Signs you may need a root canal
A root canal treats the inside of a tooth, the soft tissue called the pulp, when it becomes badly inflamed or infected. Many tooth problems feel alike, so no symptom on its own means you need one. Only an exam and an X-ray can tell. Signs worth having checked:
- Lingering pain, especially a deep ache or throbbing that comes and goes
- Sensitivity to hot or cold that stays long after the hot or cold is gone
- Pain when you bite down or press on a tooth
- A tooth that has darkened compared with the teeth around it
- Swelling or tenderness in the gum near a tooth, or a small bump on the gum
- A deep cavity, a crack, or a past injury to the tooth









