Document Detail

Efficacy of different final irrigation activation techniques on smear layer removal.
MedLine Citation:
PMID:  21846546     Owner:  NLM     Status:  In-Data-Review    
INTRODUCTION: Different techniques and irrigant delivery devices have been proposed to increase the flow and distribution of irrigating solutions within the root canal system. The aim of this study was to compare smear layer removal after final irrigant activation with apical negative pressure (ANP), manual dynamic agitation (MDA), and passive ultrasonic irrigation (PUI).
METHODS: Forty single-rooted human mandibular premolars were decoronated to a standardized length of 16 mm. They were cleaned and shaped by using ProTaper system to size F4 and NaOCl 2.5%. The specimens were divided into 4 equal groups (n = 10) according to the final irrigation activation technique: group 1, passive irrigation (PI); group 2, apical negative pressure (ANP) (EndoVac); group 3, manual dynamic activation (MDA); and group 4, passive ultrasonic irrigation (PUI). Samples were split longitudinally and examined under scanning electron microscope for smear layer presence.
RESULTS: PI and PUI had the highest smear scores, with no significant differences between them. This was followed by MDA and finally ANP, which showed the statistically significant lowest mean score at P ≤ .05.
CONCLUSIONS: Final irrigant activation with ANP and MDA resulted in better removal of the smear layer than with PUI or PI.
Shehab El-Din Saber; Ahmed Abdel Rahman Hashem
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Publication Detail:
Type:  Journal Article     Date:  2011-07-16
Journal Detail:
Title:  Journal of endodontics     Volume:  37     ISSN:  1878-3554     ISO Abbreviation:  J Endod     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-08-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7511484     Medline TA:  J Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1272-5     Citation Subset:  D    
Copyright Information:
Copyright © 2011 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
Endodontic Department, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.
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