Periodontics & Gums
Inflamed gum around a crown
Red, sore gum around a crown that may need a check and a clean.
Sign
Red, sore gum
Common cause
Plaque
Helps
Better cleaning
See us if
It persists
Overview
It is common for the gum around a crown to become red, swollen or tender. This is often caused by plaque collecting at the edge of the crown where it meets the gum.
Other causes include food trapping, a crown that no longer fits closely, or gum disease. Good cleaning helps, but ongoing soreness should be checked by your dentist.
What to know
- Gum around a crown looks red or swollen
- Often caused by plaque at the crown edge
- Food trapping can make it worse
- May signal a loose or ill-fitting crown
- Should be checked if it does not settle
Common questions
Why is the gum around my crown sore?
Most often plaque or trapped food has built up where the crown meets the gum, causing inflammation. Careful cleaning usually helps.
How can I settle it at home?
Clean gently but thoroughly around the crown, including flossing or using a water flosser at the gumline. A warm salt-water rinse can soothe the area.
When should I see the dentist?
If the soreness lasts more than a week, the gum bleeds a lot, or the crown feels loose, have it checked.
Could the crown be the problem?
Sometimes. A crown with a gap or rough edge can trap plaque. Your dentist can check the fit and the gum beneath it.
Is bleeding around a crown normal?
A little bleeding can happen if the area is inflamed. Ongoing bleeding is a sign the gum needs attention.
Related topics
Dental crown
A custom cap that covers and protects a damaged or weakened tooth.
Gum disease (periodontitis)
A bacterial infection of the gums and bone that support your teeth.
Peri-implantitis
An infection around an implant that can damage the bone holding it.
Non-surgical periodontal therapy
A deep clean below the gumline to treat gum disease without surgery.
Dr Rick Iskandar · Reviewed June 2026