Does it hurt when you need a root canal

A tooth needing root canal treatment may hurt spontaneously or with heat and chewing, but some infected pulps cause little or no pain.

Root canal treatment is considered when inflammation or infection has reached the pulp, the living tissue inside the tooth. Decay, cracks, repeated dental work, or trauma can let bacteria reach this space and the tissues around the root.

The dentist tests temperature, biting, tapping, and pulp response, examines the gums, and may take radiographs. During treatment, local anaesthetic is used, the tooth is isolated, the canals are cleaned and shaped, sealed, and then restored with a filling or crown when needed.

Seek prompt care for lingering thermal pain, spontaneous throbbing, tenderness to biting, swelling, or a gum pimple. Facial swelling, fever, or trouble swallowing or breathing requires urgent assessment.

Ask what the tests show, whether the tooth can be restored, what anaesthetic and isolation will be used, and what final restoration will protect the tooth after the canals are sealed.