Effizienz der Gewebeentfernung im Wurzelkanalsystem nach laserbasierter photoakustischer Sp��lung
| Autor: | Bartschat, Patrick Joachim |
|---|---|
| Přispěvatelé: | Braun, Andreas, Wolfart, Stefan |
| Jazyk: | němčina |
| Rok vydání: | 2021 |
| Předmět: |
Histologie
Endodontie root canal laserbasierte photoakustische Spülung chemomechanische Aufbereitung endodontic treatment laser activated irrigation smear layer Wurzelkanalbehandlung Wurzelkanalaufbereitung laserbasierte photoakustische Sp��lung PIPS histology root canal SWEEPS endodontics cavitation effects root canal therapy histology ddc:610 |
| Zdroj: | Aachen : RWTH Aachen University 1 Online-Ressource : Illustrationen, Diagramme (2021). doi:10.18154/RWTH-2021-10689 = Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2021 |
| DOI: | 10.18154/rwth-2021-10689 |
| Popis: | Dissertation, Rheinisch-Westf��lische Technische Hochschule Aachen, 2021; Aachen : RWTH Aachen University 1 Online-Ressource : Illustrationen, Diagramme (2021). = Dissertation, Rheinisch-Westf��lische Technische Hochschule Aachen, 2021 BACKGROUND: Modern dental procedures are becoming more and more efficient. Aiming for a better tooth preservation, traditional endodontic treatments are being questioned and compared to new dental technologies. In recent years, a major focus has been layed on the root canal preparation. A variety of studies on new preparation techniques, concentrationg on an improved root canal debridement have been conducted. One of these new techniques, the laser-activated irrigation technique , was examined and discussed in the present study. AIM: The aim of the present study was to compare the efficacy of laser-activated irrigation with conventional irrigation method in root canal debridement. METHOD: The root canals of sixty extracted, single-rooted, human teeth were chemo-mechanically prepared using rotary files, up to size 30.09, and sodium hypochlorite (3% NaOCl). The teeth were divided into four groups of fifteen teeth each: (1) Er:YAG-Laser with lasertip located in the root canal (LAI), (2) Er:YAG-Laser with lasertip in the orifice using SWEEPS��-Mode (SWEEPS), (3) conventional irrigation with sodium hypochlorite (MI), and (4) control group without further treatment (C). The samples were prepared for histological investigation. Horizontal sections were cut 1mm, 3mm and 5mm away from the anatomical apex, followed by microscopic examination. The histology image analysis was done via computer software. The results were statistically evaluated using Mann-Whitney and Wilcoxon-test. RESULTS: Laser-activated irrigation removed more debris than conventional irrigation (LAI p0,05). The overall comparison showed a statistically-significant difference between both lasersystems (LAI to SWEEPS p0,05). At 3mm cutting height, the conventional irrigation showed significantly better results than SWEEPS�� (MI to SWEEPS p0,05). The worst outcomes among all tested methods were found in the apical region. None of the methods rendered the canal systems debris free. CONCLUSION: Laser-activated irrigation leads to superior canal cleanliness. Chemo-mechanical preparation of single-rooted teeth can be further improved by using LAI-lasertips. The conventional irrigation method had its best outcome at the location of the needle tip, therefore an apical insertion depth can be recommended. It can be concluded that the use of laser-activated irrigation advantageously affects endodontic treatments. Published by RWTH Aachen University, Aachen |
| Databáze: | OpenAIRE |
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