In some cases, the tissue that is affected by an infection of the root canal is located in such a position that a traditional root canal won't be enough to treat the infection and save the tooth. An apicoectomy is then used to prevent reinfection and other problems.
In an apicoectomy, we remove the tip of your tooth's root (or its apex) where the infection may be hiding. The end of the root will then be sealed off with a filling. Because your root tips are so small, this procedure often requires the use of an operating microscope, which is why an apicoectomy may also be referred to as endodontic microsurgery.