Comparative Analysis of Endodontic Smear Layer Removal Efficacy of 0.1% Polyhexanide, Combination of 5% Sodium Hypochlorite, 0.1% Polyhexanide and 0.02% Hypochlorous Acid and 17% Ethylenediaminetetra Acetic Acid Using Scanning Electron Microscope: An Invitro Study
Abstract: Aim: The aim of the study is to evaluate the efficiency of different endodontic irrigants; 0.1%Polyhexanide, combination of 5% sodium hypochlorite, 0.1% polyhexanide and 0.02% hypochlorous acid and 17%Ethylenediaminetetraacetic acid in removing smear layer using scanning electron microscope through in vitro method. Materials and Methods: The present in vitro study was carried out on 45 single-rooted extracted human mandibular premolar teeth with single canal and complete root formation. Teeth were randomly assigned to three groups with 15 teeth in each group. Group I samples were irrigated with 17% ethylenediaminetetraacetic (EDTA) irrigation, Group II with combination of 5% sodium hypochlorite, 0.1% polyhexanide and 0.02% hypochlorous acid, and Group III with 0.1% polyhexanide irrigation. Scanning electron microscope evaluation was done for the assessment of smear layer removal in the coronal, middle, and apical thirds. Comparison of the smear layer removal between the three different groups was done by Kruskal?Wallis test, followed by Mann?Whitney U test for comparing individual groups. A "P" value less than 0.05 was considered to be statistically significant. Results: Statistically significant difference was seen between the two test groups (17% EDTA vs. 0.1%Polyhexanide) in smear layer removal at coronal, middle, and apical thirds of the root canal. The most efficient smear layer removal was seen in Group I with 17% EDTA irrigation followed by combination of 5% sodium hypochlorite, 0.1% polyhexanide and 0.02% hypochlorous acid and the least by 0.1%Polyhexanide in apical third. Conclusion: The present study showed that all the three experimental irrigants removed the smear layer from different tooth levels (coronal, middle, and apical). Final irrigation with 17% EDTA and combination of 5% sodium hypochlorite, 0.1% polyhexanide and 0.02% hypochlorous acid is more efficient than 0.1% Polyhexanide in the removal of smear layer from the apical third of root canal.
Keywords: Endodontic Irrigants, Smear Layer Removal, Polyhexanide, EDTA, Root Canal
How to Cite?: Dr. Archa B, Dr. Swathi Amin, "Comparative Analysis of Endodontic Smear Layer Removal Efficacy of 0.1% Polyhexanide, Combination of 5% Sodium Hypochlorite, 0.1% Polyhexanide and 0.02% Hypochlorous Acid and 17% Ethylenediaminetetra Acetic Acid Using Scanning Electron Microscope: An Invitro Study", Volume 15 Issue 10, October 2026, International Journal of Science and Research (IJSR), Pages: 1-7, https://www.ijsr.net/getabstract.php?paperid=SR26906150417, DOI: https://dx.doi.org/10.21275/SR26906150417