A COMPARISON OF SEALING ABILITY IN ROOT CANAL OBTURATED WITH SINGLE-CONE TECHNIQUE BETWEEN ENDOSEQUENCE BC SEALER AND NISHIKA CANAL SEALER BG MULTI AFTER POST SPACE PREPARATION

Abstract

The objective of this study was to compare the sealing ability of root canals obturated using the single-cone technique between EndoSequence BC sealer and Nishika Canal Sealer BG after post space preparation. 55 extracted human mandibular second premolars were decoronated to a root length of 11 mm. All roots were prepared with WaveOne Gold (45/05) and obturated with the single-cone technique using EndoSequence BC Sealer (E) and Nishika Canal Sealer BG Multi (N), with 20 teeth in each group, negative (En and Ni) and positive control groups, with 10 and 5 teeth in each group, respectively. The post space preparations were performed, leaving 4 mm of gutta-percha at the apical portion. Bacterial leakage was evaluated using Enterococcus faecalis (DMST 43137) over a 60-day period. Kaplan-Meier survival analysis demonstrated a tendency toward earlier leakage in the EndoSequence BC Sealer group. However, comparisons using the log-rank test and Cox proportional hazards regression revealed no statistically significant difference in leakage between the two groups (p = 0.156). Within the limitations of this study, EndoSequence BC Sealer and Nishika Canal Sealer BG Multi demonstrated comparable sealing ability when 4 mm of root canal filling material was retained after post space preparation in canals obturated using the single-cone technique.

Keywords: EndoSequence BC Sealer, Nishika Canal Sealer BG Multi, Bacterial Leakage of Enterococcus faecalis, Bioactive Glass Sealer