
Brushing vs. Flossing: Which One Is More Important?
December 10, 2025Root canals are a common dental procedure designed to save natural teeth that might otherwise need to be removed. The procedure treats the infected pulp inside a tooth. This area of a tooth contains blood vessels, nerves, and connective tissue. Knowing the warning signs of a root canal can help you get treatment early and protect your oral health.
Understanding the Need for a Root Canal
Every tooth has an inner core called the pulp. When bacteria from tooth decay or injury reach the pulp, it can become inflamed or infected. If left untreated, the infection can spread, causing severe pain or even abscesses.
Root canal treatment removes the decayed or infected pulp, cleans the inside of the tooth, and seals it to prevent further damage. It’s a safe and highly effective dental treatment.
Treated teeth can last a lifetime with proper care. But how do you know when a root canal might be necessary?
Telltale Signs You Might Need a Root Canal
There are several warning signs that indicate a tooth may need a root canal. Some are easy to notice, while others develop slowly over time.
Persistent Tooth Pain
Tooth pain that doesn’t go away is one of the most common signs. It may occur when chewing, biting, or even when your mouth is at rest. The pain can vary from a dull ache to sharp, intense bursts.
Sensitivity to Hot or Cold
If your tooth reacts strongly to hot or cold foods and drinks, it could indicate infected pulp. Sensitivity that lingers long after the temperature stimulus is removed is a warning sign.
Swelling or Tenderness
Swollen gums near a specific tooth or tenderness in your jaw can signal an infection. In some cases, swelling extends to the face or neck. Ignoring this can worsen the infection.
Chipped, Cracked, or Damaged Teeth
A chipped or cracked tooth can expose the pulp to bacteria, increasing the risk of infection. Even minor damage can lead to a need for root canal treatment if left untreated.
Darkening or Discolouration of a Tooth
A tooth that darkens over time may indicate damage to the pulp. Discolouration often happens when the blood vessels and nerves inside the tooth are compromised.
Pus or Abscess Formation
In severe cases, pus may form at the base of the tooth. An abscess is a sign that the infection has spread beyond the pulp. This requires immediate dental care.
Recurring Pimples on Gums
Small bumps or pimples on the gums near a tooth can be linked to an underlying infection. These may release fluid and cause bad taste or smell in your mouth.

Additional Factors That Increase the Risk that You Need a Root Canal
Certain conditions make it more likely you will need a root canal:
- Poor oral hygiene that allows cavities to form
- Deep tooth decay that reaches the pulp
- Repeated dental procedures on the same tooth
- Trauma or injury to a tooth
Even if you practice good oral hygiene, accidents and injuries can happen. Regular dental checkups help catch issues before they become severe.
How a Root Canal Protects Your Natural Tooth
Root canal treatment may sound intimidating at first, but it is important to keep in mind that this is a procedure designed to save your natural tooth. And it works.
During the procedure, the dentist removes the infected pulp, cleans the canals inside the tooth, and seals it. This prevents the infection from spreading and restores the tooth’s function.
If you have anxiety about going to the dentist or potentially require additional support, such as sedation dentistry services, with the right dental clinic, it can be arranged. Fear or anxiety is no reason to avoid getting a root canal done.
After a root canal, a crown or filling is often placed to protect the tooth and maintain its strength. With proper care, a treated tooth can last a lifetime. Preserving your natural tooth helps maintain jaw structure, alignment, and overall oral health.
When to See Your Dentist for a Root Canal
If you notice any of the warning signs mentioned above, it’s important to contact your dentist promptly.
Don’t wait. Early detection of a tooth in need reduces the risk of complications and makes treatment simpler. By comparison, ignoring symptoms can lead to severe pain, abscesses, and even tooth loss. Regular checkups, proper oral hygiene, and timely treatment are the best ways to protect your health.
Root canals are always necessary when the pulp inside a tooth becomes infected or damaged. There is no way around it. Contact us at Knox Mountain Dentistry to find out how we may be able to help save your damaged tooth.
If you suspect you may need a root canal or want to schedule a simple dental cleaning and assessment, don’t wait. Book an appointment today with Knox Mountain Dentistry. Protect your oral health and let’s do what we can today to avoid more complex dental procedures in the future.



