Fig. 1. Root resorption images. A. External root resorption of the second molar on panoramic and CBCT images. B. Superimposition of the third molar crown onto the root of the second molar, and a CBCT image showing external root resorption of the distocervical area of the second molar (white arrow). C. Superimposition between the roots of the third molar and second molar can also induce external root resorption.