Figure 5.
A. Apical root resorption. The tooth has previously undergone endodontic treatment, but the root canals are insufficiently filled, which leads to periapical inflammation followed by root resorption. B. Apical replacement resorption following orthodontic treatment. In this case, resorption was caused by the incorrect application of orthodontic force. 90 C. Tooth root internal resorption. CBCT is preferable to confirm root perforation. 9 D. External root resorption in the lower left canine. The patient reports a jaw trauma he experienced many years ago, which caused the loss of the lower-left lateral incisor. OPG reveals the presence of generalized periodontitis.