If your tooth broke off and there is just the root left, how does the dentist remove the root?

Surgery: If the tooth is broken off below the gum line and bone level, then usually surgery is needed. The surgeon usually makes an incision with a scapel to expose the site to improve access and visual field. Then instruments can be used to help move or a surgical bur may be used to remove or section tooth to gain access and remove the tooth. The site is sutured back and recovery is usually fairly quick.

Surgically: The dental surgeon makes an incision through the gums and uses specialized instruments to remove the offending root tip. If the tip continues to break, he may have to use specialized drills to carefully remove bone to allow the tip to come out.

Treatment plan: The dentist will carefully remove the remaining root structure. You need to have a treatment plan, How do you intend to replace this tooth? Based upon this, the dentist can plan for an implant, bridge if warranted or a partial denture. You also have the option of doing nothing. It is advisable to replace the tooth, so the rest on the dentition will be minimally affected.

Depends: Depends on how much is exposed, how brittle the tooth is, and the different skill level of each surgeon. The patients ability to work with the doctor is also key.