Year : 2015

Volume : Volume 5

Issue : Issue 1

Address for correspondence :
Dr. Siddhart Bardia
dr.siddhartbardia@gmail.com

Abstract

Aim: To evaluate and to compare the cleaning efficacy of different endodontic irrigants (5.25% Sodium Hypochlorite, 15% Citric Acid, 17% EDTA, SmearClear) in removal of calcium hydroxide from the root canals through scanning electron microscopic image analysis.
Materials and Methods: 44 freshly extracted human mandibular premolars with straight roots with single canals were decoronated 12mm from the apex. Root canal preparation was performed using K-files and NiTi Protaper File with apical preparation till #30 size followed by a final irrigation with 15ml of 5.25% sodium hypochlorite and 15ml of 17% EDTA solution. Ca(OH)2 was filled and temporarily sealed with IRM and kept in incubator for 1 week. 40 roots were randomly divided into 4 groups ie. Group I 5.25% Sodium hypochlorite, Group II 15% Citric acid, Group III 17% EDTA and Group IV Smear Clear. For each sample, 15ml of the irrigating substance was used and splitting was done to observe in scanning electron microscope. Results: Maximum amount of cleanliness was seen with Group IV (SmearClear) and least with Group I and Group II and Group III showed similar results. Conclusion: None of the irrigating solutions were able to remove Ca(OH)2 completely but SmearClear performed the best among all the groups.
Keywords: Calcium Hydroxide, Chelators, EDTA, Intracanal medicament, Surfactant.