When most people hear the words “root canal,” they immediately think of severe tooth pain. While a persistent toothache is one of the most common signs that a root canal may be needed, it’s not the only one. In fact, some teeth that require root canal treatment cause little or no pain at all. The health of a tooth can’t always be determined by how it feels. That’s why regular dental checkups are so important.
Why Would a Tooth Need a Root Canal?
Inside every tooth is a soft tissue called the pulp, which contains nerves, blood vessels, and connective tissue. If the pulp becomes inflamed or infected due to deep decay, a crack, repeated dental procedures, or trauma, the tooth may need root canal therapy.
During a root canal, your dentist removes the damaged pulp, cleans and disinfects the inside of the tooth, and seals it to prevent future infection. In most cases, the tooth is then protected with a dental crown to restore its strength and function.
The goal is to save your natural tooth whenever possible.
Why Doesn’t Every Tooth Hurt?
Pain occurs when the nerves inside the tooth become irritated, but not every infection follows the same pattern. In some cases, the nerve may gradually die, causing the pain to lessen or disappear altogether. Although the discomfort is gone, the infection can remain and continue spreading into the surrounding bone.
Some patients also have a high pain tolerance or develop chronic infections that produce few noticeable symptoms. That’s why it’s possible to have a tooth that needs treatment even if it feels perfectly fine.
Other Signs You May Need a Root Canal
Even without pain, there are several warning signs that may indicate a problem inside your tooth, including:
- Prolonged sensitivity to hot or cold temperatures.
- A darkened or discolored tooth.
- Swollen or tender gums near a tooth.
- A small pimple-like bump on the gums.
- Pain when biting or chewing.
- A chipped or cracked tooth that exposes the pulp.
In some cases, your dentist may discover an infection during a routine examination or on a dental X-ray before you notice any symptoms at all.
If your dentist recommends a root canal, it’s because they’ve identified signs that the tooth can likely be saved through treatment. Addressing the problem early is often less complicated than waiting until severe pain develops. Remember, the absence of pain doesn’t always mean the absence of disease.
About the Author
Dr. Jennifer Gagnon has been a part of the dental world for a decade and counting. She earned her Doctor of Dental Medicine degree from Tufts University before completing a 1-year Advanced Education in General Dentistry residency through her alma mater and the Maine Medical Center. Dr. Gagnon stays dedicated to learning through taking comprehensive continuing education courses, participating in local study clubs, and maintaining memberships in professional organizations like the American Dental Association, the Maine Dental Association, and the Greater Portland Dental Society. If you’re in need of root canal therapy, we’d be honored to help you at Gannett Drive Dental. Book online or call our South Portland office at (207) 253-5600.