What does “Apical abscess” mean?
An apical abscess is a collection of pus caused by infection around the tip of a tooth root. It is often associated with pulp necrosis and root canal infection, and may cause pain, swelling, or a drainage tract.
What symptoms may occur?
There may be pain when chewing or tapping the tooth, and swelling of the gums or face. Less pain after pus drains does not mean that the source of infection has disappeared.
How is it treated?
The source of infection is addressed through root canal treatment, drainage, or other measures, and the possibility of preserving the tooth is assessed. Extraction may be needed depending on the condition; antibiotics alone do not resolve the cause inside the tooth.
When is emergency care needed?
Rapidly increasing swelling or a fever requires prompt assessment. Seek immediate emergency care for difficulty breathing or swallowing, severe swelling inside the mouth, or symptoms around the eye.
Frequently Asked Questions
If the abscess drains and no longer hurts, has it healed?
Reduced pressure may ease pain, but infection can remain. The cause in the tooth and around its root needs examination.
Is it the same as a gum abscess?
Although they may look similar, infections originating in the pulp or root canal and those originating in periodontal tissues require different treatment. Pulp responses and the gums are examined together.
Questions about an apical abscess
Learn what the term means and how it relates to your dental condition.
- Sufficient understanding
Did the infection start in the root canal?
Explanation and evidencePulp responses, imaging, and periodontal examination findings are compared to identify the responsible tooth.
American Association of Endodontists · Abscessed Teeth - A choice suited to your condition
Is there swelling or are there systemic symptoms?
Explanation and evidenceSigns of spreading infection determine the urgency and setting of care.
NHS · Dental Abscess

