Nanoleakage of apical sealing using a calcium silicate-based sealer according to canal drying methods
- Author:
Yoon-Joo LEE
1
;
Kyung-Mo CHO
;
Se-Hee PARK
;
Yoon LEE
;
Jin-Woo KIM
Author Information
- Publication Type:Research Article
- From:Restorative Dentistry & Endodontics 2024;49(2):e20-
- CountryRepublic of Korea
- Language:English
-
Abstract:
Objectives:This study investigated the nanoleakage of root canal obturations using calcium silicate-based sealer according to different drying methods.
Materials and Methods:Fifty-two extracted mandibular premolars with a single root canal and straight root were selected for this study. After canal preparation with a nickel-titanium rotary file system, the specimens were randomly divided into 4 groups according to canal drying methods (1: complete drying, 2: blot drying/distilled water, 3: blot drying/NaOCl, 4:aspiration only). The root canals were obturated using a single-cone filling technique with a calcium silicate–based sealer. Nanoleakage was evaluated using a nanoflow device after 24 hours, 1 week, and 1 month. Data were collected twice per second at the nanoscale and measured in nanoliters per second. Data were statistically analyzed using the Kruskal-Wallis and Mann–Whitney U-tests (p < 0.05).
Results:The mean flow rate measured after 24 hours showed the highest value among the time periods in all groups. However, the difference in the flow rate between 1 week and 1 month was not significant. The mean flow rate of the complete drying group was the highest at all time points. After 1 month, the mean flow rate in the blot drying group and the aspiration group was not significantly different.
Conclusions:Within the limitations of this study, the canal drying method had a significant effect on leakage and sealing ability in root canal obturations using a calcium silicate-based sealer. Thus, a proper drying procedure is critical in endodontic treatment.
