Tooth pain can be uncomfortable — and sometimes unbearable. But how do you know if it’s just a cavity or something more serious like the need for a root canal treatment?
In this guide, we’ll explain what a root canal is, the common warning signs, and what you can expect during the procedure.
What Is a Root Canal?
A root canal is a dental procedure used to treat infection or damage inside the tooth. Inside every tooth is a soft tissue called the pulp, which contains nerves and blood vessels. When this pulp becomes infected or inflamed due to decay, cracks, or injury, a root canal is needed to save the tooth.
The procedure removes the infected pulp, cleans the inside of the tooth, and seals it to prevent further infection.
Signs You May Need a Root Canal
Here are the most common symptoms to watch for:
1. Persistent Tooth Pain
Pain that doesn’t go away — especially when chewing or applying pressure — can indicate infection deep inside the tooth.
2. Sensitivity to Hot or Cold
If your tooth remains sensitive even after the hot or cold stimulus is removed, it may signal nerve damage.
3. Swollen or Tender Gums
Swelling around a specific tooth may indicate infection spreading to surrounding tissues.
4. Darkening of the Tooth
A tooth that turns gray or dark may have nerve damage inside.
5. Pimple on the Gums (Dental Abscess)
A small bump near the painful tooth could mean pus is draining from an infection.

