Endodontic or apical surgery can be used to remove persistent infections, locate small fractures or hidden canals undetected during the initial treatment. Surgery may also be needed to remove calcium deposits in root canals, or to treat damaged root surfaces or the surrounding bone of the tooth. Advanced technologies like digital imaging and operating microscopes allow these procedures to be performed quickly, comfortably and successfully. There are many surgical procedures that can be performed to save a tooth. The most common is called an apicoectomy, or root-end resection, which is performed when inflammation or infection persists in the bony area around the end of your tooth after a root canal procedure.