The Chairside Instructor 30 Apicoectomy Sometimes the infection does not go away even after root canal therapy. In these cases, an apicoectomy can be done to remove diseased tissue from the bony area around the root of your tooth. A cut is made to allow access to the base of the tooth. Any diseased and inflamed tissue is removed. The tip of the tooth root is also removed. A small filling may be placed in the remaining tip of the tooth to seal the root canal. The gum tissue is stitched back into place. A crown is placed to protect the tooth as healing occurs, new bone grows in and fills the space. Tooth with bony defect is given root canal treatment. The diseased crown and root are sectioned off and removed. A fixed bridge is placed to stabilize the treated tooth. As healing occurs, bone grows in. Root Hemisection and Restoration Crown Filling Abcess Endodontic Surgery Decay, Cavities and Restorations