Background

Obturation is a crucial step in dentistry, involving the filling and sealing of a prepared root canal with sealer and core material to prevent bacterial invasion and ensure successful treatment. This study employed scanning electron microscopy to compare the effectiveness of 3 obturation techniques–single-cone technique (SCT), cold lateral compaction technique (CLCT), and continuous-wave technique (CWT)–in sealing dentin to recently introduced root canal bioceramic sealer in 30 extracted mandibular second premolars. The goal was to determine the optimal technique for minimizing gaps at the sealer-dentin interface.