Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Toothache

Medically reviewed by Min Clinic Staff | Updated: January 2026

Toothache: Pain in the tooth or gum. The most common cause of a toothache is a cavity or an injury to a tooth that exposes the pulp, which is heavily supplied by nerves.