Question 1

Is my tooth dead after a root canal?

Accepted Answer

Only the pulp — the nerve and blood vessels inside the tooth — is removed. The tooth itself stays anchored by a living periodontal ligament, holds firm, and works normally. It no longer senses hot or cold, but it is not 'dead' in any way that harms your health.

Question 2

Does a root canal remove the nerve?

Accepted Answer

Yes. A root canal removes the inflamed or infected nerve tissue (the pulp) from inside the tooth and seals the space. Removing that nerve is what ends the pain and lets you keep the natural tooth instead of extracting it.

Question 3

Will the tooth still feel normal when I chew?

Accepted Answer

For most people, yes. Your sense of bite pressure comes from the periodontal ligament around the root, which a root canal doesn't touch. You lose only hot and cold sensitivity, which was usually the source of the original pain.

Question 4

Can a root-canal-treated tooth get infected again?

Accepted Answer

It can, if bacteria re-enter — most often through a delayed crown that lets the tooth fracture, a new cavity, or an untreated extra canal. Most such cases can be fixed with retreatment or minor surgery rather than extraction.

Question 5

How long will the tooth last after a root canal?

Accepted Answer

Often decades — frequently a lifetime. Studies show the large majority of treated teeth are still functioning 8–10 years later. Getting a crown promptly on a back tooth is the biggest factor in long-term survival.

Does a Root Canal Kill the Tooth? · The 'Dead Tooth' Myth Explained · Sunnyvale Endodontist