Efficiency of an integrated apex locator in determining working length in various irrigating solutions: An in vivo study

Chukka, Rakesh Reddy; Bellam, Malati Devi; Marukala, Narender Reddy; Dinapadu, Sainath; Konda, Naresh Kumar; Nagilla, Jithender

doi:10.4103/jpbs.jpbs_122_20

Cited by 12 publications

(11 citation statements)

References 31 publications

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“…This study showed a higher but not statistically significant rate of acceptable results (100%, ±1 mm) in the saline and NaOCl groups, which is in agreement with previous studies 25,42 . In a recent study by Chukka RR 44 , NaOCl does not affect the WL determination of the EAL, similar with the present findings. HEBP's overestimated measurements in detecting AC can be explained by the fact that HEBP's ionization degree in liquids is lower than that of the other three solutions 45 .…”

Section: Discussionsupporting

confidence: 93%

Accuracy of working length measurement by Raypex 6: Electronic apex locator versus actual measurements under stereomicroscope

Peker¹,

Hepşenoğlu²,

Erşahan³

et al. 2022

Balkan J Dent Med

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Background/Aim: This study aimed to evaluate the precision of the Raypex 6 apex locator in locating the apical constriction (AC) and major foramen (MF) during a root canal treatment compared with a microscopic evaluation. Another aim of the present study was to evaluate the accuracy of the Raypex 6 in the presence of different irrigating solutions (NaOCl, saline, EDTA, etidronic acid-HEBP). Material and Methods: One hundred and nine patients were included in this study and were randomly assigned into four groups according to the irrigation solution used; NaOCl, EDTA, HEBF and saline. Electronic MF (EMF) and AC (EAC) were measured by using Raypex 6. The teeth were extracted. The apical 3 mm of each canal was trimmed to expose the file tip. The samples were observed under a stereomicroscope, and the actual length of MF (ALMF) and AC (ALAC) were measured. The data were analyzed by using x2 test, and significance was set at P< 0.05. Results: The Raypex 6 was accurate 71.4% of the time to ±0.5mm and 93.3% of the time to ±1mm in determining the ALAC. While similar ALAC-EAC differences were observed in EDTA, NaOCl, and saline groups (p= 0.230), the highest differences were seen in the HEBP group (p= 1.000). The precision of Raypex 6 in determining the working length measurement depends on the type of irrigation. All solutions allowed reliable detection of AC. However, HEBF significantly increased the risk of overpreparation. Conclusions: Raypex 6 can be recommended for clinical use and its accuracy is not affected by the type of irrigant when locating MF.

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Section: Discussionsupporting

confidence: 93%

Accuracy of working length measurement by Raypex 6: Electronic apex locator versus actual measurements under stereomicroscope

Peker¹,

Hepşenoğlu²,

Erşahan³

et al. 2022

Balkan J Dent Med

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“…Nevertheless, majority of measurements obtained by the three devices, with both irrigating solutions did not surpass the apical foramen. These results are similar to that found in other studies which showed that the using EALs to determine the major foramen, in 0.0 EAL's mark led to overestimation of the working length (Connert et al 2018;Chukka et al 2020).…”

Section: Discussionsupporting

confidence: 91%

“…Future studies should evaluate other endodontic conditions, as foramen diameter, perforations, root resorptions, file diameter and others that may affect the performance of EALs, because in vivo situations differ from those found in controlled in vitro and ex vivo studies (Duran-Sindreu et al 2012Chukka et al 2020.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the effect of irrigants on the accuracy and repeatability of three electronic apex locators: an ex vivo study

D’Assunção

Silva

Arnaud

et al. 2021

RSD

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Objective: To evaluate the effect of 2% chlorhexidine (CHX) and 2.5% sodium hypochlorite (NaOCl) on the accuracy and repeatability of three Electronic Apex Locators (EALs). Methodology: Thirty one human teeth were connected to a platform, irrigated with 2.0% CHX, and obtained two readings, again irrigated with 2.5% NaOCl and obtained two more readings. The distance between the tip of the file and the apical constriction was measured. Repeatability was calculated using the intraclass correlation coefficient (ICC) and repeatability coefficient (CR). Results: For CHX 2%, with the Mini Apex Locator, 25 of 31 electronic measurements were accurate (80.6%), 28 of 31 measurements for iPex (90.3%) and for Root ZX II 26 (83, 9%). For 2.5% NaOCl, with the Mini Apex Locator, 25 of the 31 measurements were accurate (80.6%), 28 of the 31 measurements for the iPex (90.3%) and for the Root ZX II, 24 (77, 4%). There were no differences between the two irrigants (p>0.05). The values (ICC) were 0.975 and 0.994 for the Mini Apex Locator, 0.981 and 0.971 for the i Pex and 0.994 and 0.995 for the Root ZX II. When using CHX, the (CR) was 0.196 for the Mini Apex Locator, 0.152 for the iPex and 0.088 for the Root ZX II. When using 2.5% NaOCl, the (CR) was 0.088 for the Mini Apex Locator, 0.196 for the iPex and 0.088 for the Root ZX II. Conclusions: The use of 2% CHX and 2.5% NaOCl did not affect the accuracy and repeatability of the three devices.

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“…During RCP, 2.5% NaOCl is one of the most frequently used root canal irrigation solutions. Several studies have reported that NaOCl did not affect the determination of working length using EALs [18,23]. Thus, we used 2.5% NaOCl as the root canal irrigant in the present study.…”

Section: Discussionmentioning

confidence: 99%

Effects of three different embedding media on the accuracy of different electronic apex locators: An in vitro study

2022

Ann Clin Anal Med

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Aim: In this study, we aimed to evaluate in vitro the measurement accuracy of three electronic apex locators (EALs) in three different embedding media. Material and Methods: Thirty maxillary central incisors were included (N = 30). The specimens were decoronated at cement-enamel junction, and the soft tissues in root canals were removed. The samples were randomly divided into three groups (n = 10). The specimens were embedded in alginate (group A), gelatin (group B) and agar agar (group C), leaving the coronal 2 mm of teeth exposed. Electronic lengths (ELs) of root canals of samples were measured using Raypex 6 (VDW, Munich, Germany), Apex ID (SybronEndo, Glendora, USA) and Ipex 2 (NSK Inc., Kanuma, Japan). In all groups, actual length (AL) values subtracted from EL values, and EL-AL values were recorded. Results: The EL-AL values for each embedding media were classified within an error range of ± 0.5 mm and ± 1 mm, and the chi-square (χ2) test was used to compare the percentage of acceptable measurements of three EALs (α = 0.05). The measurements of Raypex 6 in agar agar medium were statistically different compared with those in alginate and gelatin media, within the error margin of ± 0.5 mm (p < 0.05). Both in alginate and gelatin media, no statistically significant difference was observed in percentages of acceptable measurements with Raypex 6, Apex ID and Ipex 2 within two ranges of error (p > 0.05). Discussion: Within the limitations of this study, alginate and gelatin can be used safely as embedding media in studies investigating the in vitro measurement accuracy of EALs.

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Efficiency of an integrated apex locator in determining working length in various irrigating solutions: An in vivo study

Cited by 12 publications

References 31 publications

Accuracy of working length measurement by Raypex 6: Electronic apex locator versus actual measurements under stereomicroscope

Accuracy of working length measurement by Raypex 6: Electronic apex locator versus actual measurements under stereomicroscope

Evaluation of the effect of irrigants on the accuracy and repeatability of three electronic apex locators: an ex vivo study

Effects of three different embedding media on the accuracy of different electronic apex locators: An in vitro study

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