A root canal procedure starts with numbing the affected area to ensure comfort. The dentist then creates an opening in the tooth to access the infected or damaged pulp inside. Using specialized tools, the pulp is carefully removed, and the inside of the tooth is cleaned and disinfected. Once cleaned, the space is filled with a biocompatible material and sealed to prevent future infection. Finally, a crown or filling is placed on the tooth to restore its function and appearance, ensuring the tooth can function normally.