18 August 2020 : Clinical Research
Root Anatomy and Root Canal Morphology of Maxillary Second Permanent Molars in a Chongqing Population: A Cone-Beam Computed Tomography Study
Yu Xia123CDEF, Xin Qiao123BC, Ya-jing Huang123CD, Yue-heng Li123AE*, Zhi Zhou123AGDOI: 10.12659/MSM.922794
Med Sci Monit 2020; 26:e922794
Figure 1 Schematic diagrams showing Vertucci’s classification of root canal morphology and canal configuration of permanent second molars of the upper jaw with fused roots. (A) Classification of the anatomic morphology of canals. (B) Teeth with one (B1), two (B2), and three (B3) roots. (C) Fused root with one root canal (C1, coronal 1/3; C2, middle 1/3; and C3, apical 1/3). (D) Fused root with two root canals (D1, coronal 1/3; D2, middle 1/3; D3, apical 1/3). (E) Fused root with three root canals (E1, coronal 1/3; E2, middle 1/3; E3, apical 1/3). (F) Fused root with four root canals (F1, coronal 1/3; F2, middle 1/3; F3, apical 1/3).