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Volume 2 Issue 4 Oct - Dec 2018

Original Articles

COMPARISON OF THE EFFECT OF DIFFERENT IRRIGANTS ON SMEAR LAYER REMOVAL DURING ROOT CANAL PREPARATION.
Amit Sood, Shweta Munjal

Background: Sodium hypochlorite (NaOCl) is the most widely used endodontic irrigant as it fulfills most of the requirements of an ideal irrigant. It has certain drawbacks, chiefly severe soft-tissue damage. Thus, this in vitro study was conducted to compare the effect of different irrigants on smear layer removal during root canal preparation. Materials and methods: Thirty single rooted human maxillary premolars were used and divided into three groups. Instrumentation was performed with K-Flex files with the crown-down technique; and divided in Group I: canal preparation was performed with 2.5% NaOCl mixed with 17% EDTA in the root canal. Group II: irrigation was performed alternately with 2.5% NaOCl and 17% EDTA. Group III: only 2.5% NaOCl was used during all instrumentation and EDTA for 3 min at the final. The mean scores for the smear layer by Scanning electron microscope after the use of each file were calculated and analysed. Results: There was no significant difference between Group I and Group II, but when both were compared with Group III there was a significant difference (p < 0.05). Conclusion: Our study concluded that there was no significant difference between the groups when NaOCl used with EDTA simultaneously in the canal and NaOCl alternated with EDTA. But, when Group I and Group II were compared with Group III i.e Instrumentation with NaOCl solution and final irrigation with EDTA for 3 mins, there was a significant difference

 
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