An In Vitro Evaluation of Performance of Two Electronic Root Canal Length Measurement Devices during Retreatment of Different Obturating Materials

Aggarwal, Vivek; Singla, Mamta; Kabi, Debipada

doi:10.1016/j.joen.2010.04.016

Cited by 19 publications

(26 citation statements)

References 34 publications

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“…The literature has already produced studies showing that the choice of different tolerance ranges may lead to changes in the number of accurate measurements. In a recent study, Aggarwal et al [1] found accuracy rates of 83.3% and 93.3% for Root ZX and ProPex, respectively, for a tolerance limit of ±0.5 mm and 100% for a tolerance limit of ±1.0 mm.…”

Section: Discussionmentioning

confidence: 97%

“…Information on the relationship between root canal retreatment and accuracy of electronic foramen locators (EFLs) is still scarce [1,2]. In the clinical practice of endodontics, electronic working length (EWL) determination is a challenge due to factors that might interfere with the EFL accuracy, such as the possibility of remaining filling material after removal of dental filling and/or modifications that may have occurred in the internal anatomy of the tooth [3].…”

Section: Introductionmentioning

confidence: 99%

“…Also, Root ZX ® II and MiniApex ® EFL proved useful and accurate for apex foramen location during root canal length measurement in primary incisors and molars [12]. Current scientific evidence addressing EFL accuracy during root canal retreatment focuses on different variables, such as filling materials [1] and root-end resected teeth [2]. To our knowledge, there have been no published studies designed to investigate the accuracy of EFLs during different stages of treatment and retreatment.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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show abstract

“…124 No statistically significant effect of different obturation materials has been reported on the accuracy of Root ZX and ProPex for tolerance limits of 0.5 1.0 mm. 125 …”

Section: Introductionmentioning

confidence: 99%

Resilon: A Comprehensive Literature Review

Lotfi,

Ghasemi,

Rahimi

et al. 2013

Journal of Dental Research

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“…Several studies have investigated the use of the EALs, their accuracy in endodontic treatment (12)(13)(14)(15)(16) and retreatment (17), the influence of prior preflaring (18), and their coefficient of repeatability (13).…”

Section: Introductionmentioning

confidence: 99%

An in vivo radiographic evaluation of the accuracy of Apex and iPex electronic Apex locators

et al. 2012

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The aim of this study was to evaluate in vivo the clinical applicability of two electronic apex locators (EALs) - Apex (Septodont) and iPex (NSK) - in different groups of human teeth by using radiography. The working lengths (WLs) of 100 root canals were determined electronically. The EAL to be used first was chosen randomly and a K-file was inserted into the root canal until the EAL display indicated the location of the apical constriction (0 mm). The K-file was fixed to the tooth and a periapical radiograph was taken using a radiographic film holder. The K-file was removed and the WL was measured. The same procedure was repeated using the other EAL. Radiographs were examined with the aid of a light-box with lens of ×4 magnification by two blinded experienced endodontists. The distance between the file tip and the root apex was recorded as follows: (A) +1 to 0 mm, (B) -0.1 to 0.5 mm, (C) -0.6 to 1 mm, (D) -1.1 to 1.5 mm, and (E) -1.6 mm or greater. For statistical purposes, these scores were divided into 2 subgroups according to the radiographic apex: acceptable (B, C, and D) and non-acceptable (A and E). Statistically significant differences were not found between the results of Apex and iPex in terms of acceptable and non-acceptable measurements (p>0.05) or in terms of the distance recorded from file tip and the radiographic apex (p>0.05). Apex and iPex EALs provided reliable measurements for WL determination for endodontic therapy.

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An In Vitro Evaluation of Performance of Two Electronic Root Canal Length Measurement Devices during Retreatment of Different Obturating Materials

Cited by 19 publications

References 34 publications

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

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

Resilon: A Comprehensive Literature Review

An in vivo radiographic evaluation of the accuracy of Apex and iPex electronic Apex locators

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