Fig. 5From: The morphology of permanent maxillary first molars evaluated by cone-beam computed tomography among a Yemeni populationCanal configurations observed in the DB root; A Vertucci Type I (1-1); B Vertucci Type II (2-1); C Vertucci Type III (1-2-1); D Vertucci Type V (1-2); E Vertucci Type VII (1-2-1-2)Back to article page