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Debris and Smear Layer Removal in Curved Root Canals: A Comparative Study of Ultrasonic and Sonic Irrigant Activation Techniques.
Dent J (Basel)
February 2024
Department of Endodontology, The Goldschleger School of Dental Medicine, Tel Aviv University, P.O. Box 39040, Tel Aviv 6997801, Israel.
The aim of this study was to compare the cleaning efficacy of three irrigant activation devices with a control of non-activated syringe and needle irrigation in curved root canals. Sixty human curved roots were endodontically prepared and divided into four groups (n = 15) with similar root curvature distributions. Final irrigation using 4% NaOCl was performed with a syringe and needle (30-G) alone, or with Eddy sonic powered irrigation system (polymeric tip #0.
View Article and Find Full Text PDFEvaluation of machine-assisted irrigation on removal of intracanal biofilm and extrusion of sodium hypochlorite using a three-dimensionally printed root canal model.
J Oral Sci
July 2023
Department of Conservative Dentistry, School of Dentistry, Jeonbuk National University.
Purpose: This study aimed to compare the biofilm removal and apical extrusion of sodium hypochlorite (NaOCl) following machine-assisted irrigation using a three-dimensionally (3D) printed dentin-insert model.
Methods: Multispecies biofilms were formed in a 3D-printed curved root canal model with dentin insert. The model was then placed in a container that was filled with 0.
The efficacy of three passive ultrasonic irrigation systems on intracanal medicament removal in a novel standardised three-dimensionally printed model.
Aust Endod J
September 2023
Department of Conservative Dentistry, School of Dentistry, Jeonbuk National University, Jeonju, South Korea.
This study compared the efficacy of several passive ultrasonic irrigation (PUI) systems in removing intracanal medicament using 3-dimensionally printed root canal model assembled with dentin specimen. After the placement of the model in the agar container (37°C), the intracanal medicament was removed using three different PUI instruments including CK file, Irrisafe and Endosonic Blue. Then, the area coated by the medicament and the volumetric percentage of the remaining medicament was measured.
View Article and Find Full Text PDFA novel three-dimensionally printed model to assess biofilm removal by ultrasonically activated irrigation.
Int Endod J
October 2021
Department of Conservative Dentistry, School of Dentistry, Jeonbuk National University, Jeonju, Korea.
Aim: To apply an innovative three-dimensionally printed tooth model to investigate the efficacy of three ultrasonically activated irrigation (UAI) systems in removing multispecies biofilms from dentine samples.
Methodology: Three-dimensionally printed teeth with a curved root canal were fabricated with a standardized slot in the apical third of the root to achieve precision fit of human root dentine specimens. Multispecies biofilms including Enterococcus faecalis, Streptococcus mitis and Campylobacter rectus were developed in the root canal for 21 days.
Effect of precurving endosonic files on the amount of debris and smear layer remaining in curved root canals.
J Endod
December 1992
Department of Endodontics, College of Dentistry, University of Iowa, Iowa City.
Endosonic files are prone to constraint; this reduces their efficiency, particularly in the apical third and in curved root canals. Precurving the file may reduce constraint, thereby improving the file's ability to debride. This investigation was undertaken to compare both straight and precurved endosonic files as to debris and smear layer removal.
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