MB3 canal is a rare anatomical variation present in maxillary first and second molars. Its presence can be associated to a complex internal anatomy of the MB root which includes the presence of isthmuses and multiple accessory canals and foramina at the …

2020年5月7日 · Objectives To assess the internal and external morphologies of the mesiobuccal (MB) root of maxillary molars presenting a third root canal (MB3), using micro-computed tomography (micro-CT). Material and methods Two-hundred and sixty-five extracted maxillary first and second molars with different root configurations were imaged in a micro-CT scanner at 19.6-μm pixel size. Sixteen teeth ...

2024年4月27日 · Although the maxillary second molar typically features three canals, the occurrence of five canals, particularly a mesial buccal third canal (MB3) canal in the mesiobuccal root, is extremely rare. This case report documents such a rare occurrence in a maxillary second molar with five canals.

2020年11月1日 · MB3 canal was observed in 10 maxillary first molars and 6 maxillary second molars (n = 16). Minimal dentine thickness related to the MB3 canal at the coronal third was smaller than that of the MB1 ...

MB3 canal can be defined as a third main root canal located in between MB1 and MB2 main canals of the MB root of maxillary molars. Literature regarding morpho-logical description of MB3 canal is scarce and most of the information comes as a clinical report or an incidental find-ing of laboratorial studies, but not as the main topic of the research.

As a result, the MB3 canal could be observed in differ- ent levels of the root (Table 1; Figs. 1, 2, 3). At the pulp Discussion A thorough debridement and disinfection of the root canal system is the most important step during root canal therapy.

After confirming two canal orifices mesially, one distally and one palatally, a hemorrhagic point was noted beneath the MB2 canal, confirming MB3. Then, #6 K-file (Dentsply Maillefer, Ballaigues, Switzerland) was inserted in the MB3 canal, and the canal was cleaned up to …

The MB3 canal was always oriented distally from the clinical projection, and buccally from the proximal aspect. Conclusion: The mesiobuccal roots of the first maxillary molars showed multiple canals in 96%, with dominant Vertucci type II and IV of configuration.

MB3 canal was observed in 10 maxillary first molars and 6 maxillary second molars (n = 16). Minimal dentine thickness related to the MB3 canal at the coronal third was smaller than that of the MB1 ...

2019年3月13日 · The MB3 canal was observed in 17% and 13% of the maxillary first and second molars, respectively. Past studies showed that MB3 was present in the mesiobuccal root of maxillary first and second molars in small percentages, in the ranges of 0.5-12.5% [5, 29] and 0.6-4% [7, 30], respectively.