Tooth Abscess
An abscess is a pocket of infection at the root of a tooth or in the gum. It needs prompt treatment.
What is tooth abscess?
An abscess forms when bacteria infect the nerve inside a tooth or the gum beside it. The infection can spread to the jaw and surrounding tissues if not treated.
Common causes
- Untreated deep decay
- A cracked tooth
- Previous trauma to the tooth
- Advanced gum disease
Symptoms
- Severe throbbing pain
- Swelling of the face or gum
- A pimple on the gum
- Fever
- Bad taste from draining pus
How we treat it
The infection is drained and its source treated, usually with root canal treatment or removal of the tooth. Antibiotics may be needed if the infection is spreading.
Treatments that can help
Frequently asked questions
Is an abscess an emergency?
Yes. Call us the same day. Go to hospital emergency if swelling affects breathing, swallowing or your eye.
Can antibiotics alone cure an abscess?
Antibiotics can calm the infection, but the source must be treated or it will return.
Is it urgent? Call us the same day for severe pain, swelling or a knocked-out tooth. If swelling affects your breathing or swallowing, go to your nearest hospital emergency department or call 000.