Where is the MB-2 canal in upper first molars?

The MB-2 canal in upper first molars is located in the mesiobuccal root. It is typically found in the mesial portion of the root, often situated slightly palatally to the main mesiobuccal canal. The presence of the MB-2 canal is variable, but it is important for endodontic treatment, as it can significantly affect the success of root canal therapy. Identifying and properly managing this canal can enhance the overall outcome of the procedure.