
What Causes White Spots on Teeth and How to Treat Them
February 13, 2026If you’ve been dealing with ongoing tooth pain or sensitivity, you might be wondering, “Do I need a root canal?” It’s a common question, and the answer usually comes down to what’s happening inside the tooth. The good news is that root canal treatments are a routine dental procedure and are very effective at relieving pain and saving your natural tooth. Many people find relief quickly, and the results help restore comfort.
A root canal treatment is recommended when the inner part of the tooth becomes inflamed or infected. This area contains blood vessels, nerves, and connective tissue. When it’s compromised, the tooth can’t heal on its own and needs treatment to prevent things from getting worse.
Here are five signs to watch for.
1. Persistent Tooth Pain
Not all tooth pain means you need a root canal, but pain that doesn’t go away is a red flag.
This can feel like:
- A deep, aching pain
- Pain when chewing or biting
- Discomfort that comes and goes but keeps returning
This type of tooth pain often points to an infected tooth or damage deep inside the pulp. If it’s left untreated, the infection can spread and lead to more serious issues.
2. Lingering Sensitivity to Hot or Cold
Sensitivity to hot or cold is common, but it should go away quickly once the source is removed.
If you notice:
- Sensitivity to hot drinks or foods that lingers
- Sharp pain when eating something cold
- Discomfort that sticks around longer than a few seconds
This may mean the inner tissue of the tooth is inflamed or damaged. Lingering sensitivity is one of the most common signs that a dentist may recommend a root canal procedure.

3. Swelling or Tenderness in the Gums
Swelling near a specific tooth can indicate an infection below the surface.
You might notice:
- Tender or swollen gums
- A small bump near the tooth
- Pain when touching the area
This can be caused by bacteria building up inside the tooth and spreading into the surrounding tissue. It’s important to address this early to protect your oral health and avoid more complications.
4. A Chipped or Cracked Tooth
A chipped or cracked tooth can expose the inner layers of the tooth, making it easier for bacteria to reach the pulp.
This can happen from:
- Injury to the tooth
- Biting down on something hard
- Wear over time
Even if there’s no immediate pain, a cracked tooth can lead to infection. In many cases, a root canal treatment is needed to save the natural tooth and prevent the damage from spreading.
5. Tooth Discolouration
A tooth that becomes darker than the surrounding teeth may be a sign of internal damage.
This can happen when:
- Blood vessels inside the tooth break down
- The pulp becomes infected or dies
Discolouration does not always mean pain, but it can indicate that the tooth is no longer healthy and needs attention.
What Happens Next?
If you’re experiencing any of these symptoms, the next step is a proper evaluation. A dentist will assess the tooth and determine if a root canal procedure is the right solution.
The goal of root canal treatment is to remove the infected tissue, clean the inside of the tooth, and seal it to avoid further problems. This allows you to keep your natural tooth rather than needing an extraction.
When to Book an Appointment
If you’re asking yourself, do I need a root canal, it’s usually a sign something isn’t right.
Early treatment makes a big difference. Addressing an infected tooth sooner can help relieve pain, protect your oral health, and avoid more complex procedures later on.
If you’re experiencing tooth pain, sensitivity to hot or cold, or signs of an infected tooth, the team at Ovation Dental is here to help. We’ll take the time to assess what’s going on and recommend the right treatment for your situation.
Set your appointment today and get clarity on what your tooth needs before it gets worse.



