Root Canal Treatment is essential when the soft tissue inside the tooth (the pulp) becomes infected or inflamed due to deep decay or injury. During the procedure, the dentist removes the infected pulp, cleans the root canals, and fills them to prevent further infection. RCT is a highly effective way to save a tooth that would otherwise need extraction. It relieves pain and restores functionality. A crown is often placed on the tooth afterward for protection and longevity.