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Fig. 4 | BMC Medical Imaging

Fig. 4

From: Prevalence and location of the secondary mesiobuccal canal in 1,100 maxillary molars using cone beam computed tomography

Fig. 4

Axial view of left maxillary first molar. PMB1 (center of mesiobuccal canal), PMB2 (center MB2 canal), PP (center palatal canal). Straight lines were projected, joining the different points: PMB1-PP line and PMB1-PMB2 line. A third line was drawn, PMB2-PT, corresponding to a perpendicular line between PMB2 and the PMB1-PP line (PT point). The distance in the lines drawn between the points was measured in millimeters

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