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Root Canal Aftercare

Just had a root canal? Follow these simple guidelines to stay comfortable and protect your tooth. Call us at our Overland Park or Olathe office with any concerns.

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Medically reviewed by Nick Natanov, DDS, MBA · June 2026

What should you do after a root canal?

A root canal clears infection from inside the tooth. These steps help you stay comfortable and protect the tooth until the final restoration is placed.

Wait to Eat

Wait until the numbness wears off before eating so you do not bite your cheek, lip, or tongue. Start with soft foods.

Chew on the Other Side

Avoid chewing on the treated tooth until the permanent crown or filling is placed, especially if it has a temporary filling.

Manage Soreness

Mild tenderness for a few days is normal. Over the counter ibuprofen or acetaminophen usually controls it well.

Take Medication as Directed

If antibiotics or pain medication were prescribed, take them exactly as directed and finish the full course.

Keep Brushing and Flossing

Continue brushing and flossing normally, including gently around the treated tooth, to keep the area clean.

Protect a Temporary Filling

If you have a temporary filling, avoid sticky or hard foods that could loosen it. A little thin wear over time is normal.

Return for the Crown

Many back teeth need a crown after a root canal to prevent fracture. Keep your follow up appointment to complete treatment.

Watch for Warning Signs

Increasing pain or swelling after a few days is not typical. Call us if this happens.

Learn more about root canalsView →

What does root canal recovery look like day by day?

Most people return to normal activities the next day. Here is what to expect as the tooth settles.

Day 1
Numbness wears off over a few hours. Eat soft foods on the other side and manage tenderness with over the counter pain relief.
Days 2 to 3
Mild soreness or sensitivity when biting is common and usually eases. Keep the area clean and avoid chewing on the tooth.
First week
Discomfort settles and the tooth starts to feel more normal. Tenderness to pressure can linger a little longer in some cases.
Until the crown
If a permanent crown is planned, protect the tooth and keep your follow up so the restoration can be completed.

What is normal, and when should you call us?

This is normal

  • Mild tenderness or soreness for a few days
  • Sensitivity when biting on the treated tooth at first
  • A tooth that feels slightly different until the crown is placed
  • Tenderness that improves a little each day

Call us right away if

  • Severe or increasing pain not controlled by over the counter pain relief
  • Swelling of the gums, face, or jaw
  • A temporary filling or crown that comes out or breaks
  • A fever, or the bite feeling uneven after the numbness wears off

Call (913) 948-9488 (Overland Park) or (913) 247-1315 (Olathe).

Frequently asked questions

How long does pain last after a root canal?+
Mild soreness usually fades within a few days, and most people feel back to normal within about a week. Pain that gets worse instead of better, or comes with swelling, should be checked.
Can I eat after a root canal?+
Yes, once the numbness wears off. Start with soft foods and chew on the opposite side, especially if you have a temporary filling in place.
Do I need a crown after a root canal?+
Most back teeth need a crown afterward because the tooth becomes more brittle, and a crown protects it from fracturing. Your dentist will advise what is best for your specific tooth.
Why does my tooth still feel sore after a root canal?+
Mild tenderness when biting can linger for a little while as the area around the root heals. Pain that is severe, increasing, or comes with swelling is not typical and should be evaluated.
How do I care for a temporary filling?+
Avoid sticky and hard foods on that side, keep brushing and flossing gently, and return for your permanent restoration as scheduled so the tooth stays protected.

Our sources

The guidance on this page reflects recommendations from leading dental and medical organizations.

American Association of EndodontistsPost-treatment care after a root canalVisit →American Dental AssociationMouthHealthy patient guide to root canalsVisit →

This page is for general education and is not a substitute for professional dental care.

Overland Park (913) 948-9488 Olathe (913) 247-1315