Mesiobuccal2 (MB2) canal evaluation for maxillary first molar in Indian sub-population

The success of endodontic treatment relies on the knowledge of root canal anatomy and the ability to access, clean and fill the entire canal system. Therefore, it is of interest to evaluate the prevalence, position and canal arrangement of the MB2 (mesiobuccal 2) canal in 170 maxillary first molars. The MB2 canal was identified in 59.41% of the teeth, with Vertucci Type II arrangement being the most common (69.3%), followed by Type IV (30.7%). The average inter-canal distance between MB1 and MB2 was 1.84 ± 0.41 mm. Spatial analysis showed that the MB2 canal lies in close proximity to MB1, with no significant association between canal configuration and gender (p = 0.583). Thus, we show CBCT's value in detecting complex canal morphology and the need for population-based studies in diverse populations like India to improve endodontic predictability.