Clinical reproducibility of three electronic apex locators

Miletić, Vesna; Beljić-Ivanović, Katarina; Ivanović, Vladimir

doi:10.1111/j.1365-2591.2011.01897.x

Cited by 17 publications

(21 citation statements)

References 43 publications

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“…Although these devices seem promising, at the present there are no studies in the available literature evaluating the precision of the RomiApex A-15, both ex vivo and in vivo . As for the Propex II, at the present, its precision has only been evaluated ex vivo at the foramen level, with satisfactory results 6,14 . Despite being based on similar operating systems, these devices have different electronic components with distinct layouts, and the possible variations due to these differences are still unknown.…”

Section: Introductionmentioning

confidence: 92%

“…Recently launched in the market, the RomiApex A-15 (Romidan Ltd., Kyriat Ono, Israel) and the Propex II (Dentsply/Maillefer, Ballaigues, Switzerland), measure the working length by calculating the mean square root values of the impedance at two different frequencies (0.5 and 8.0 kHz), measured separately 6,13,14 . The devices compare the results obtained with reference values stored in its memories and then present the file positions.…”

Section: Introductionmentioning

confidence: 99%

“…The devices compare the results obtained with reference values stored in its memories and then present the file positions. Thus, differing from most ERCLMDs, the RomiApex A-15 and the Propex II operate by detecting the energy of the signal, rather than its amplitude 14 . Although these devices seem promising, at the present there are no studies in the available literature evaluating the precision of the RomiApex A-15, both ex vivo and in vivo .…”

Section: Introductionmentioning

confidence: 99%

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Accuracy of five electronic foramen locators with different operating systems: an ex vivo study

Vasconcelos

Bueno²,

Luna-Cruz

et al. 2013

J. Appl. Oral Sci.

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Objective:The aim of this study was to evaluate, ex vivo, the precision of five electronic root canal length measurement devices (ERCLMDs) with different operating systems: the Root ZX, Mini Apex Locator, Propex II, iPex, and RomiApex A-15, and the possible influence of the positioning of the instrument tips short of the apical foramen.Material and Methods:Forty-two mandibular bicuspids had their real canal lengths (RL) previously determined. Electronic measurements were performed 1.0 mm short of the apical foramen (-1.0), followed by measurements at the apical foramen (0.0). The data resulting from the comparison of the ERCLMD measurements and the RL were evaluated by the Wilcoxon and Friedman tests at a significance level of 5%.Results:Considering the measurements performed at 0.0 and -1.0, the precision rates for the ERCLMDs were: 73.5% and 47.1% (Root ZX), 73.5% and 55.9% (Mini Apex Locator), 67.6% and 41.1% (Propex II), 61.7% and 44.1% (iPex), and 79.4% and 44.1% (RomiApex A-15), respectively, considering ±0.5 mm of tolerance. Regarding the mean discrepancies, no differences were observed at 0.0; however, in the measurements at -1.0, the iPex, a multi-frequency ERCLMD, had significantly more discrepant readings short of the apical foramen than the other devices, except for the Propex II, which had intermediate results. When the ERCLMDs measurements at -1.0 were compared with those at 0.0, the Propex II, iPex and RomiApex A-15 presented significantly higher discrepancies in their readings.Conclusions:Under the conditions of the present study, all the ERCLMDs provided acceptable measurements at the 0.0 position. However, at the -1.0 position, the ERCLMDs had a lower precision, with statistically significant differences for the Propex II, iPex, and RomiApex A-15.

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Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Accuracy of five electronic foramen locators with different operating systems: an ex vivo study

Vasconcelos

Bueno²,

Luna-Cruz

et al. 2013

J. Appl. Oral Sci.

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“…They generally concluded that it would be more objective to evaluate the accuracy of EALs in relation to the major foramen or AF, which seems to be a more reliable and reproducible land mark than the minor foramen or AC [7].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Correlation Between apical Diameter and File Size Using Propex Pixi Apex Locator

Kolanu

Bolla

Sujana

et al. 2014

JCDR

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“…Thencefore, EALs have gained popularity in endodontics 7 . The latest EALs use the principle of alternating current impedance with the processing of two or more different frequencies [8][9][10] . Currently, one of the EALs which has presented satisfactory results is the Mini Root ZX (J. Morita Corp., Tokyo, Japan) 11 , a modified version of Root ZX from the same manufacturer 10 , which measures the impedance of two frequencies simultaneously 12 .…”

Section: Introductionmentioning

confidence: 99%

Influence of the instrument used for cervical preflaring on the precision of 2 Eletronic Apex Locators

Guimarães

Tartari

Fernandes

et al. 2016

RGO, Rev. Gaúch. Odontol.

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ObjectiveThis study was aimed at evaluating the influence of cervical preflaring using LA-Axxes No. 1 bur (SybronEndo, Glendora, USA) or S1 and SX ProTaper files (Dentsply Maillefer, Ballaigues, Switzerland) Results McNemar's test (α<0.05) was used to detect differences in the accuracy of the EALs before and after each preflaring with different instruments, and to detect difference in accuracy among devices. No differences were found concerning the accuracy of the EALs (P > 0.05) after the cervical preflaring, regardless of the used instrument. ConclusionThe preflaring procedure increased the number of accurate measurements for both EALs, with statistical difference for Joypex 5 when the preflaring was performed with LA-Axxess. However, after the cervical preflaring, the EALs showed similar accuracy, regardless of the used instrument.Indexing terms: Dental instruments. Endodontics. Odontometry. RESUMO ObjetivoAvaliar a influência do preparo cervical utilizando a broca LA-Axxess nº 1 (SybronEndo, Glendora, EUA) ou os instrumentos ProTaper S1 e SX (Dentsply Maillefer, Ballaigues, Suíça) na precisão dos Localizadores Apicais Eletrônicos (LAEs): Root ZX mini (J. Morita Corporation, Tóquio, Japão) e Joypex 5 (Denjoy, Changsha, China). MétodosTrinta incisivos inferiores foram acessados e o comprimento do canal radicular (CCR) determinado com uma lima K #15 com o auxílio de um estereomicroscópio. Em seguida, os dentes foram distribuídos em dois grupos (n=15) referentes ao preparo cervical com LA-Axxess ou instrumentos ProTaper. Os dentes foram incluídos em alginato e o CCR determinado pelos LAEs antes e após o preparo cervical. Os dados foram classificados em: precisos, se a diferença na medida do CCR era ≤ 0,05 mm; e imprecisos, se a diferença era >0,5 mm ou estava além do CCR.Resultados O teste de McNemar (α<0.05) foi utilizado para detectar diferenças na precisão dos LAEs antes e após o preparo com os diversos instrumentos, e para detectar diferenças na precisão entre os aparelhos. Não foram identificadas diferenças na precisão entre os dois LAEs (P>0,05) após o preparo cervical, indiferente do instrumento utilizado. ConclusãoO preparo cervical aumentou o número de medições precisas dos LAEs, com diferença estatística para Joypex 5 após o uso da LA-Axxess, contudo os aparelhos apresentaram precisão similar após o preparo cervical, indiferente do instrumento utilizado.

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Clinical reproducibility of three electronic apex locators

Cited by 17 publications

References 43 publications

Accuracy of five electronic foramen locators with different operating systems: an ex vivo study

Accuracy of five electronic foramen locators with different operating systems: an ex vivo study

Evaluation of Correlation Between apical Diameter and File Size Using Propex Pixi Apex Locator

Influence of the instrument used for cervical preflaring on the precision of 2 Eletronic Apex Locators

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