MedDroid
Ask MedDroid
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
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. 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.