When a tooth becomes infected or damaged, root canal treatment is often the only way to save your tooth and repair the damage. Infection spreads to the bone and tissues and an abscess forms at the roots.
The treatment involves clearing the infection after numbing the tooth by a cleaning and disinfecting process of the roots. The root canals are then filled with an inert material and sealed. A crown has to be placed following the treatment to protect the tooth from further damage.