A root canal procedure requires one or more appointments. An endodontist can perform it. A rubber dam (a sheet of rubber) will be placed around the tooth while it is numb to keep it dry and free of saliva. Your doctor will make an access opening on top of the tooth and insert a series of root canal files, one at a time, into it, removing the pulp, nerve tissue, and bacteria. If there is tooth decay, it will be removed with special dental instruments as well.
After thoroughly cleaning the tooth, it will be sealed with either a permanent or temporary filling if additional appointments are required. At the next appointment, usually, a week later, your specialist will fill the roots and the inside cavity of the tooth and seal it with special dental materials. Your doctor will place a filling to cover the opening on top of the tooth. Furthermore, all teeth that have had root canal therapy should have a crown (cap) placed. The crown will protect the tooth, keep it from breaking, and restore its full function.
After treatment, your tooth may still be sensitive, but this will fade as the inflammation subsides and the tooth heals. Following each appointment, your doctor will give you care instructions. Regular dental visits and good oral hygiene practices will extend the life of your root canal treatment.