Comparison of Root Filling Quality of Two Types of Single Cone-Based Canal Filling Methods in Complex Root Canal Anatomies: The Ultrasonic Vibration and Thermo-Hydrodynamic Obturation versus Single-Cone Technique

Abstract

This study aimed to assess the effectiveness of ultrasonic vibration and thermo-hydrodynamic obturation (VibraTHO) using two types of root canal sealers, in comparison to the single-cone (SC) technique and a calcium silicate-based root canal sealer in complex root canal anatomies. Thirty single-rooted human maxillary premolars with two canals that had a complex root canal anatomy of transverse anastomoses or ramifications were prepared and assigned to the following three experimental groups, according to the filling method: SE group, SC technique with Endoseal TCS; VE group, VibraTHO with Endoseal TCS; and VG group, VibraTHO with GuttaFlow 2. Each tooth was scanned using micro-computed tomography, and the volume percentages of the filling material were calculated. The analysis of variance was used to analyze the statistical differences between the three groups (p < 0.05). The mean volume of the filling material was higher in the VG and VE groups than that in the SE group (p < 0.05) along the apical to middle-to-coronal thirds, and significant differences were observed between each root canal area (p < 0.05), with the only exception being at the apical thirds between the VE and SE groups. The VibraTHO technique using GuttaFlow 2 can be a more effective root canal filling method for anatomically complex root canal systems than the SC technique with Endoseal TCS. On the other hand, the VibraTHO technique using Endoseal TCS has a limited effect on improving the quality of the root filling at the apical portion of anatomically complex root canal systems, compared to the SC technique with Endoseal TCS.

Limits of Conventional Treatment of Odontogenic Cutaneous Sinus Tract: A Case Report

“…It incorporates indirect ultrasonic sealer activation and short-range warm vertical compaction of a single Gutta percha cone. This technique is almost as fast and user-friendly as the conventional single-cone technique and can be a more effective root canal filling method for anatomically complex root canal systems [22,23].…”

Premolares con tres conductos radiculares

“…Es menos sensible a las variaciones del operador, tiene un bajo costo y un tiempo de operación corto. Esta técnica utiliza un cono de gutapercha con un diámetro similar al último instrumento utilizado para dar forma al conducto radicular; sin embargo, demanda una mayor cantidad de sellador, por lo que la fluidez y otras propiedades fisicoquímicas del sellador juegan un papel fundamental en el éxito del tratamiento de conductos (16).…”

Application of discipline integration in the practical teaching of endodontic‒restorative sequential treatment

“…2d). The end of the obturation should reach the level of cemento-dentinal junction [20]. Temporary lling material was placed to seal the tooth after endodontic treatments.…”