Fig. 2From: Treatment of peri-invagination lesion and vitality preservation in an immature type III dens invaginatus: a case reportCone-beam computed tomography images of the dens invaginatus (#31: DI). (a) Sagittal and (b) coronal views showing the DI with the periapical lesion, surrounded by a radiopaque enamel border in the crown. Axial sections from (c, d, and e) coronal to apical and (f, g and h) coronal sections showing the type III DI extending through the root and communicating through another foramen associated with a periapical radiolucencyBack to article page