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Effect of Electrical Heat Carrier Temperature on Bacterial Leakage of Endodontically Treated Teeth Using a Bioceramic Sealer Publisher Pubmed



Nabavi MA1 ; Kalantar Motamedi MR2 ; Fattahi P3 ; Khazaei S4
Authors
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Authors Affiliations
  1. 1. School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran
  2. 2. Dental Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Student Research Centre, Qazvin University of Medical Sciences, Qazvin, Iran
  4. 4. Department of Endodontics, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran

Source: Clinical and Experimental Dental Research Published:2025


Abstract

Objectives: The aim of this study is to investigate the effect of electrical heat carrier temperature on bacterial leakage of root canals obturated with the continuous wave of condensation (CWC) technique and a bioceramic sealer. Methods: This ex vivo experimental study was conducted on 92 extracted single-rooted teeth. The teeth were subjected to endodontic treatment and obturated with the Endoseal MTA bioceramic sealer by the CWC technique using two different temperature settings of the electrical heat carrier: 120°C (group G120, n = 41) and 200°C (group G200, n = 41). A positive and a negative control group were also considered (n = 5 each). Bacterial leakage was assessed over a 40-day period using a bacterial leakage model. The incidence of bacterial leakage was compared between the experimental groups using the log-rank test. The significance level was set at 0.05. Results: The median survival rate was 39.0 (25.0) days in the G120 group and 34.0 (25.0) days in the G200 group. Despite a slightly higher survival rate in the G120 group, the difference between the two experimental groups was not statistically significant (p = 0.612). Conclusion: The tested temperatures of the electrical heat carrier (120°C and 200°C) did not have a significant effect on bacterial leakage of root canals obturated by the CWC technique and the Endoseal MTA bioceramic sealer. © 2025 The Author(s). Clinical and Experimental Dental Research published by John Wiley & Sons Ltd.
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