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Comparison of the Efficacy of Maleic Acid and Ethylenediaminetetraacetic Acid in Smear Layer Removal from Instrumented Human Root Canal: A Scanning Electron Microscopic Study

Ballal, Vasudev and Kandian, Sreenesh and Mala, Kundabala and Bhat, Seetharama Kadengodlu and Acharya, Shashirashmi (2009) Comparison of the Efficacy of Maleic Acid and Ethylenediaminetetraacetic Acid in Smear Layer Removal from Instrumented Human Root Canal: A Scanning Electron Microscopic Study. JOE, 35 (11). pp. 1573-1575.

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Abstract

The aim of this study was to assess, by scanning electron microscopic (SEM) analysis, the ability of 17% EDTA and 7% maleic acid in the removal of the smear layer from the human root canal system. Methods: Eighty single-rooted human anterior teeth were subjected to standardized root canal instrumentation (step-back technique) and were irrigated with 2.5% NaOCl after each instrument. Based on the final irrigating solution used, samples were divided randomly into three groups: (1) the EDTA group: 17% EDTA+ 2.5% NaOCl (n = 30), (2) the maleic acid group: 7% maleic acid + 2.5% NaOCl (n = 30), and (3) the control group: 0.9% saline (n = 20). After final irrigation, teeth were prepared for SEM analysis to evaluate the cleaning of the coronal, middle, and apical thirds of radicular dentin by determining the presence or absence of smear layer. The data was statistically analyzed using the Kruskall- Wallis test. Results: At the coronal and middle thirds, there was no significant difference between EDTA and maleic acid. Both were equally efficient in the removal of smear layer. In the apical third, maleic acid showed ignificantly better smear layer removing ability than EDTA. Conclusion: Final irrigation with 7% maleic acid is ore efficient than 17%EDTA in the removal of smear layer from the api al third of the root canal system, which is a crucial area for disinfection.

Item Type: Article
Uncontrolled Keywords: EDTA, maleic acid, scanning electron microscope, smear layer
Subjects: Dentistry > MCODS Manipal > Conservative Dentistry and Endontics
Depositing User: KMC Manipal
Date Deposited: 14 Jul 2011 04:58
Last Modified: 16 Oct 2013 06:45
URI: http://eprints.manipal.edu/id/eprint/140

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