Effect of preflaring on Root ZX apex locators

Ibarrola, Jose L.; Chapman, Brent L.; Howard, J; Knowles, Kenneth I.; Ludlow, Marvin O.

doi:10.1016/s0099-2399(99)80323-9

Cited by 85 publications

(97 citation statements)

References 10 publications

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“…This increase is similar to those found in previous studies that used other EALs 15,[20][21] . This result can be due to a better adjustment of the file to the apical third 26 , promoting less exposure of metallic surface to the surrounding electrolyte and allowing the impedance reading in that region to be more effective 10 .…”

Section: Discussionsupporting

confidence: 91%

“…Cervical preparation is an essential step during endodontic treatment because it facilitates the reach and the action of instruments in the apical third [14][15][16] . However, whether enlargement of the cervical third and the type of instrument that is used to accomplish this task are able to significantly affect the precision of the EALs is not yet clear in the literature.…”

Section: Discussionmentioning

confidence: 99%

“…Cervical preparations are intended to facilitate the insertion of the instruments up to the apical third of the root canal [13][14][15] , and reduce the amount of microorganisms that can be pushed to the periapical zone 16 . This procedure can be performed using manual or mechanical techniques 17 , with the aid of different instruments, such as Hedstroem files, IT-Axxess and Gates-Glidden drills, and rotational instruments, such as the S1 and Sx by ProTaper system 16,18,19 .…”

Section: Introductionmentioning

confidence: 99%

“…Studies have shown that when the determination of WL was performed without prior cervical enlargement, there was a higher incidence of cases where the file stopped short of or beyond the apical limit of the root canal 14,16 . To date, few studies that evaluated the influence of cervical preparation on measurements by EALs suggest that the accuracy of some devices was increased after cervical preparation 15,[20][21] .…”

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: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

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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“…1 Kuttler, demostró que este límite anatómico se encontraba localizado entre 0.524 y 0.659 mm coronal al foramen apical. 5 Los primeros localizadores apicales fueron desarrollados en el año de 1942 por Suzuki, [6][7][8] posteriormente en 1962, Sunada utilizó un dispositivo de corriente directa en un circuito simple y encontró la constante de la resistencia eléctrica para el ligamento periodontal y la membrana mucosa con un valor de (6,5kO).…”

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Evaluación in Vitro De La Eficacia Del Localizador Apical Root Zx en Presencia De Hipoclorito De Sodio Combinado Con Rc-Prep O Edta Comparado Al Microscopio Electrónico De Barrido

Plata

Navas

2018

UstaSalud

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RESUMENObjetivo: Evaluar la eficacia del localizador Root ZX para determinar la Constricción Apical en presencia de hipoclorito de sodio al 5.25% Clorox ® combinado con Rc-prep. Premier ® y el hipoclorito de sodio al 5.25% Clorox ® combinado con EDTA al 10% Eufar ® en dientes uniradiculares. Materiales y métodos: Se realizó un estudio experimental in vitro con 12 dientes uniradiculares divididos aleatoriamente en tres grupos: Grupo 1 (n = 12) hipoclorito de Sodio al 5.25% Clorox ® ; Grupo 2 (n = 6) hipoclorito de Sodio al 5.25% Clorox ® combinado con Rc-prep. Premier ® ; Grupo 3 (n = 6) hipoclorito de Sodio al 5.25% Clorox ® combinado con EDTA al 10% Eufar ® . Se utilizó el Root ZX para localizar la Constricción Cemento Dentina Conducto (CDC). Posteriormente, las muestras fueron divididas longitudinalmente, cubiertas con oro y observadas en el Microscopio Electrónico de Barrido (SEM), para corroborar la eficacia del instrumento en la localización de la CDC. Resultados: Se encontraron diferencias estadísticamente significativas entre los dos instrumentos de medición (Root ZX y SEM) y para cada grupo de tratamiento. Con el hipoclorito de sodio y Rc -Prep, se obtuvo una medida más larga, en comparación con la obtenida con el SEM; una diferencia de 0.788 mm. Por el contrario, el grupo del hipoclorito de sodio al 5.25% con EDTA al 10% expresó una medida más corta con relación a la obtenida en el SEM, dando una diferencia estadísticamente significativa de -0.766 mm. Conclusiones: Se podría sugerir que el Root ZX es eficaz en la localización de la Constricción Apical con un nivel de tolerancia de +/-1 mm. [Gay MM, Varón ME, Serrano OG. Evaluación in vitro de la eficacia del localizador apical Root ZX en presencia de hipoclorito de sodio combinado con Rc Prep o EDTA comparado con el Microscopio Electrónico de Barrido. Ustasalud Odontología 2003; 2: 97 -106] PALABRAS CLAVE: Root ZX, constricción apical, hipoclorito de sodio.In vitro evaluation of the effectiveness of the apical locator Root ZX in presence of sodium hypochlorite combined with Rc -Prep or Edta compared with scanning electron microscope ABSTRACT Purpose: To assess the effectiveness of the Root Zx to determine the Cement -Dentin -Canal junction (CDC) in the presence of sodium hypochlorite 5,25% Clorox ® ; combined with Rc-prep. Premier ® and sodium hypochlorite 5.25% Clorox ® combined with EDTA 10% Eufar ® in uniradicular teeth. Material and methods: An experimental study in vitro with 12 uniradicular teeth was done. They wered divided in three groups: Grupo 1 (n = 12) sodium hypochlorite 5,25% Clorox ® ; Group 2 (n = 6) sodium hypochlorite 5.25%Clorox ® combined with Rc-Prep. Premier ® ; Group 3 (n = 6) sodium hypochlorite 5,25% Clorox ® combined with EDTA 10% Eufar ® . Root ZX was used to locate the CDC; the samples were divided longitudinally, covered with gold and observed at the SEM, to corroborate the effectiveness of the instrument in the location of the CDC.Results: The results demonstrate statistically significant differences between Root ZX and SEM...

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Electronic Apex Locators and Conventional Radiograph in Working Length Measurement

Malkhassian¹,

Plazas²,

Nahmias³

2012

Endodontic Radiology

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Effect of preflaring on Root ZX apex locators

Cited by 85 publications

References 10 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

Evaluación in Vitro De La Eficacia Del Localizador Apical Root Zx en Presencia De Hipoclorito De Sodio Combinado Con Rc-Prep O Edta Comparado Al Microscopio Electrónico De Barrido

Electronic Apex Locators and Conventional Radiograph in Working Length Measurement

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