What are signs you need a root canal?
Published on: October 27, 2026
Root canal treatment may be necessary when the pulp inside a tooth becomes infected or severely inflamed. Persistent toothache, sensitivity that lingers after hot or cold foods, and swelling around a tooth are warning signs that deserve a dental evaluation.
6 Signs You May Need a Root Canal
1. Persistent Toothache
Pain that keeps returning, throbs, or spreads towards your jaw may indicate a deeper dental problem.
2. Lingering Hot or Cold Sensitivity
If discomfort continues after the hot or cold food or drink is gone, the tooth's inner pulp may be inflamed or damaged.
3. Pain While Biting
Discomfort when chewing or applying pressure may indicate infection, a crack, or damage around the tooth.
4. Swollen or Tender Gums
Swelling or a pimple-like bump near a tooth can indicate an infection that needs prompt assessment.
5. Tooth Discolouration
A tooth that becomes unusually dark or grey may have pulp damage, although other causes are possible.
6. A Cracked or Damaged Tooth
Deep cracks, injuries, or extensive decay can expose the inner tissues and sometimes lead to infection.
How Is the Need for a Root Canal Confirmed?
These symptoms do not automatically mean you need a root canal. Dr. Ankit Desai at NxtDent Dental Clinic can examine the tooth, perform appropriate tests, and use dental X-rays when needed to determine whether root canal treatment is suitable.
Noticing one or more of these signs? Get the tooth assessed promptly, especially if pain persists or swelling develops. Facial swelling with difficulty breathing or swallowing requires emergency medical care.
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