Gum swelling behind molar
Swelling behind a molar can come from an erupting wisdom tooth, trapped food, gum infection, or an abscess and should be examined if it persists.
What can cause swelling behind a molar?
Swelling behind a molar can come from an erupting wisdom tooth, trapped food, gum infection, or an abscess and should be examined if it persists.
What is a gum flap over a partly erupted wisdom tooth?
A gum flap over a partly erupted wisdom tooth can become inflamed, called pericoronitis. Other causes include periodontal infection, molar decay, biting trauma, or a cystic lesion.
How should you care for swelling behind a molar?
Rinse gently with warm water, brush carefully, and do not press or cut the swelling. A dentist may flush the area, take a radiograph, treat infection, or discuss removal.
When does swelling behind a molar need prompt care?
Seek prompt care for increasing swelling, pus, fever, limited mouth opening, or pain that prevents eating. Facial swelling or swallowing difficulty is urgent.
Is the wisdom tooth, molar or gum pocket responsible?
Ask whether the wisdom tooth, molar, or gum pocket is responsible and whether imaging or removal is indicated.
Frequently asked questions
Can swelling behind a molar have more than one cause?
Yes. Examination helps distinguish the tooth, gum, restoration, or surrounding tissue involved.
What may the dentist do?
The dentist may inspect the mouth, test teeth and gums, and use imaging when the findings require it.
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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.