Efficacy of irrigation systems on penetration of sodium hypochlorite to working length and to simulated uninstrumented areas in oval shaped root canals

Gregorio, César de; Paranjpe, Avina; García, Antonio Fernández; Navarrete, Natalia; Luaña, Roberto Estévez; Esplugues, Enrique O.; Cohenca, Nestor

doi:10.1111/j.1365-2591.2011.01999.x

Cited by 44 publications

(40 citation statements)

References 31 publications

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“…As accessory canal position and status is difficult to determine in a clinical setting, a standardized model simulating accessory canals and capable of yielding repeatable results was used in this study. 5,7,9 The EDTA was used in the MDA group during agitation of the irrigant, as repeated rubbing of gutta-percha cone against the wall can result in the formation of smear layer. 12 On the contrary, removal of smear layer occurs when PUI is used with NaOCl.…”

Section: Discussionmentioning

confidence: 99%

“…1 Manual irrigation includes positive pressure irrigation, which is commonly performed with a syringe and a side-vented needle. 5 These needles are close ended with a lumen 2 mm from their end on lateral surface, creating turbulence around the end of the needle, directed toward the apex with a divergence of approximately 30°. 6 Manual dynamic agitation (MDA) has been described as a simple and cost-effective technique for activation of the irrigant.…”

Section: Introductionmentioning

confidence: 99%

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Effectiveness of Ultrasonic and Manual Dynamic Agitation Techniques in Irrigant Penetration: An in vitro Study

Khare¹,

Suprabha

Yadav³

et al. 2017

World Journal of Dentistry

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Aim:The aim is to compare the extent of irrigant penetration into root canals up to the working length and in simulated lateral canals after passive ultrasonic irrigation (PUI) and manual dynamic agitation (MDA). Materials and methods:Root canals of 36 single-rooted extracted teeth were shaped using rotary files. Irrigation was done with 5.25% sodium hypochlorite and 17% ethylenediaminetetraaceticacid. Teeth were decalcified in 5% nitric acid. Lateral canals were created by inserting 10 K-files and then, the teeth were cleared using methyl salicylate. Samples were randomly divided into three groups of 12 teeth each: Group I -Control, group II -PUI, and group III -MDA. A contrast solution was delivered to the root canals during final irrigation and activation. Specimens were photographed using dental operating microscope, and the mean length of dye penetration was measured.Results: Data were analyzed using analysis of variance (ANOVA), Tukey test, and repeated measures ANOVA. Passive ultrasonic irrigation group showed the highest penetration of the irrigant upto the working length followed by MDA. Manual dynamic agitation and PUI groups had equivocal results in lateral canal irrigation. Conclusion:Passive ultrasonic irrigation technique is the most effective in delivering the irrigants up to the working length. The effectiveness of PUI and MDA is equivocal in lateral canal irrigation, and hence, MDA can be considered an alternative to PUI, in the case of nonavailability of PUI. Clinical significance:The clinician can consider the use of MDA technique for irrigant agitation in root canals as an alternative to PUI, based on the extent of irrigant penetration.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effectiveness of Ultrasonic and Manual Dynamic Agitation Techniques in Irrigant Penetration: An in vitro Study

Khare¹,

Suprabha

Yadav³

et al. 2017

World Journal of Dentistry

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“…20 My presentation at this year's BDA Conference will address these issues and allow the attendee to cut through the information available to enable the right decision to be made when investing in a file system suitable for their own practice.…”

Section: Totally New Conceptmentioning

confidence: 99%

Rotation or reciprocation: a contemporary look at NiTi instruments?

Prichard

2012

Br Dent J

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“…Because of the inability to analyse commonly used irrigant penetration and distribution in the root canal system, researchers have recently relied on the radiographic tracing of radiopaque solutions (1)(2)(3)(4)(5)(6)(7)(8)(9)(10), or in the observation of cleared teeth (1-3), using sodium hypochlorite (NaOCl) solutions made directly visible by the addition of dyes.…”

Section: Introductionmentioning

confidence: 99%

Effect of an Alcohol-Based Caries Detector on the Surface Tension of Sodium Hypochlorite Preparations

Rossi‐Fedele

Guastalli

2015

Braz. Dent. J.

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The purpose of this study was to evaluate the effect of an alcohol-based caries detector (Kurakay) on the surface tension of a conventional sodium hypochlorite (NaOCl) preparation, and a product containing a surface-active agent (Chlor-XTRA). The surface tensions of the following solutions were tested: NaOCl, a mixture of NaOCl and Kurakay 9:1 w/w, Chlor-XTRA, a mixture of Chlor-XTRA and Kurakay 9:1 w/w. Ten measurements per test solution were made at 20 °C, using an optical method called the "Pendant drop method", with a commercially available apparatus. The addition of Kurakay reduced the surface tension for NaOCl (p<0.05) whilst no significant difference was detected for Chlor-XTRA (p>0.05). Statistically significant differences between the NaOCl and Chlor-XTRA groups were found (p<0.05). The addition of an alcohol-based caries detector resulted in a reduction of the original surface tension values for NaOCl only. Taking into account the fact that mixtures of NaOCl and Kurakay have been used to assess the penetration of root canal irrigants in vitro, the related changes in surface tension are a possible source of bias.

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Efficacy of irrigation systems on penetration of sodium hypochlorite to working length and to simulated uninstrumented areas in oval shaped root canals

Abstract: In this laboratory model, ANP was the only delivery system capable of irrigating consistently to full WL. None of the systems tested produced complete irrigation in artificial lateral canals.

Cited by 44 publications

References 31 publications

Effectiveness of Ultrasonic and Manual Dynamic Agitation Techniques in Irrigant Penetration: An in vitro Study

Effectiveness of Ultrasonic and Manual Dynamic Agitation Techniques in Irrigant Penetration: An in vitro Study

Rotation or reciprocation: a contemporary look at NiTi instruments?

Effect of an Alcohol-Based Caries Detector on the Surface Tension of Sodium Hypochlorite Preparations

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