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Symptom guide

Dental abscess — what to do

An abscess is a pocket of infection at the root of a tooth or in the surrounding gum. It will not heal on its own and the infection can spread. Here is what to watch for and how we treat it.

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This is not a diagnosis. This page describes common causes and general self-care suggestions. It cannot replace an in-person exam. If you are unsure, please call us — we will help you figure out what to do.

Possible causes

Common reasons behind abscess. Only an exam can confirm the cause for you.

  • An untreated cavity that reached the nerve and let bacteria into the bone
  • A cracked tooth that opened a path to the inner pulp
  • Severe gum disease that created a deep pocket around a tooth
  • A previous root canal that has reinfected
  • Trauma to a tooth that killed the nerve, sometimes years before symptoms appear

When to come in — or call right away

Any of the following deserves prompt evaluation. Call us today.

  • Facial or neck swelling — especially if it is changing the shape of your face
  • Fever, chills, or feeling generally unwell
  • Difficulty swallowing, breathing, or opening your mouth
  • A bump on the gum that drains pus or bad-tasting fluid
  • A tooth that feels noticeably taller, looser, or extremely tender to bite on

What you can try right now

These are general suggestions, not medical advice. Follow the directions on any product you use, and ask your dentist or doctor if you are unsure.

  • Take over-the-counter pain reliever following the directions on the package.
  • Rinse gently with warm salt water; do not squeeze or press on the swollen area.
  • A cold compress on the outside of the cheek can ease swelling for short stretches.
  • Stay well hydrated and rest until you can be seen.
  • Do not place aspirin or other tablets directly on the gum — it can burn the tissue.

Common questions

Dental Abscess FAQ

Not sure what to do next?

Call us — we will help you decide whether you need to be seen today or whether it can wait for a routine visit. Hablamos español. Nói tiếng Việt.