Figure 2.

Cross-sectional CBCT image of mandibular first premolar with a clearly distinguished C-shaped configuration. Image A illustrates canal shape from the coronal aspect. White arrow denotes root canal in the sagittal plane (B), and the orange arrow denotes the cross-sectional image (C).

Yu et al. BMC Medical Imaging 2012 12:18   doi:10.1186/1471-2342-12-18
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