Teeth with diseased or injured nerves would traditionally be removed, but today we can save the tooth through a special dental procedure called a root canal.
Inside each tooth is the pulp which is the living part of the tooth, that runs like a thread down through the root. When the pulp is diseased or injured, the pulp tissue dies. If you don't remove it, your tooth gets infected and you could lose it. A root canal is when your dentist removes the pulp, and then the root canal is cleaned and sealed off to protect it. Then your dentist places a crown over the tooth to help make it stronger.
Most of the time, a root canal is a relatively simple procedure with little or no discomfort involving one to three visits. Best of all, it can save your tooth and your smile!