Debris Removal by Activation of Endodontic Irrigants in Complex Root Canal Systems: A Standardized <i>In-Vitro</i>-Study
Aim of the study was to develop a standardized model system to investigate endodontic irrigation techniques and assess the efficiency of different activation methods on the removal of hard tissue debris in complex root canal systems. Mesial roots of mandibular molars were firstly scanned by micro-co...
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doaj-90ab0b33c5804e618d7872d5c66a664f2021-08-26T13:29:35ZengMDPI AGApplied Sciences2076-34172021-08-01117331733110.3390/app11167331Debris Removal by Activation of Endodontic Irrigants in Complex Root Canal Systems: A Standardized <i>In-Vitro</i>-StudyMatthias Widbiller0Lukas Keim1Ralf Schlichting2Birgit Striegl3Karl-Anton Hiller4Rebecca Jungbauer5Wolfgang Buchalla6Kerstin M. Galler7Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, 93053 Regensburg, GermanyDepartment of Conservative Dentistry and Periodontology, University Hospital Regensburg, 93053 Regensburg, GermanyIndependent Researcher, 94032 Passau, GermanyDepartment of Biomedical Engineering, Technical University of Applied Sciences (OTH), 15745 Regensburg, GermanyDepartment of Conservative Dentistry and Periodontology, University Hospital Regensburg, 93053 Regensburg, GermanyDepartment of Orthodontics, University Hospital Regensburg, 93053 Regensburg, GermanyDepartment of Conservative Dentistry and Periodontology, University Hospital Regensburg, 93053 Regensburg, GermanyDepartment of Conservative Dentistry and Periodontology, University Hospital Regensburg, 93053 Regensburg, GermanyAim of the study was to develop a standardized model system to investigate endodontic irrigation techniques and assess the efficiency of different activation methods on the removal of hard tissue debris in complex root canal systems. Mesial roots of mandibular molars were firstly scanned by micro-computed tomography (µCT) and allocated to three groups of irrigant activation: sonic activation (EDDY, VDW, Munich, Germany), laser activation (AutoSWEEPS, FOTONA, Ljubljana, Slovenia) and conventional needle irrigation (control). Roots were fixed in individual 3D-printed holders to facilitate root canal enlargement under constant irrigation with NaOCl (5%). To enable standardized quantification of remaining debris, BaSO<sub>4</sub>-enriched dentine powder was compacted into the canals, followed by another µCT-scan. The final irrigation was performed using 17% ethylenediaminetetraacetic acid (EDTA) and 5% sodium hypochlorite (NaOCl) with the respective activation method, and the volume of remaining artificial debris was quantified after a final µCT-scan. The newly developed model system allowed for reliable, reproducible and standardized assessment of irrigation methods. Activation of the irrigant proved to be significantly more effective than conventional needle irrigation regarding the removal of debris, which persisted particularly in the apical third of the root canal in the control group. The efficiency of irrigation was significantly enhanced with laser- and sonic-based activation, especially in the apical third.https://www.mdpi.com/2076-3417/11/16/7331disinfectionsodium hypochloriteethylenediaminetetraacetic acidlaserscomputed tomography |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Matthias Widbiller Lukas Keim Ralf Schlichting Birgit Striegl Karl-Anton Hiller Rebecca Jungbauer Wolfgang Buchalla Kerstin M. Galler |
spellingShingle |
Matthias Widbiller Lukas Keim Ralf Schlichting Birgit Striegl Karl-Anton Hiller Rebecca Jungbauer Wolfgang Buchalla Kerstin M. Galler Debris Removal by Activation of Endodontic Irrigants in Complex Root Canal Systems: A Standardized <i>In-Vitro</i>-Study Applied Sciences disinfection sodium hypochlorite ethylenediaminetetraacetic acid lasers computed tomography |
author_facet |
Matthias Widbiller Lukas Keim Ralf Schlichting Birgit Striegl Karl-Anton Hiller Rebecca Jungbauer Wolfgang Buchalla Kerstin M. Galler |
author_sort |
Matthias Widbiller |
title |
Debris Removal by Activation of Endodontic Irrigants in Complex Root Canal Systems: A Standardized <i>In-Vitro</i>-Study |
title_short |
Debris Removal by Activation of Endodontic Irrigants in Complex Root Canal Systems: A Standardized <i>In-Vitro</i>-Study |
title_full |
Debris Removal by Activation of Endodontic Irrigants in Complex Root Canal Systems: A Standardized <i>In-Vitro</i>-Study |
title_fullStr |
Debris Removal by Activation of Endodontic Irrigants in Complex Root Canal Systems: A Standardized <i>In-Vitro</i>-Study |
title_full_unstemmed |
Debris Removal by Activation of Endodontic Irrigants in Complex Root Canal Systems: A Standardized <i>In-Vitro</i>-Study |
title_sort |
debris removal by activation of endodontic irrigants in complex root canal systems: a standardized <i>in-vitro</i>-study |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-08-01 |
description |
Aim of the study was to develop a standardized model system to investigate endodontic irrigation techniques and assess the efficiency of different activation methods on the removal of hard tissue debris in complex root canal systems. Mesial roots of mandibular molars were firstly scanned by micro-computed tomography (µCT) and allocated to three groups of irrigant activation: sonic activation (EDDY, VDW, Munich, Germany), laser activation (AutoSWEEPS, FOTONA, Ljubljana, Slovenia) and conventional needle irrigation (control). Roots were fixed in individual 3D-printed holders to facilitate root canal enlargement under constant irrigation with NaOCl (5%). To enable standardized quantification of remaining debris, BaSO<sub>4</sub>-enriched dentine powder was compacted into the canals, followed by another µCT-scan. The final irrigation was performed using 17% ethylenediaminetetraacetic acid (EDTA) and 5% sodium hypochlorite (NaOCl) with the respective activation method, and the volume of remaining artificial debris was quantified after a final µCT-scan. The newly developed model system allowed for reliable, reproducible and standardized assessment of irrigation methods. Activation of the irrigant proved to be significantly more effective than conventional needle irrigation regarding the removal of debris, which persisted particularly in the apical third of the root canal in the control group. The efficiency of irrigation was significantly enhanced with laser- and sonic-based activation, especially in the apical third. |
topic |
disinfection sodium hypochlorite ethylenediaminetetraacetic acid lasers computed tomography |
url |
https://www.mdpi.com/2076-3417/11/16/7331 |
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