My gums in the back are swollen
Swelling at the back of the gums can come from trapped food, gum inflammation, a molar infection, or tissue around a partially erupted wisdom tooth.
What can cause swelling at the back of the gums?
Swelling at the back of the gums can come from trapped food, gum inflammation, a molar infection, or tissue around a partially erupted wisdom tooth.
Why can a wisdom tooth create a swollen gum flap?
The gum behind the last molar can form a flap around a partly erupted wisdom tooth. Plaque and food trapped there may cause pericoronitis, while a molar may develop decay or an abscess.
What can you do safely for swollen back gums?
Use gentle oral hygiene, clean between the teeth, and avoid caustic substances or forceful manipulation. A dentist can examine the tissues, test the teeth, and use imaging when it answers a specific clinical question.
When does swelling at the back need dental care?
Arrange care for persistent or worsening symptoms, swelling, pus, fever, a broken or loose tooth, or an unexplained dark area. Difficulty breathing or swallowing and rapidly spreading facial swelling require urgent help.
What should the dentist check behind the last molar?
Ask which structure is affected, what caused the finding, whether an X-ray or other test is needed, which treatments preserve healthy tissue, and what alternatives and aftercare apply.
Frequently asked questions
Could this be caused by an infection?
It could be, but the cause may also be irritation, decay, a crack, or gum inflammation. Examination distinguishes these problems.
What will the dentist check?
The dentist reviews the history, examines the tissues, tests relevant teeth, and orders imaging when it is clinically useful.
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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.