Year : 2024

Volume : Volume 15

Issue : Issue 6

Address for correspondence :
M. Sakthivel
sakthivelmunusamy95@gmail.com

Abstract

Background: Thorough shaping and disinfecting followed by three dimensional obturation of the whole root canal system is the key for successful endodontic treatment in maxillary molar teeth. Failure to treat second mesiobuccal (MB) canal is one of the most important reason for persistent or reinfection in maxillary molar teeth. Hence, in our study, we aimed to evaluate the incidence of second MB canal (MB2) and prediction of MB2 canal based on other canals orifice distribution with the help of cone beam computed tomography (CBCT). Materials and Methods: Total of 180 patients CBCT among which 300 maxillary first molars were included for this study. The inter-orifice distances between MB, distobuccal (DB) and P canals orifice were measured. Mesiobuccal-distobuccal-palatal canals orifice (MDP) angle was also measured. This inter-orifice distances and MDP angle were measured. Then MB-palatal canal (MB-P) and DB-palatal canal (DB-P) ratio was calculated. MB2 presence has been noted down. Then the presence of MB2 canals and the above factors are correlated. Results: The presence of MB2 canal was found in 228 teeth (76%). The incidence of MB2 is increased as the values increase in MB-P distance (>5.5 mm), MB-P and DB-P ratio (>1.2) and MDP angle (>92°). Conclusion: MB2 presence and these three factors were in positive correlation, which would help in clinical practice to find out the MB2 canals efficiently with the help of actual MB, DB, and palatal canals orifice distribution at the pulpal floor while performing root canal treatment in maxillary first molars for successful endodontic treatment.