Gum is swollen in between teeth
Swelling between teeth usually reflects trapped plaque, food, or local gum inflammation, though an abscess can also cause a focused lump.
The short answer
Swelling between teeth usually reflects trapped plaque, food, or local gum inflammation, though an abscess can also cause a focused lump. The cause is identified by examining the gum, tooth contacts, and nearby tooth roots.
What can swelling between teeth indicate?
The tissue between adjacent teeth is the interdental papilla. Food impaction, plaque at the gum margin, calculus, a cavity between teeth, or a periodontal pocket can make this tissue red, tender, and enlarged.
How can I clean the swollen area safely?
Clean the contact gently with floss or an interdental brush sized to the space, then brush along the gumline with fluoride toothpaste. Do not force a sharp object into the swelling or repeatedly press it.
When does swelling between teeth need dental care?
Book a dental examination if swelling persists, bleeds often, traps food, or is associated with toothache or a bad taste. Facial swelling, fever, spreading redness, or difficulty swallowing needs prompt urgent assessment.
What should the dentist check between my teeth?
Ask whether the swelling comes from gingivitis, a periodontal pocket, food impaction, decay, or an infection at the root. Ask whether you need a bitewing radiograph, professional cleaning, or treatment for the tooth itself.
Frequently asked questions
Can food stuck between teeth make the gum swell?
Yes. Repeated food impaction can irritate the papilla and allow plaque to remain against it.
Is a swollen gum between teeth always an abscess?
No. An abscess is one possibility; examination distinguishes it from local gingival inflammation and other causes.
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.