<i>Ex vivo</i> accuracy of three electronic apex locators: Root ZX, Elements Diagnostic Unit and Apex Locator and ProPex

Plotino, Gianluca; Grande, Nicola M.; Brigante, L.; Lesti, B.; Somma, Francesco

doi:10.1111/j.1365-2591.2006.01095.x

Cited by 138 publications

(186 citation statements)

References 53 publications

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“…In this study, the teeth were embedded in alginate to perform the measurements, as this Protocol facilitates samples preparation, provides high degree of stability, and leads to accurate measurements 20,22 . Furthermore, it is reported to be the most reliable and reproducible method 24 . Alginate is able to simulate the periodontal ligament due its relative rigidity, favorable electrical conduction properties and jelly-like consistency, which together allow the circulation of the ions 24 .…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, it is reported to be the most reliable and reproducible method 24 . Alginate is able to simulate the periodontal ligament due its relative rigidity, favorable electrical conduction properties and jelly-like consistency, which together allow the circulation of the ions 24 .…”

Section: Discussionmentioning

confidence: 99%

“…For this reason, the material that is commonly used is 1% agar, saline solution, alginate, gelatin or sponge soaked in saline solution 10,24 . In this study, the teeth were embedded in alginate to perform the measurements, as this Protocol facilitates samples preparation, provides high degree of stability, and leads to accurate measurements 20,22 .…”

Section: Discussionmentioning

confidence: 99%

“…Although numerous studies indicate an increase in the accuracy concerning the determination of the WL by different EALs 5,7,[22][23][24] , the fact that prior cervical preparation of root canals performed with different instruments might affect the accuracy of these devices has not yet been proved. Thus, this study was aimed at evaluating the influence of cervical preparation, using LA-Axxess (SybronEndo) and S1 and Sx ProTaper (Dentsply Maillefer), on the accuracy of Root ZX mini and Joypex 5.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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“…Electronic measurements were carried out in triplicate and the mean value of the three measurements was considered as the result [13,14].…”

Section: Electronic Working Length (Ewl) At Three Stagesmentioning

confidence: 99%

Precisão de um localizador foraminal eletrônico na determinação do comprimento de trabalho durante o retratamento: um estudo in vitro

Lassen

Dotto

Santos

et al. 2016

Rev. Odonto Ciênc. (Online)

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Objective: To assess, in vitro, the accuracy of MiniApex ® for electronic working length (EWL) determination during three stages of root canal treatment/retreatment: EWL-1 (during treatment), EWL-2 (after filling removal), and EWL-3 (after reinstrumentation). Methods: EWL was determined when the MiniApex ® display showed the green light at the '0.5' mark and compared with radiographic findings. Results were classified as accurate when the file tip was located in a range of (1) 0.5 to 1.0 mm and (2) 0.5 to 2.0 mm from the radiographic apex, and as inaccurate when the file tip was outside that range of values. Means were compared between groups, considering all values and only accurate measurements, for both tolerance limits. Results: MiniApex ® was highly accurate at the larger tolerance range (0.5-2.0mm): 82.3% (EWL-1), 88.2% (EWL-2), and 91.1% (EWL-3). During root canal retreatment, EWL-3 provided more accurate measurements than EWL-2, but without statistical difference (p>0.05). There was no statistical difference (p>0.05) when only accurate measurements were evaluated. Conclusion: MiniApex ® was highly accurate to determine the location of the instrument tip at 0.5 to 2.0mm from the radiographic apex during treatment and retreatment (EWL-2 and EWL-3).Key words: Odontometry; Retreatment; Dental pulp cavity; Endodontics Precisão de um localizador foraminal eletrônico na determinação do comprimento de trabalho durante o retratamento: um estudo in vitro Resumo Objetivo: Avaliar, in vitro, a precisão do localizador MiniApex ® na determinação do comprimento de trabalho eletrônico (CTE) em três estágios do tratamento/retratamento de canais: CTE-1 (durante o tratamento), CTE-2 (após a remoção da obturação) e CTE-3 (após o repreparo do canal radicular). Métodos: O CTE foi definido quando o display do MiniApex ® mostrou luz verde na marca de '0,5', e foi confirmado radiograficamente. Os resultados foram classificados como precisos quando a ponta do instrumento se localizava a (1) 0,5-1,0 mm ou a (2) 0,5-2,0 mm do ápice radiográfico, e como imprecisos quando a mensuração ficava fora desses valores. As médias foram comparadas entre os grupos considerando todos os valores e apenas valores precisos, para ambos os limites de tolerância. Resultados: O MiniApex ® foi efetivo considerando-se o limite maior de tolerância (0,5-2,0mm): 82,3% (CTE-1), 88,2% (CTE-2) e 91,1% (CTE-3). Durante o retratamento, CTE-3 demonstrou mensurações mais precisas do que CTE-2, porém sem diferença estatística (p>0,05). Não foram observadas diferenças estatísticas (p>0,05) entre as mensurações precisas. Conclusão: O MiniApex ® foi confiável na determinação do comprimento de trabalho considerando as medidas compreendidas no intervalo de 0,5-2,00mm do ápice radiográfico durante o tratamento e retratamento de canal (CTE-2 e CTE-3).

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Advances in Working Length Determination

Nekoofar¹

2022

Endodontic Advances and Evidence‐Based Clinical Guidelines

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Ex vivo accuracy of three electronic apex locators: Root ZX, Elements Diagnostic Unit and Apex Locator and ProPex

Abstract: The results of the present study confirm that the EALs determined the canal length within +/-0.5 mm from the apical constriction in the majority of cases. The majority of the ProPex readings were long.

Cited by 138 publications

References 53 publications

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

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

Precisão de um localizador foraminal eletrônico na determinação do comprimento de trabalho durante o retratamento: um estudo in vitro

Advances in Working Length Determination

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