Comparative Evaluation of Accuracy of Different Apex Locators: Propex IQ, Raypex 6, Root ZX, and Apex ID with CBCT and Periapical Radiograph-In Vitro Study.

Okba Mahmoud,Hussam Alddin Tawfik Kayali,Saaid Al Shehadat,Ahmad Hisham Dandashi,Mawada Hassan Awad Abdelmagied,Bakr Nssaief Jasim

doi:10.1155/2021/5563426

Okba Mahmoud, Hussam Alddin Tawfik Kayali + Show 4 more

Open Access

https://doi.org/10.1155/2021/5563426

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Abstract

Objectives This study aimed to validate the accuracy of working length (WL) measurements obtained with the newly introduced Propex IQ apex locator and to compare it with the latest generations of other electronic apex locators, CBCT, and conventional periapical radiographs by using the actual WL measurements obtained by using an endodontics microscope as a reference. Materials and Methods Thirty-five extracted single-rooted human mandibular first premolars with curvatures from 10° to 20° were selected according to the inclusion and exclusion criteria and cut at the cementoenamel junction to achieve a standard reference point for WL determination. The actual WL was obtained by inserting a size-15 k-file in the root canal until the tip of the file was visible under an endodontic microscope. The definitive WL was measured using Propex IQ (Dentsply Sirona), Raypex 6 (VDW Dental), Root ZX (Morita), and Apex ID (Kerr Dental). In addition, radiographic WL was obtained using periapical radiographs and CBCT. One-way ANOVA was used for comparisons of the WL values, with a p value < 0.05. The percentage of success of each method for determination of the definitive WL was assessed using cross-tabulation and chi-square tests. Results CBCT radiographs and Propex IQ apex locator yielded the most accurate WL measurements in comparison with the actual WL measurements (p < 0.05). Raypex 6, Root ZX, and Apex ID yielded more accurate WL measurements than conventional periapical radiographs (p < 0.05). Periapical radiographs yielded the least accurate WL measurements in comparison with the actual WL values (p < 0.05). Conclusions Within the limitations of this study, the Propex IQ apex locator showed higher accuracy than Raypex 6, Root ZX, and Apex ID for WL determination in the root canal. Nevertheless, CBCT radiographs yielded the maximum accuracy for WL measurements.

Highlights

Okba Mahmoud,1 Mawada Hassan Awad Abdelmagied,1 Ahmad Hisham Dandashi,1 Bakr Nssaief Jasim,1 Hussam Alddin Tawfik Kayali,1 and Saaid Al Shehadat2
Materials and Methods. irty-five extracted single-rooted human mandibular first premolars with curvatures from 10° to 20° were selected according to the inclusion and exclusion criteria and cut at the cementoenamel junction to achieve a standard reference point for working length (WL) determination. e actual WL was obtained by inserting a size-15 k-file in the root canal until the tip of the file was visible under an endodontic microscope. e definitive WL was measured using Propex IQ (Dentsply Sirona), Raypex 6 (VDW Dental), Root ZX (Morita), and Apex ID (Kerr Dental)
0.28 0.80 0.23 0.31 0.01 0.90 determining the WL, since it was recently introduced in the market. erefore, we examined the accuracy of these devices in curved single-rooted extracted mandibular first premolars [23]. e results of the current study demonstrated that WL measurements using Cone-beam computed tomography (CBCT) radiographs and the Propex IQ apex locator were the most accurate, while conventional radiographs yielded the least accurate WL measurements. e WL measurements obtained with Raypex 6, Root ZX, and

Summary

Research Article

Comparative Evaluation of Accuracy of Different Apex Locators: Propex IQ, Raypex 6, Root ZX, and Apex ID with CBCT and Periapical Radiograph 8212In Vitro Study. Is study aimed to validate the accuracy of working length (WL) measurements obtained with the newly introduced Propex IQ apex locator and to compare it with the latest generations of other electronic apex locators, CBCT, and conventional periapical radiographs by using the actual WL measurements obtained by using an endodontics microscope as a reference. CBCT radiographs and Propex IQ apex locator yielded the most accurate WL measurements in comparison with the actual WL measurements (p < 0.05). Raypex 6, Root ZX, and Apex ID yielded more accurate WL measurements than conventional periapical radiographs (p < 0.05). Incorrect WL determination of the root canal can result in residual bacterial infection, which can lead to an enormous defect in the root end area, causing loss of the apical seal, endodontic treatment failure, and major flare-up problems [4]

International Journal of Dentistry

Actual WL

WL determination method

Findings

Conclusions