What is a root canal?

Answer 1

root canal is the canal in the tooth which has the nerves & blood vessels supplying the tooth.
A root cannal treatment is removing the dead or infected nerve & blood vessels & filling it with some cements, so that you can preserve the tooth ,insteard of removing it.

Answer 2

Teeth have roots, and for whatever reason, the roots die. This is when you need a root canal. The dentist removes the dead root out of the canal it is in. The pain can come when the root is not completely dead. Then when the dentist probes the canal and hits a live nerve, pain happens. The dead root needs to be removed to prevent infection.

Answer 3

A ROOT CANAL OTHERWISE KNOWN AS ENDODONTIC TREATMENT INVOLVES REMOVING ALL THE CONTENTS INSIDE A ROOT AND REPLACING IT WITH AN INERT MATERIAL, EITHER A CEMENT OR A MATERIAL CALLED GUTTA PERCHA.