What is the direct answer?
Bleeding beside a dental crown usually reflects inflamed gum tissue, but a loose edge, decay or infection also needs examination.
What does this question mean?
Plaque can collect where the crown meets the gum and inflame the gingival margin. Bleeding may also follow forceful flossing, a crown contour that traps plaque, decay at the margin, a cracked tooth or inflammation around the root.
What can you do next?
Brush gently with fluoride toothpaste and clean between the crowned tooth and its neighbours without snapping the floss into the gum. Do not pick at the crown or place aspirin on the bleeding tissue, and note when bleeding occurs.
When should you seek dental care?
Book an examination when bleeding recurs, the gum is swollen or tender, the crown feels loose, chewing hurts, food catches at the edge or there is a bad taste. Seek urgent care for facial swelling, fever, uncontrolled bleeding or trouble breathing or swallowing.
What should you ask the dentist?
Ask whether the bleeding is from the gum or the tooth, whether the crown margin seals correctly, whether decay or root inflammation is present, and whether cleaning, crown adjustment, root treatment or replacement is needed.
Frequently asked questions
Is bleeding around a crown always a problem with the crown?
No. The bleeding may come from gum inflammation, but the crown edge, tooth underneath and root tissues should be checked when it persists.
Can I floss around a crown?
Yes, clean the contact gently with floss or an appropriate interdental aid. A dentist or hygienist can show the method if the contact is tight or the gum bleeds repeatedly.

