What root resorption is

Root resorption occurs when the cells around a tooth begin breaking down the root structure. It can affect:

• The outer surface of the root
• The inside of the root canal
• A small area or the entire root

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It’s often painless at first, which makes early detection important.

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Types of root resorption

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External root resorption

Affects the outer surface of the root.

Common causes:

• Trauma
• Orthodontic movement
• Infection
• Impacted teeth
• Pressure from cysts or tumours

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Internal root resorption

Begins inside the tooth, within the root canal.

Common causes:

• Inflammation
• Infection
• Long‑term untreated decay

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What causes root resorption?

Root resorption can be triggered by:

• Trauma or injury
• Orthodontic treatment
• Gum disease
• Chronic infection
• Pressure from neighbouring teeth
• Impacted wisdom teeth
• Genetic factors

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In many cases, the cause is a combination of factors.

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Symptoms of root resorption

Root resorption often develops silently. Symptoms may include:

• Tooth mobility
• Sensitivity
• Discomfort when biting
• Gum swelling
• Darkening of the tooth
• Changes visible on X‑rays

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Many people have no symptoms until the condition becomes advanced.

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How dentists diagnose root resorption

Diagnosis usually involves:

• Clinical examination
• X‑rays
• CBCT scans (3D imaging)
• Assessment of tooth mobility
• Checking for gum inflammation

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Early diagnosis improves treatment outcomes.

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Root resorption types vs symptoms

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Is root resorption serious?

Yes, if left untreated, root resorption can lead to:

• Tooth mobility
• Tooth loss
• Infection
• Structural weakness
• Pain or swelling

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Early detection is key to preventing long‑term damage.

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Treatment options for root resorption

Treatment depends on the type and severity.

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External resorption

• Monitoring
• Treating underlying causes
• Splinting mobile teeth
• Extraction in severe cases

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Internal resorption

• Root canal treatment
• Removal of damaged tissue
• Restoration with a crown
• Extraction if the tooth cannot be saved

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How to reduce your risk

• Maintain good oral hygiene
• Attend regular dental check‑ups
• Protect teeth during sports
• Treat infections early
• Follow orthodontic advice carefully

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Healthy gums and teeth reduce the likelihood of resorption.

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How ToothFairy helps

Virtual dental assessments

Upload photos and get advice quickly.

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Early detection support

Dentists can spot warning signs before symptoms appear.

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Monitoring after orthodontic treatment

Track changes and get guidance on retainer use.

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Emergency dental support

Fast help if symptoms worsen.

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When to see a dentist

You should seek advice if you notice:

• Tooth mobility
• Sensitivity
• Gum swelling
• Discolouration
• Pain when biting
• Recent trauma

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Early intervention improves outcomes.

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Your root resorption questions answered

Is root resorption painful?

Not always, many cases are painless until advanced.

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Can root resorption be reversed?

No, but treatment can stop progression.

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Does orthodontic treatment cause resorption?

It can contribute, but modern techniques reduce the risk.

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Can the ToothFairy app help?

Yes, virtual assessments support early detection and monitoring.

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