“Can a tooth fall out after a root canal?”

The answer is maybe. The answer depends on the condition of the surrounding bone on the treated tooth. Good bone around a root canal generally means that the tooth will have a good prognosis. Bone loss around a root canal treated tooth means a good chance of it being lost. Make sure you have a good foundation before having the root canal being completed.

If a tooth has been treated with a root canal and becomes loose, it needs to be checked out. If the tissue at the end of the root didn't heal, a follow-up treatment may still save it. If the root has split, the tooth should be removed.

No, a root canal only removes the nerve of the tooth, not the roots.

Short answer, YES. Root canal therapy treats the inside of the root, or the root canal, to eliminate the source of infection that spreads to the outside of the tooth. Root canal therapy does not affect the little ligaments (think teeny tiny rubber bands) that hold the tooth in the bone. If there is enough bone loss either from gum disease or from the infection that came from the inside of the canal, the ligaments may not be able to recover and could come out. Then, of course, you could knock it out. It is not held in any stronger than before the therapy, however, if all goes well, it should be as good as it was before it got infected and stay in place for many years.

The answer is generally NO. A tooth that has had Endodontic treatment should not just "fall" out. The tooth in question should be found to be periodontally sound before a root canal is begun. The tooth should also be restorable, meaning having sufficient tooth structure or the ability to be built up or have a post and core placed to restore the tooth back to function.

Sounds more complicated. Teeth don't usually fall out, root canaled or not.There is another problem going on. Try to find out what that is.