Evaluation of the Single-Tip Bioceramic Filling Procedure in Root Canal Treatment of Maxillary First Molars: A...

This study aimed to assess the clinical efficacy of the single-tip bioceramic filling method in treating the second mesiobuccal canal (MB2) of maxillary first molars. Ninety-four patients requiring MB2 root canal therapy were randomly allocated to either an experimental group (n = 47) or a control group (n = 47) between January 2023 and December 2024. The experimental group was treated using the single-tip bioceramic technique, whereas the control group received AH-Plus hot vertical compaction. The primary outcome measures included filling quality, procedure time, postoperative pain at 24 hours and 7 days, and clinical efficacy at 6 months. The experimental group demonstrated a significantly higher optimal filling rate (P < 0.05) and shorter mean procedure duration, with comparable clinical success between both groups at 6 months. Additionally, patients in the experimental group experienced lower postoperative discomfort within 24 hours (P < 0.001). Overall, the single-tip bioceramic filling technique achieved equivalent clinical outcomes with improved procedural efficiency and patient comfort compared with the conventional AH Plus vertical compaction method. This simplified technique may represent a safe, effective, and time-efficient approach for MB2 canal obturation in maxillary first molars.