One swollen gum
One swollen gum area may be caused by trapped food, local irritation, gum disease, an erupting tooth, or infection from a nearby tooth.
The short answer
A single site points toward a local problem, such as a sharp edge, food impaction, periodontal pocket, cracked filling, or an abscess near the root. The dentist compares the swollen area with neighbouring gums and checks the tooth for decay, mobility, tenderness, and pulp response.

How should you clean around one swollen gum?
Rinse gently, brush the area carefully, and use floss or an interdental brush only if it enters without force. Do not squeeze the swelling or apply aspirin to the gum, and record whether it changes after meals or releases fluid.
What should you do if the swelling persists?
Arrange prompt care if the swelling persists, enlarges, drains, or accompanies pain, bad taste, fever, or a loose tooth. Emergency care is needed for facial spread or difficulty breathing or swallowing.
When does a swollen gum need prompt dental care?
Ask whether the swelling is caused by the gum pocket, tooth root, wisdom tooth, or an irritant. Ask whether cleaning, a filling, root canal treatment, drainage, or another procedure is needed.
Frequently asked questions
What is the first step at home?
Arrange prompt care if the swelling persists, enlarges, drains, or accompanies pain, bad taste, fever, or a loose tooth. Emergency care is needed for facial spread or difficulty breathing or swallowing.
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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.
