Swollen gum at end of teeth
A swollen gum at the back of the teeth may reflect plaque, an erupting molar, trauma, or infection that needs examination.
The short answer
A swollen gum at the back of the teeth may come from trapped plaque, an erupting tooth, trauma, or infection around a tooth.
What tissue might be swollen behind a back tooth?
The swelling may be gum behind a molar, tissue over a partly erupted wisdom tooth, or an abscess beside a tooth. Examination distinguishes these causes.
How can you clean the gum at the back of your mouth?
Rinse gently, brush carefully, and use an appropriate interdental cleaner without forcing it into the swelling. Do not puncture or squeeze the lump.
Which signs make back-of-mouth swelling urgent?
Get prompt care for spreading swelling, fever, pus, severe pain, difficulty swallowing, facial swelling, or limited mouth opening.
What should the dentist examine at the back of the mouth?
Ask whether the swelling is over an erupting tooth, beside an infected tooth, or caused by gum disease, and whether imaging is needed.
Frequently asked questions
What is the main thing to check?
The clinician should identify the tissue, tooth, appliance, or product involved before recommending treatment.
When should I arrange an appointment?
Arrange one for persistent, worsening, or unexplained symptoms, and seek urgent help for breathing or swallowing difficulty.
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Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.