Restorative Dentistry and Endodontics

  • 제49권2호
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  • Pages.20.1-20.13
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  • 2024
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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Nanoleakage of apical sealing using a calcium silicate-based sealer according to canal drying methods

  • Yoon-Joo Lee (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Kyung-Mo Cho (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Se-Hee Park (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Yoon Lee (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Jin-Woo Kim (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University)
  • 투고 : 2023.11.29
  • 심사 : 2024.03.03
  • 발행 : 2024.05.31
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초록

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.

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과제정보

The author thanks Prof. Bo-Mi Shin for her assistance in statistical analysis.

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