Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2023  |  Volume : 26  |  Issue : 1  |  Page : 31-35

Influence of different irrigant activation methods on apical debris extrusion and bacterial elimination from infected root canals


Department of Conservative Dentistry and Endodontics, Krishnadevaraya College of Dental Sciences, Bengaluru, Karnataka, India

Correspondence Address:
Dr. K Sadia Ada
No: 209 Commanders Pinnacle Apartment, Central Telecom Society, Bengaluru - 562 157, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jcd.jcd_378_22

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Introduction: The study aimed to determine the apical debris extrusion and microbial elimination from infected root canals after using different irrigant activation methods. Materials and Methods: Forty freshly extracted human mandibular premolars were selected and randomly assigned to four groups (n = 10). The teeth were mechanically prepared, sterilized, and inoculated with Enterococcus faecalis for 1 week. Irrigation was done with 3% sodium hypochlorite following conventional syringe irrigation–Group 1, manual dynamic agitation (MDA)–Group 2, passive ultrasonic irrigation (PUI)-UltraX –Group 3, and sonic irrigation (SI)-EndoActivator -Group 4, and the extruded debris were collected using Myers and Montgomery model. The microbial samples were taken from the canals using sterile paper points, cultured and recorded as colonies. The amount of extruded debris was measured by subtracting the final weight of the Eppendorf tube with debris from the initial weight of the tube. Results: I. Group 3 showed the least apical debris extrusion (P < 0.05), followed by Groups 2 and 1 and the highest with Group 4. II. Group 3 showed the least colony-forming units (CFUs)/ml, followed by Group 4, and finally, Group 2 showed lesser mean CFUs/ml compared to Group 1 (P < 0.05). Conclusion: All the irrigation activation methods were associated with apical debris extrusion, with the PUI system extruding the least amount of debris compared to the other groups. Irrigation activation techniques were beneficial in reducing the microbial load from the infected canals with the PUI system showing a complete elimination of the microbes, followed by SI and MDA.


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