One part of gum swollen
A single swollen gum area can come from trapped food, local irritation, gum disease, or infection around a tooth.
The short answer
A focused area of swollen gum is usually a local inflammation, but the cause may be the gum margin, a periodontal pocket, or an infected tooth.
What can irritate the gum beside one tooth?
The gum beside one tooth may swell when plaque or food irritates the gingiva, a sharp edge traumatizes it, or bacteria enter a cavity or cracked tooth.
How can you safely care for a swollen gum area?
Gently clean around the area with a soft brush and floss, rinse with warm salt water, and do not squeeze or puncture the swelling. A dentist may examine the pocket, test the tooth, remove trapped material or tartar, and take an X-ray if infection is suspected.
When does one swollen gum need prompt care?
Arrange dental care promptly if swelling lasts more than a few days, recurs, or is painful. Seek urgent help if it spreads, produces pus, causes fever, or makes swallowing, breathing, or opening the mouth difficult.
What treatment might a dentist recommend for swelling?
Ask whether the swelling is in the gum or coming from the tooth, whether a pocket or cavity is present, and whether cleaning, drainage, a filling, root canal treatment, or gum treatment is needed.
Frequently asked questions
Can the cause be treated at home?
Home care can reduce irritation, but a dentist must treat decay, infection, tartar, or a structural problem.
What will the appointment involve?
The clinician examines the area, tests relevant teeth and gums, and uses imaging or cleaning when the findings call for 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.