Endodontic surgery helps patients with a variety of conditions. If you feel pain but no problem appears on your X-ray, an endodontist can examine your tooth. If you have too much calcium deposits that block your root, then endodontic surgery can fix the problem. Sometimes, you can have a root canal and still get an infection. Endodontic surgery can save the tooth from extraction. Damaged root surfaces and surrounding bone can also be treated with an endodontic procedure.