Endodontic Retreatment with removal of broken Peeso reamer on Tooth 4.6 with Symptomatic Apical Periodontitis

The patient presented to the clinic due to painful symptoms in the area of tooth 4.6, with a diagnosis of previously treated tooth complicated by symptomatic apical periodontitis. She reported pain during mastication localized to tooth 4.6, as well as an unpleasant odor when using the oral irrigator, particularly in the embrasure between teeth 4.6 and 4.7. The initial radiograph revealed a poorly adapted single-unit prosthetic restoration in the distal region, which contributes to hygiene difficulties and food retention. The endodontic treatment had been performed 7 years prior. A periapical lesion was observed at the level of the mesial root. For more accurate assessment, a preoperative endodontic CBCT scan was recommended after removal of the prosthetic restoration and orthodontic appliance…