Apicetomy

The white shiny part of each tooth is called the crown. The part that fits into its socket in your jaw is called the root. The deepest part of the root is called the apex. The apex of your tooth has an infection with germs in it. The infection may have ended up forming a cyst that possibly has pus in it.

A cyst is a little pocket with some liquid in it. It is about half an inch (1.2cm) across, in the jaw bone, near the apex of the tooth. This is called a dental cyst.

The cyst and infection is cleaned out through a small opening in the gum and bone. The opening is then closed up. This operation is called an apicectomy.