Gum around crown bleeding

Bleeding around a crowned tooth commonly reflects gum inflammation from plaque, trapped cement, an overcontoured margin, or a problem beneath the crown.

The crown margin meets the prepared tooth near the gingival sulcus. Plaque or cement can irritate this tissue, while decay, a loose crown, a crack, or an ill-fitting margin can cause food retention or deeper disease.

Clean the margin with a soft brush and suitable floss threader or interdental brush without forcing it downward. A dentist may probe, take a radiograph, remove excess cement, adjust or replace the crown, or treat decay and gum disease.

Arrange care if bleeding persists, the crown feels loose, chewing hurts, or there is bad taste, swelling, pus, or worsening sensitivity. Facial swelling, fever, or difficulty swallowing needs urgent assessment.

Ask whether the bleeding is from gum or tooth, whether the margin is sealed and accessible, and whether imaging or crown removal is needed.