Face swelling due to teeth

A tooth can cause facial swelling when infection or inflammation spreads from its pulp or surrounding gum into nearby tissues.

Bacteria can enter through decay, a crack, a leaking filling, or gum disease. The body responds with inflammation, while pus may collect around a root or in the gum, producing pressure and swelling.

Do not squeeze the swelling or place aspirin on the gum. Rinse gently, take only pain medicine suitable for you as directed on its label, and arrange urgent dental assessment because drainage, a root canal, extraction, or other treatment may be needed.

Seek emergency help immediately if swelling affects the eye or neck, or if you have trouble breathing, swallowing, speaking, or opening your mouth. Fever, rapidly increasing swelling, or marked weakness also needs urgent assessment.

Ask where the infection is located, whether an examination and dental images are needed, and which treatment removes its source. Ask what warning signs mean you should return urgently.