Determination of impedance changes at varying frequencies in relation to root canal file position and irrigant

Pilot, Ted F.; Pitts, David L.

doi:10.1016/s0099-2399(97)80341-x

Cited by 34 publications

(47 citation statements)

References 15 publications

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“…Conductivity testing of some irrigants allowing the ranking of the most commonly used endodontic solutions from most to least conductive: 5.25% NaOCl solution, 14.45% EDTA sodium, normal saline and finally RC‐Prep similar to 70% isopropyl alcohol, with the last two being essentially nonconductive (Pilot & Pitts 1997). The changes in electrical characteristics when the foramen is approached and passed are minimal when conductive solutions are inside the canal (Pilot & Pitts 1997); this condition would complicate electrical determination of the foramen (Pilot & Pitts 1997). In fact, the mean resistance for dry canals has been reported to be markedly higher than for those containing fluid, ranging from 22.19 kΩ (apex) to 92.07 kΩ (5 mm to the apex), in comparison with 7.46 kΩ (apex) to 8.92 kΩ (5 mm to the apex) for canals containing NaOCl (Meredith & Gulabivala 1997).…”

Section: Discussionmentioning

confidence: 99%

“…The same procedure was repeated for each additional canal and for each other step of the clinical procedure. The second measurement was taken after brief instrumentation with size 08‐20 H‐files (F.K.G. Dentaire) in the middle and coronal third of the canal and after irrigation with 70% isopropyl alcohol used as nonconductive irrigant (Pilot & Pitts 1997). The pulp chamber was gently dried with the air syringe prior to insertion of the size 06 K‐file connected to EAL. The third measurement was taken after lubricating the canal with RC‐Prep (Hawe Neos Dental, Bioggio, Switzerland) using a size 06 instrument connected to the EALs. The fourth measurement was taken after canal instrumentation: a modified double flared technique was performed using stainless steel K‐files sizes 06 to 70 (F.K.G.…”

Section: Tooth Preparationmentioning

confidence: 99%

“…The second measurement was taken after brief instrumentation with size 08‐20 H‐files (F.K.G. Dentaire) in the middle and coronal third of the canal and after irrigation with 70% isopropyl alcohol used as nonconductive irrigant (Pilot & Pitts 1997). The pulp chamber was gently dried with the air syringe prior to insertion of the size 06 K‐file connected to EAL.…”

Section: Tooth Preparationmentioning

confidence: 99%

See 2 more Smart Citations

A comparison between two electronic apex locators: an in vivo investigation

Venturi

Breschi

2004

Int Endodontic J

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Section: Discussionmentioning

confidence: 99%

Section: Tooth Preparationmentioning

confidence: 99%

Section: Tooth Preparationmentioning

confidence: 99%

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A comparison between two electronic apex locators: an in vivo investigation

Venturi

Breschi

2004

Int Endodontic J

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“…The apical constriction was determined from the difference between the two. 12 Kobayashi and Suda 13 improved this idea of relative impedance measurement and introduced the 'ratio method' in 1991, creating an impedance quotient instead of a difference.…”

Section: Introductionmentioning

confidence: 99%

Accuracy of electronic apex locators in comparison to actual length—an in vivo study

Haffner

Folwaczny

Galler

et al. 2005

Journal of Dentistry

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“…Se concluyó que las soluciones no conductoras permiten mejor detección de la posición de la lima en relación con el foramen e intervienen menos con las restauraciones metálicas. 30 Jenkins y colaboradores evaluaron la eficacia del Root ZX utilizando sustancias como la lidocaína al 2% con epinefrina 1:100.000, el hipoclorito de sodio al 0.25%, EDTA, Rc -Prep, Peridex, peróxido de hidrógeno al 3%, y encontraron que su eficacia no se altera con el tipo de irrigante empleado. 8 Weiger y colaboradores reportaron una alta eficacia del localizador apical Root ZX en presencia del hipoclorito de sodio al 1%.…”

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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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Determination of impedance changes at varying frequencies in relation to root canal file position and irrigant

Cited by 34 publications

References 15 publications

A comparison between two electronic apex locators: an in vivo investigation

A comparison between two electronic apex locators: an in vivo investigation

Accuracy of electronic apex locators in comparison to actual length—an in vivo study

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

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