Smear-layer Removal Using Two Instrumentation and Irrigation Techniques in a Closed System

Sadullah Kaya (1)
(1) Dicle University, Faculty of Dentistry, Department of Endodontics, Diyarbakır, TURKEY, Turkey

Abstract

Aim: The aim of this study was to evaluate the effectiveness of two instrumentation and irrigant techniques in smear-layer removal from root canals.


Methodology: Thirty single-rooted teeth were randomly divided into two groups. Group 1 (continuous irrigation) was prepared using Self-adjusting file, and group 2 (manual irrigation; conventional needle irrigation) was prepared using with ProTaper file system. Groups were irrigated using sodium hypochlorite (5%) as an initial irrigant following MTAD in a closed system. Canals were bisected and examined by scanning electron microscopy. Smear layers were evaluated using a five-point scoring system with 2500x magnification.


Results: Smear layers were eliminated in the coronal, middle, and apical thirds of the root canal, respectively, in 93%, 80%, and 60% of samples in the group 1, and 67%, 60%, and 27% in the group 2, of the coronal, middle, and apical thirds of the root canals, respectively. Evaluation by SEM showed continuous irrigation differed not-significantly from the manual irrigation group in all areas (P >0.05).


Conclusions: Smear layer can be removed properly with suitable irrigation methods.


How to cite this article: Kaya S. Smear-layer Removal Using Two Instrumentation and Irrigation Techniques in a Closed System. Int Dent Res 2012;2:60-66.


Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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Sadullah Kaya
sadullahkaya@hotmail.com (Primary Contact)
Kaya, S. (2012). Smear-layer Removal Using Two Instrumentation and Irrigation Techniques in a Closed System. International Dental Research, 2(3), 60–66. https://doi.org/10.5577/intdentres.2012.vol2.no3.1
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