Investigating the Antibacterial Ability of Sodium Hypochlorite Solution Activated with PUI and XPF File Against <i>Enterococcus faecalis</i> Using CFU, RT-PCR, and SEM

Eradication of microorganisms present in the root canal system during endodontic therapy is one of the critical factors affecting the final outcome of endodontic treatment. However, even adequate technique of the root canal treatment and use of irrigants according to the established protocol does no...

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Main Authors: Radovan Jovanović, Jugoslav Ilić, Ljiljana Šubarić, Zoran Vlahović, Sanja Simić, Zoran Arsić, Milena Radunović, Branka Popović
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Bioengineering
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Online Access:https://www.mdpi.com/2306-5354/11/11/1086
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author Radovan Jovanović
Jugoslav Ilić
Ljiljana Šubarić
Zoran Vlahović
Sanja Simić
Zoran Arsić
Milena Radunović
Branka Popović
author_facet Radovan Jovanović
Jugoslav Ilić
Ljiljana Šubarić
Zoran Vlahović
Sanja Simić
Zoran Arsić
Milena Radunović
Branka Popović
author_sort Radovan Jovanović
collection DOAJ
description Eradication of microorganisms present in the root canal system during endodontic therapy is one of the critical factors affecting the final outcome of endodontic treatment. However, even adequate technique of the root canal treatment and use of irrigants according to the established protocol does not lead to the complete elimination of microorganisms during endodontic treatment. The presence of <i>Enterococcus</i> (<i>E</i>.) <i>faecalis</i> inside the root canal system may be an important factor contributing to the failure of the treatment. Introducing agitation techniques in irrigation, such as passive ultrasonic irrigation (PUI) and the use of the activating instrument XP-endo Finisher (XPF), contribute to a better debridement and disinfection of the root canal. This study was conducted on 42 root canals experimentally inoculated with <i>E. faecalis</i> and exposed to three irrigation protocols. These have included a standard irrigation protocol using a syringe and needle, passive ultrasonic irrigation, and activation of the irrigant using an XPF instrument. The reduction in microorganisms was evaluated using the quantitative polymerase chain reaction in real-time (RT-PCR) as well as via the method of determining the number of colony forming units on nutrient medium (CFUs). The results of this study showed that the use of supplementary irrigation protocols, PUI, and XPF led to a significant decrease in the number of microorganisms inside the root canal of experimental teeth. These findings indicate a significant positive impact of these procedures on the disinfection of the root canal system.
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spelling doaj-art-e1c62edfc04c474b91cd28928d78aa3e2025-08-20T02:07:58ZengMDPI AGBioengineering2306-53542024-10-011111108610.3390/bioengineering11111086Investigating the Antibacterial Ability of Sodium Hypochlorite Solution Activated with PUI and XPF File Against <i>Enterococcus faecalis</i> Using CFU, RT-PCR, and SEMRadovan Jovanović0Jugoslav Ilić1Ljiljana Šubarić2Zoran Vlahović3Sanja Simić4Zoran Arsić5Milena Radunović6Branka Popović7Dental Clinic, Faculty of Medicine, University of Priština in Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaDepartment of Restorative Odontology and Endodontics, School of Dental Medicine, University of Belgrade, 11000 Beograd, SerbiaDental Clinic, Faculty of Medicine, University of Priština in Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaDental Clinic, Faculty of Medicine, University of Priština in Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaDental Clinic, Faculty of Medicine, University of Priština in Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaDental Clinic, Faculty of Medicine, University of Priština in Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaDepartment of Microbiology and Immunology, School of Dental Medicine, University of Belgrade, 11000 Beograd, SerbiaDepartment of Human Genetics, School of Dental Medicine, University of Belgrade, 11000 Beograd, SerbiaEradication of microorganisms present in the root canal system during endodontic therapy is one of the critical factors affecting the final outcome of endodontic treatment. However, even adequate technique of the root canal treatment and use of irrigants according to the established protocol does not lead to the complete elimination of microorganisms during endodontic treatment. The presence of <i>Enterococcus</i> (<i>E</i>.) <i>faecalis</i> inside the root canal system may be an important factor contributing to the failure of the treatment. Introducing agitation techniques in irrigation, such as passive ultrasonic irrigation (PUI) and the use of the activating instrument XP-endo Finisher (XPF), contribute to a better debridement and disinfection of the root canal. This study was conducted on 42 root canals experimentally inoculated with <i>E. faecalis</i> and exposed to three irrigation protocols. These have included a standard irrigation protocol using a syringe and needle, passive ultrasonic irrigation, and activation of the irrigant using an XPF instrument. The reduction in microorganisms was evaluated using the quantitative polymerase chain reaction in real-time (RT-PCR) as well as via the method of determining the number of colony forming units on nutrient medium (CFUs). The results of this study showed that the use of supplementary irrigation protocols, PUI, and XPF led to a significant decrease in the number of microorganisms inside the root canal of experimental teeth. These findings indicate a significant positive impact of these procedures on the disinfection of the root canal system.https://www.mdpi.com/2306-5354/11/11/1086<i>E. faecalis</i>endodonticirrigationinfected canalultrasonic
spellingShingle Radovan Jovanović
Jugoslav Ilić
Ljiljana Šubarić
Zoran Vlahović
Sanja Simić
Zoran Arsić
Milena Radunović
Branka Popović
Investigating the Antibacterial Ability of Sodium Hypochlorite Solution Activated with PUI and XPF File Against <i>Enterococcus faecalis</i> Using CFU, RT-PCR, and SEM
Bioengineering
<i>E. faecalis</i>
endodontic
irrigation
infected canal
ultrasonic
title Investigating the Antibacterial Ability of Sodium Hypochlorite Solution Activated with PUI and XPF File Against <i>Enterococcus faecalis</i> Using CFU, RT-PCR, and SEM
title_full Investigating the Antibacterial Ability of Sodium Hypochlorite Solution Activated with PUI and XPF File Against <i>Enterococcus faecalis</i> Using CFU, RT-PCR, and SEM
title_fullStr Investigating the Antibacterial Ability of Sodium Hypochlorite Solution Activated with PUI and XPF File Against <i>Enterococcus faecalis</i> Using CFU, RT-PCR, and SEM
title_full_unstemmed Investigating the Antibacterial Ability of Sodium Hypochlorite Solution Activated with PUI and XPF File Against <i>Enterococcus faecalis</i> Using CFU, RT-PCR, and SEM
title_short Investigating the Antibacterial Ability of Sodium Hypochlorite Solution Activated with PUI and XPF File Against <i>Enterococcus faecalis</i> Using CFU, RT-PCR, and SEM
title_sort investigating the antibacterial ability of sodium hypochlorite solution activated with pui and xpf file against i enterococcus faecalis i using cfu rt pcr and sem
topic <i>E. faecalis</i>
endodontic
irrigation
infected canal
ultrasonic
url https://www.mdpi.com/2306-5354/11/11/1086
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