During this retreatment, the tooth will be opened again and the filling material that was previously placed in the canals will be removed. The tooth will be carefully examined for missing canals and for any new infection and later thoroughly cleaned and shaped and will be filled again with a new filling material and a new crown will be placed.

If the infection persists in the bony area after root canal treatment, apicectomy can be carried out to save the tooth under appropriate conditions. During apicectomy, the root end of the tooth will be resected and the tip of the root will be sealed with filling and the surgical area will be sutured. The bone around the root will be healed in a few months.