Tooth pain after a root canal treatment is a frequent concern for many patients. While it can cause anxiety, this type of pain is often temporary and a part of the normal healing process. In the following text, we will explain why pain occurs, how long it lasts, and how to relieve it.
Why Does Pain Occur After a Root Canal Treatment?
During the root canal procedure, the dentist removes the damaged or infected pulp from inside the tooth. This process can irritate the surrounding tissue, particularly the nerves near the tip of the tooth root. Although the nerve inside the tooth is removed, the nerves in the surrounding tissue remain sensitive. This tissue may be inflamed due to an infection that was present before the procedure or as a response to the treatment itself.
The inflammation that occurs after the treatment is a normal reaction of the body as it attempts to heal the affected tissue. This healing process involves increased blood flow and immune cell activity in the area, which can result in a throbbing pain or tenderness.

How Long Does the Pain Last?
Pain after a root canal typically lasts a few days, but in some cases, it can persist for several weeks. The first 24 to 48 hours may be more intense, but the discomfort usually subsides gradually afterward.
How to Alleviate the Pain?
There are several ways to alleviate pain following a root canal:
- Pain relief medication: Your dentist may recommend medications like ibuprofen or acetaminophen, which help reduce pain and inflammation. Follow your dentist’s instructions when taking these medications.
- Avoid chewing on that side: In the first few days after the procedure, avoid chewing on the side where the treatment was performed. This will help reduce pressure on the treated tooth.
- Maintain oral hygiene: It’s important to continue regular brushing and flossing but be gentle around the treated tooth to avoid irritation.
When to Visit the Dentist?
While mild pain is normal, there are situations where you should visit your dentist again. Schedule an appointment if you notice the following symptoms:
- Intense and prolonged pain that doesn’t subside even with medication.
- Swelling that doesn’t decrease after a few days.
- Fever or a feeling of weakness, which may indicate an infection.
- Sensitivity to touch or biting that does not improve.
Pain after a root canal treatment is a common occurrence and is usually not a cause for concern. It’s important to follow your dentist’s advice, take prescribed medications, and carefully monitor your symptoms. If the pain persists or worsens, don’t hesitate to contact your dentist to take the necessary steps.
