Swollen gum between molars
A swollen gum between molars is commonly linked to trapped plaque or food, but decay, a gum pocket, trauma, or an abscess can also cause it.
The short answer
Swelling between molars usually reflects inflammation of the interdental gum, although decay, periodontal infection, a food impaction, or a tooth abscess may be responsible.
What is the small gum peak between molars called?
The small gum peak between two molars is called the interdental papilla. It can become red and puffy when plaque or food remains in the contact, when a filling traps material, or when infection extends from a tooth or gum pocket.
How can you clean swollen gum between molars?
Gently brush the area and clean between the molars with floss or an appropriately sized interdental brush. Rinse with water after meals, avoid forcing a sharp object into the gum, and do not squeeze the swelling.
When should swelling between molars be examined?
Arrange dental care if swelling lasts, recurs, bleeds, or is painful. Seek urgent care for pus, fever, facial swelling, difficulty swallowing, or trouble opening the mouth.
What should you ask about swelling between molars?
Ask whether the source is the contact, gum pocket, tooth surface, or root; whether an X-ray is needed; and whether the area needs cleaning, a filling, periodontal treatment, or drainage.
Frequently asked questions
Can food stuck between molars cause swelling?
Yes. Repeated food impaction can irritate the papilla and support plaque buildup, but recurring swelling should be checked for an open contact or decay.
Should I pop a gum swelling?
No. Popping it can injure tissue and does not treat an infection under the gum or inside a tooth.
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.