Swollen gum under molar
A swollen gum under a molar can reflect trapped food, gum inflammation, an erupting wisdom tooth, or infection from the tooth or surrounding tissues.
The short answer
A swollen gum under a molar can reflect trapped food, gum inflammation, an erupting wisdom tooth, or infection from the tooth or surrounding tissues. The swelling may involve gingiva, a periodontal pocket, or a draining sinus from an infected tooth; examination and often an X-ray identify the source.
Which tissues may be behind swelling under a molar?
The swelling may involve gingiva, a periodontal pocket, or a draining sinus from an infected tooth; examination and often an X-ray identify the source. Rinse gently with warm salt water, brush carefully, remove visible food without sharp objects, and do not squeeze the swelling.
How can you care for a swollen gum under a molar?
Rinse gently with warm salt water, brush carefully, remove visible food without sharp objects, and do not squeeze the swelling. Ask whether the cause is a pocket, cavity, root infection, food trap, or wisdom tooth and whether probing or radiographs are needed.
When is swelling under a molar an urgent concern?
Seek urgent care for facial swelling, fever, pus, bad taste, worsening pain, limited opening, or swallowing or breathing difficulty.
What tests can identify the cause under a molar?
Ask whether the cause is a pocket, cavity, root infection, food trap, or wisdom tooth and whether probing or radiographs are needed.
Frequently asked questions
What is the main cause?
The swelling may involve gingiva, a periodontal pocket, or a draining sinus from an infected tooth; examination and often an X-ray identify the source.
What should I do now?
Rinse gently with warm salt water, brush carefully, remove visible food without sharp objects, and do not squeeze the swelling.
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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.