Shima Bijari - Assistant Professor, Department of Endodontics, Faculty of Dentistry and Dental Research Center, Birjand University of Medical Sciences, Birjand, Iran
Sediqe Ebrahimipour - Assistant Professor, Department of Endodontics, Faculty of Dentistry and Dental Research Center, Birjand University of Medical Sciences, Birjand, Iran

The occurrence of external cervical root resorption (ECRR) is rare. Herein, we report a case of extensive ECRR in the coronal third of the distal root of a mandibular right molar with food impaction and periapical radiolucency. The distal root was perforated and damaged due to delayed treatment. The resorptive defect was debrided, and the defect was restored with conventionally setting restorative glass-ionomer cement. Postoperative follow-up revealed complete healing.

External Cervical Resorption, Endodontic Retreatment, Glass-Ionomer Cement, Surgery