Tooth Abscess
A tooth abscess is a pocket of pus caused by a bacterial infection in or around a tooth. It causes severe pain and swelling and needs prompt dental treatment.
Causes & risk factors
- Untreated tooth decay reaching the nerve
- A cracked or broken tooth
- Advanced gum disease
- A failed or old filling
- Injury to the tooth
Common symptoms
- Severe, throbbing toothache
- Swelling of the face, cheek or gum
- Fever
- A bad taste or pus in the mouth
- Pain spreading to the jaw or ear
- Swollen glands in the neck
Tests & diagnosis
- Dental examination
- Dental X-ray
- Tooth vitality (pulp) test
Treatment & management
- Draining the abscess
- Root canal treatment to save the tooth
- Tooth removal if it cannot be saved
- Antibiotics if the infection is spreading
- Pain relief and good oral hygiene
When to see a doctor urgently
- Severe toothache with facial swelling
- Fever with the tooth pain
- Difficulty breathing or swallowing (seek urgent care)
- Swelling spreading to the eye or neck
Not a diagnosis. MedDroid gives general educational information about tooth abscess. It cannot examine you, diagnose or prescribe — always confirm with a qualified doctor.
Frequently asked questions
Will antibiotics cure a tooth abscess?
Antibiotics may control the spread of infection, but they do not cure the abscess. The tooth still needs dental treatment such as drainage, root canal or removal.
Is a tooth abscess dangerous?
It can be if the infection spreads. Swelling reaching the eye or throat, or trouble breathing or swallowing, is an emergency needing immediate care.
Explore more
MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.