016/j.joen.2014.10.011",
language = "English",
volume = "41",
pages = "201--204",
journal = "Journal of Endodontics",
issn = "0099-2399",
publisher = "Elsevier Inc.",
number = "2",

}

TY - JOUR

T1 - Comparative evaluation of accuracy of 2 electronic apex locators with conventional radiography

T2 - An ex vivo study

AU - Khandewal, Deepika

AU - Ballal, Nidambur Vasudev

AU - Saraswathi, Muliya Vidya

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Introduction The aim of this ex vivo study was to evaluate the accuracy of the Raypex 5 (VDW, Munich, Germany) and Apex NRG XFR (Medic NRG Ltd, Tel Aviv, Israel) electronic apex locators (EALs) in determining the working length when compared with radiographs. Methods Twenty-five human single-rooted teeth were selected, and the access cavity was prepared. The working length (WL) was determined radiographically and electronically by using 2 EALs. The files were fixed at the WL, and the teeth were extracted. The apical 4 mm of each canal was trimmed to expose the file tip, and the samples were observed under a stereomicroscope. The distance from the file tip to the point 0.5 mm coronal to the anatomic apex was measured. The data were analyzed by using 1-way analysis of variance and the Tukey Honestly Significant Difference test. Results There was no significant difference between the Raypex 5 and the Apex NRG XFR devices with respect to their accuracy in determining the final WL. When compared with radiography, both the EALs had no significant difference. When comparing EALs and radiographic measurements with control measurements, accuracy results were found to be 20%, 36%, and 52% for the Raypex 5, Apex NRG XFR, and radiography, respectively. Overestimations of WL determination by the Raypex 5, Apex NRG XFR, and radiography were 4%, 0%, and 40%, respectively. Underestimations of WL determination by the Raypex 5, Apex NRG XFR, and radiography were 76%, 64%, and 8%, respectively. Conclusions Both the EALs had the same accuracy in determining the WL when compared with radiography.

AB - Introduction The aim of this ex vivo study was to evaluate the accuracy of the Raypex 5 (VDW, Munich, Germany) and Apex NRG XFR (Medic NRG Ltd, Tel Aviv, Israel) electronic apex locators (EALs) in determining the working length when compared with radiographs. Methods Twenty-five human single-rooted teeth were selected, and the access cavity was prepared. The working length (WL) was determined radiographically and electronically by using 2 EALs. The files were fixed at the WL, and the teeth were extracted. The apical 4 mm of each canal was trimmed to expose the file tip, and the samples were observed under a stereomicroscope. The distance from the file tip to the point 0.5 mm coronal to the anatomic apex was measured. The data were analyzed by using 1-way analysis of variance and the Tukey Honestly Significant Difference test. Results There was no significant difference between the Raypex 5 and the Apex NRG XFR devices with respect to their accuracy in determining the final WL. When compared with radiography, both the EALs had no significant difference. When comparing EALs and radiographic measurements with control measurements, accuracy results were found to be 20%, 36%, and 52% for the Raypex 5, Apex NRG XFR, and radiography, respectively. Overestimations of WL determination by the Raypex 5, Apex NRG XFR, and radiography were 4%, 0%, and 40%, respectively. Underestimations of WL determination by the Raypex 5, Apex NRG XFR, and radiography were 76%, 64%, and 8%, respectively. Conclusions Both the EALs had the same accuracy in determining the WL when compared with radiography.

UR - http://www.scopus.com/inward/record.url?scp=84921510587&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921510587&partnerID=8YFLogxK

U2 - 10.1016/j.joen.2014.10.011

DO - 10.1016/j.joen.2014.10.011

M3 - Article

C2 - 25476973

AN - SCOPUS:84921510587

VL - 41

SP - 201

EP - 204

JO - Journal of Endodontics

JF - Journal of Endodontics

SN - 0099-2399

IS - 2

ER -