Fig. 3From: Prevalence and location of the secondary mesiobuccal canal in 1,100 maxillary molars using cone beam computed tomographyCross-sectional CBCT image of left maxillary first and second molar with a clearly distinguished MB2 canal (yellow arrows). The red arrows denote the mesiobuccal root in the maxillary first molar and the purple arrows denote the mesiobuccal root in the maxillary second molarBack to article page