In the dental specialty of endodontics, periradicular surgery is surgery to the external root surface. Examples of periradicular surgery include apicoectomy, root resection, repair of root perforation or resorption defects, removal of broken fragments of the tooth or a filling material, and exploratory surgery to look for root fractures.


Source: https://en.wikipedia.org/wiki/Periradicular_surgeryhttps://en.wikipedia.org/wiki/Periradicular_surgery