Tooth Abscess
A tooth abscess is a pocket of infection that forms in or around a tooth, often at the root or in the gum beside it. It usually develops when bacteria reach the inside of a tooth through deep decay or a crack, or when gum disease creates a space where infection can collect. An abscess is different from ordinary tooth pain: it is an infection, and it needs dental treatment, not just pain relief.

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If you have trouble breathing, swelling that affects breathing or swallowing, uncontrolled bleeding, or a serious injury, seek urgent medical care or call emergency services right away.
What Tooth Abscess involves
A dentist will check the tooth, the gum, and any swelling, and use an X-ray when needed to locate the infection. Treatment focuses on removing the source of the infection, which may involve draining the abscess, treating the tooth, or, in some cases, removing the tooth. Antibiotics may be discussed, but they do not replace treating the infected tooth itself.
Signs of Tooth Abscess
- Persistent, throbbing pain in one tooth
- Swelling in the gum, cheek, or face near the tooth
- A bad taste in the mouth, or a small bump on the gum
- Fever, or pain that worsens with pressure or heat
What to do right away for Tooth Abscess
- Call for dental help promptly, especially if swelling or fever is present
- Avoid biting on the affected tooth and avoid very hot foods
- Rinse gently with warm water and keep the area clean
- Do not try to drain an abscess yourself
How a dentist may help with Tooth Abscess
- Examine the tooth and the swelling, and take an X-ray when needed
- Treat the source of the infection, which may include drainage or tooth treatment
- Discuss medication and follow-up care
- Explain what to watch for as the infection settles
When to seek urgent care for Tooth Abscess
Seek urgent care if swelling spreads to the face or neck, you have trouble swallowing or opening your mouth, breathing is affected, or you have a fever with facial swelling.
General information on this page is not medical advice. A dentist who examines you can give advice for your situation.
Related emergency dental help
Emergency Dental Services — back to the full list. Contact Emergency Dentist for general enquiries, or call for urgent help.
Frequently asked questions about Tooth Abscess
Is an abscess the same as a toothache?
No. A toothache is pain, which can have many causes. An abscess is an infection, and it needs dental treatment to remove its source.
Will antibiotics alone fix an abscess?
Antibiotics may help with infection, but the infected tooth usually still needs dental treatment. A dentist can advise for your case.
What if the pain suddenly stops?
Pain easing does not always mean the infection has gone. An abscess still needs a dental check.