When a tooth experiences a crack or severe decay, bacteria can invade the pulp tissue, resulting in an infection inside the tooth. This can cause inflammation of the tooth nerve or lead to an abscess, which is often accompanied by pain and swelling. If not addressed, the infection may spread, potentially causing tooth loss, damage to the jawbone, and even affecting your overall health, as it can enter the bloodstream and reach vital organs like the heart and brain.

Although not all teeth requiring root canal therapy will be painful, common signs such as intense toothaches, discomfort when chewing or biting, sensitivity to hot and cold temperatures, tooth discoloration, and gum swelling or tenderness may signal the need for this treatment.

Root canal therapy is designed to preserve the structure of a tooth when the nerve has become severely damaged, making extraction the only other option. The process involves removing the decay, extracting the damaged nerve, and filling and sealing the tooth's inner cavity with a durable material to protect the tooth's outer shell.

Typically, root canals are completed in a single appointment, and with diligent care such as regular brushing, flossing, and checkups, a restored tooth can remain in place for a lifetime. In cases of significant decay, a crown may be recommended to reinforce the tooth and prevent additional harm. In the end, undergoing root canal therapy when necessary can help save your tooth and preserve the integrity of your smile.