In some cases it may be necessary to remove the infected root tips or apex and the nearby tissue. This is known as a apical surgery, an apicoectomy, or as endodontic surgery. This is a safe and minor surgery.
The area around the apex of the tooth that is infected is cleaned, and the tip of the root is resected and sealed.
Why you may need Endodontic Surgery:
You have pain in a tooth treated with a root canal.
You have calcium deposits making your canals to narrow to treat.