Surgical replacement of huge rate of root end amalgam filling with mineral trioxide aggregate angelus: A case report

Background and aim: surgical endodontics may sometimes fail despite using root-end filling materials (refms). in this case report, a symptomatic right maxillary first premolar underwent periradicular surgery (ps) for replacing huge rate of amalgam with mineral trioxide aggregate (mta). case report: a thirty-year-old healthy woman attended with the chief complaint of recurrent swelling and abscess in the periradicular region of maxillary premolar tooth and sensitivity to percussion. she had a history of ps in the past year. periapical radiographic images showed a huge rate of amalgam used as refm. the ps was performed again and the amalgam was replaced with mta. postoperative clinical and radiographic evaluation after 2 years showed no sign of abscess and no sensitivity to percussion and periapical pathosis. conclusion: in this case report, replacing amalgam with mta provided reasonable outcome up to 2 years after the treatment.