Dental Nation
Symptom guide

Bleeding Between the Teeth

Bleeding between teeth can follow plaque build-up that irritates the gums and may occur with swelling or tenderness.

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The short answer

Bleeding between teeth can occur when plaque irritates the gum and may come with swelling, tenderness, or persistent bad breath.

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Bleeding Between the Teeth dental educational illustration

What it feels like

Changes that can appear with bleeding
ChangeWhat may accompany it
Bleeding during brushing, flossing, or eating hard foodsGums may be red, swollen, or sore[1][2]
Bleeding from the gum edgeBad breath, a bad taste, or gum shrinkage can also occur[1][2]

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Common causes

Plaque left between teeth can build up, irritate the gums, and harden into tartar. Tartar build-up can lead to gum disease, and professional cleaning is needed to remove it.

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Factors linked with gum disease
FactorWhy it matters
Plaque that is not removed dailyIt can harden into tartar and contribute to gum disease[1][2]
SmokingIt is a major risk factor and can make treatment less successful[1][2]

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What relief is safe tonight?

Remove plaque by brushing your teeth and cleaning between them regularly. Leaving plaque in place allows it to keep irritating the gums.

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How a dentist checks it

A gum examination looks for inflammation and measures the pockets around teeth with a small probe. Healthy pockets are usually 1 to 3 millimetres deep; deeper pockets can indicate periodontal disease. X-rays can show bone loss.

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Treatment by cause

Where plaque is the driver, daily brushing and cleaning between teeth address the build-up that irritates the gums. Tartar requires professional cleaning before the gum area can be kept clean again.

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How to reduce the chance of it returning

Brush twice a day with fluoride toothpaste and remove plaque between teeth regularly with floss, an interdental brush, a pick, or a water flosser recommended by a dental professional. Routine check-ups and professional cleaning also support gum health.

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Where this can lead

Very sore swollen gums, loose or falling teeth, mouth ulcers or red patches, or a lump in the mouth or on the lip are urgent signs alongside gum disease.

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Frequently asked questions

Can tartar be removed by brushing between my teeth?

No. Plaque can be removed through regular cleaning, but tartar requires professional cleaning by a dentist or dental hygienist.

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