Clinical significance of computed tomography assessment for third molar surgery

Figure 2 Root darkening and inferior alveolar canal shape. A: Darkening of the root is observed in this orthopantomography image. A black band is visible (white arrows) at the root apex site; B: A cross-sectional multi-detector computed tomography image indicates alterations (dumbbell shape) to the inferior alveolar canal shape and a loss of the lingual cortex of the mandibular bone.