Article information
Year 2020 Volume 70 Issue 4 Page 297-304
Title:
Influence of Curved Root Canal on Retreatment Efficacy of Bioceramic Sealer
Keyword(s):
Retreatment, Curved root canal, MicroCT, Bioceramic sealer
Abstract:
This study evaluated the influence of a curved root canal on the retreatment efficacy of root canals sealed with a bioceramic sealer. Thirty mandibular molars were divided into two groups of severely-curved canals and slightly-curved canals. Root canals were filled with BioRoot RCS and matched-taper single-cone technique. Two weeks after root canal obturation, retreatment was performed with WaveOne Gold Primary with passive ultrasonic irrigation. The retreatment efficacy was evaluated by regaining canal patency, retreatment time, and percentage of residual filling material. Regaining canal patency was compared with the Chi-square test. Retreatment time and percentage of residual filling material were compared using independent sample t-test at the 0.05 confidence level. The regaining canal patency, retreatment time and percentage of residual filling material were not significantly different between severely-curved canal group and slightly-curved canal group. Severely-curved canal filled with BioRoot RCS showed no significant difference in retreatment efficacy from slightly-curved canal filled with BioRoot RCS.