Outcome of Endodontic Treatments Made by Postgraduate Students in the Dental Clinic of Bretonneau Hospital
Figure 4
Case classified as failure. (a) Preoperative X-ray of the 46, painful, with an acute apical abcess. The previous endodontic treatment was performed 24 months ago. Note the apical radiolucency (). (b) Periapical X-ray control immediately after the retreatment. Note the copper ring used as preendodontic reconstitution. (c) Follow-up for 4 years: tooth was classified as “failure”: the apical radiolucency is always present and the tooth is symptomatic at the percussion test. The prosthodontics treatment and the coronal seal are questionable.