In Vivo Evaluation of 3 Electronic Apex Locators: Root ZX Mini, Apex ID, and Propex Pixi

Serna-Peña, Gabriela; Gomes-Azevedo, Susana; Flores-Treviño, Jorge Jaime; Madla-Cruz, Elizabeth; Rodriguez-Delgado, Idalia; Martínez-González, Gustavo Israel

doi:10.1016/j.joen.2019.10.035

Cited by 32 publications

(34 citation statements)

References 31 publications

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“…Puri et al 28 compared the working length determined by Dentaport ZX and iPex II electronic apex locators with the real root canal length and reported the accuracy at 93.3% for Dentaport ZX and 90% for iPex II at ±0.5-mm margin range. In their in vivo study on Propex Pixi and Root ZX devices, Serna-Pena et al 29 reported the accuracy at 83.3% for Propex Pixi and 83.3% for Root ZX at ±0.5-mm margin range and 89.9% for Propex Pixi and 100% for Root ZX at ±1-mm margin range. In the present study, the accuracy values were found to be 90% for Dentaport ZX, 86.6% for Propex Pixi, and 86.6% for iPex II at ±0.5-mm margin range and 96.7% for Dentaport ZX, 93.3% for Propex Pixi, and 93.2% for iPex II at ±1-mm margin range.…”

Section: Discussionmentioning

confidence: 98%

Evaluation of the accuracy of different apex locators in determiningthe working length during root canal retreatment

Tüfenkçi

Kalayci

2020

J Dent Res Dent Clin Dent Prospects

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Background. This study aimed to assess the accuracy of three electronic apex locators (EALs) (DentaportZX [J Morita, Tokyo, Japan], Propex Pixi [Dentsply Maillefer, Ballaigues, Switzerland], and iPex II [NSK,Tokyo, Japan]) during root canal retreatment. Methods. The root canal lengths of 90 extracted single-rooted human teeth were determined under adental operating microscope at ×10 magnification. The actual working length (AWL) was 0.5 mm lessthan the root length. Electronic measurements were performed with the three EALs. The root canalswere instrumented and filled to the actual working length using the lateral compaction technique. Afterseven days, the teeth were retreated until the retreatment file was applied to the root canal at the workinglength determined by EALs, and then, the three EALs were used for determining the retreatmentworking length. Data were analyzed using chi-squared and Kruskal–Wallis tests. Results. In the retreatment, the accuracy of EALs was reported at %83.3 for Dentaport ZX, %83.4 forPropex Pixi, and %80 for iPex II within a tolerance of 0.5± mm of the AWL. Conclusion. Under the limitations of this study, Dentaport ZX, Propex Pixi, and iPex II can be a usefuladjunct during retreatment. Clinicians should be aware that residual materials in the root canal duringretreatment can affect the accuracy of EALs.

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Section: Discussionmentioning

confidence: 98%

Evaluation of the accuracy of different apex locators in determiningthe working length during root canal retreatment

Tüfenkçi

Kalayci

2020

J Dent Res Dent Clin Dent Prospects

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“…When the current passes through the periodontal ligament to the oral mucous membrane via a lip clip and attached file, the electric circuit is closed [ 7 ]. However, the presence of electrolytes negatively influences first- and second-generation EALs to accurately detect the apical foramen [ 6 , 8 ]. Root ZX, a third-generation apex locator, has the ability to measure the quotient between the impedance of 2 frequencies (0.4 and 8 kHz) and is considered as the gold standard EAL [ 6 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, the presence of electrolytes negatively influences first- and second-generation EALs to accurately detect the apical foramen [ 6 , 8 ]. Root ZX, a third-generation apex locator, has the ability to measure the quotient between the impedance of 2 frequencies (0.4 and 8 kHz) and is considered as the gold standard EAL [ 6 , 8 ]. Despite their popularity, the use of apex locators has some limitations.…”

Section: Introductionmentioning

confidence: 99%

Effect of Orthodontic Brackets on the Accuracy of Apex Locators: A Pilot Study

Şen

Ulusoy

Paltun

et al. 2021

BioMed Research International

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The purpose of this study was to evaluate the effect of metal orthodontic brackets on the accuracy of electronic apex locator (EAL). The actual canal lengths (ACL) of 40 mandibular incisor teeth were determined. Then, the teeth were randomly divided into two groups ( n = 20 ). Orthodontic metal brackets were applied in the first group, and no brackets, in the second group. The working length of each tooth was measured with an EAL under 3 test conditions according to the distance between the lip clip and sample tooth. Data were analyzed using one-way repeated measures analysis of variance and Tukey’s post hoc tests ( p = 0.05 ). In the bracketed samples, when the lip clip was located at 1 cm and 2 cm from the samples. The mean differences between the EAL measurements and ACLs were statistically higher than those when the samples were located 3 cm from the lip clip ( p < 0.05 ). There were also statistically significant differences between EAL measurements and ACLs in the bracketed samples located 1 and 2 cm from the lip clip ( p < 0.05 ). In the nonbracketed group, the differences between EAL measurements and ACLs were not statistically significant in the samples located 1, 2, and 3 cm from the lip clip ( p > 0.05 ). Use of orthodontic metal brackets can negatively influence the accuracy of the electronic apex locator when the distance between the lip clip and bracket was short. A minimum of 3 cm distance should be kept between the lip clip and tooth in order to make consistent electronic measurements.

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“…An important goal of endodontic therapy is to clean the root canal system (RCS) thoroughly, removing all living or necrotic pulp content, and bacteria and their by‐products to allow effective sealing, ensuring the success of the treatment (1‐3). Thus, from a biological point of view, chemical–mechanical preparation must be performed along the entire length of the root canal.…”

Section: Introductionmentioning

confidence: 99%

The accuracy of electronic apex locators for determining working length: An in vitro study with artificial teeth

et al. 2020

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This study aimed to determine the accuracy of four electronic apex locators (EALs) (I‐Root, Propex Pixi, Novapex and Bassi iRoot Apex), using artificial mandibular and maxillary permanent molars. The root length (RL) from 40 artificial teeth was initially determined with Kerr hand files. Then, the electronic RL were obtained for the same root canals with each EAL, and the results were compared with those obtained using hand files. The accuracy of the EALs was determined through analysis of the divergences observed in relation to the lengths obtained with files. All EALs were effective for determining the RL in the artificial teeth, showing results similar to those obtained by hand. The Bassi iRoot Apex had higher accuracy (96.7%) than the Propex Pixi (89.1%) and Novapex (85.8%) (P < 0.05). Based on the results, all EALs tested had a similar performance, and artificial teeth may be used to determine the accuracy of these devices.

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In Vivo Evaluation of 3 Electronic Apex Locators: Root ZX Mini, Apex ID, and Propex Pixi

Cited by 32 publications

References 31 publications

Evaluation of the accuracy of different apex locators in determiningthe working length during root canal retreatment

Evaluation of the accuracy of different apex locators in determiningthe working length during root canal retreatment

Effect of Orthodontic Brackets on the Accuracy of Apex Locators: A Pilot Study

The accuracy of electronic apex locators for determining working length: An in vitro study with artificial teeth

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