Root canals are a lifesaver for teeth with severe decay or infection. The procedure removes the infected pulp and nerves, alleviating the initial pain and preserving the tooth. However, some people experience lingering sensitivity or discomfort, especially when applying pressure. If you’re wondering, “Why does my tooth with a root canal hurt when I press on it?” this blog is for you.

We’ll delve into the reasons behind this post-root canal sensitivity and provide valuable information on managing discomfort and ensuring a smooth recovery.

Understanding Root Canals and Potential Discomfort

A root canal involves removing the infected pulp, which contains nerves and blood vessels, from the core of your tooth. While the procedure eliminates the source of initial pain, some temporary discomfort is normal. This can include:

Mild soreness or tenderness around the treated tooth
Sensitivity to hot or cold temperatures

This discomfort typically subsides within a few days as the surrounding tissues heal. However, in some cases, you might experience a dull ache or pain when biting down or applying pressure to the treated tooth. Let’s explore some reasons why this might happen.

Why Does My Tooth Hurt When I Press It After a Root Canal?

Several factors can contribute to a tooth with a root canal hurting with pressure:

Inflammation: The root canal procedure itself can cause inflammation in the surrounding tissues. This inflammation can lead to discomfort, especially when biting down or applying pressure.
Incomplete Removal of Infection: In rare cases, the dentist might not be able to remove all the bacteria from the root canals during the procedure. This residual infection can continue to irritate the tissues and cause pain. (This occurs in about 5% of cases according to [a dental health blog on root canal pain])
Fractured Tooth: Sometimes, the tooth itself might be fractured during the root canal procedure. This fracture can cause pain, especially when pressure is applied.
Improper Filling: A temporary or permanent filling that’s too high can put extra pressure on the tooth, leading to discomfort.
Nerve Irritation: During the procedure, the nerves surrounding the tooth might become irritated. This irritation can manifest as sensitivity or pain when pressure is applied.

Why Does My Root Canal Tooth Hurt When I Bite Down?

Pain when biting down after a root canal can stem from several causes:

Inflammation: As mentioned earlier, inflammation around the treated tooth can make it sensitive to pressure, including biting down.
Fractured Tooth: Similar to applying direct pressure, a fractured tooth can cause pain when biting down due to the compromised structure.
Improper Bite: If the filling or crown placed on the treated tooth alters your bite even slightly, it can lead to discomfort when chewing.

How Do I Know If My Root Canal Is Infected?

While some post-root canal sensitivity is normal, certain signs might indicate a lingering infection:

Intensifying pain: If the pain worsens instead of subsiding within a few days, it could be a sign of infection.
Throbbing or pulsating pain: This type of pain is often indicative of an underlying infection.
Swelling in the gums: Inflammation or swelling around the treated tooth can be a sign of infection.
Fever: A low-grade fever along with other symptoms might indicate a spreading infection.
Bad taste in your mouth: A persistent unpleasant taste can sometimes accompany a dental infection.

What Are the Symptoms of a Failed Root Canal?

While root canals are highly successful, there are instances where the procedure might not fully resolve the issue. Here are some signs of a potentially failed root canal:

Persistent pain: If the pain doesn’t improve or worsens after a few weeks, it could indicate a failed root canal.
Visible pus: Pus drainage from the gums around the treated tooth is a clear sign of infection.
Loose tooth: A tooth that becomes loose after a root canal might be a sign of a failed procedure or underlying bone infection.
Facial swelling: Significant swelling in the face or jaw area can be a serious complication of a failed root canal.

How Do Dentists Fix an Infected Root Canal?

If you experience symptoms suggestive of an infected root canal, it’s crucial to see your dentist promptly. Here’s what you can expect:

Examination and X-rays: The dentist will examine the tooth and take X-rays to assess the situation.
Re-treatment: In many cases, the dentist can retreat the infected tooth. This involves re-opening the tooth, removing any remaining infection, and cleaning and disinfecting the canals. The dentist will then place a new filling and possibly a crown to restore the tooth’s structure.
Apicoectomy: If the re-treatment proves unsuccessful or the infection extends beyond the root canals, an apicoectomy might be necessary. This surgical procedure involves removing the infected tip of the tooth root and sealing the area.
Extraction: As a last resort, if the tooth is severely damaged or the infection cannot be controlled, the dentist might recommend extraction.

Preventing Post-Root Canal Discomfort

Here are some tips to minimize discomfort after a root canal and promote a smooth recovery:

Follow post-operative instructions: Your dentist will provide specific instructions on caring for the treated tooth after the procedure. Following these instructions diligently is crucial for optimal healing.
Over-the-counter pain medication: Over-the-counter pain relievers like ibuprofen or acetaminophen can help manage discomfort after the procedure.
Cold compress: Applying a cold compress to the outside of your cheek near the treated tooth can reduce swelling and discomfort.
Soft foods: Stick to soft foods for the first few days after the procedure to minimize pressure on the treated tooth.
Good oral hygiene: Maintain good oral hygiene by brushing and flossing gently around the treated tooth to prevent further irritation.

Make an Appointment with Alexandria Dental Spa

At Alexandria Dental Spa, we understand the importance of comprehensive dental care, including root canals. Our experienced and compassionate dentists use advanced techniques to ensure a comfortable and successful root canal experience.

If you’re experiencing pain or discomfort after a root canal, or have any questions about root canal treatment, contact Alexandria Dental Spa today to schedule an appointment.

FAQs

1. How long should pain last after a root canal?

Mild soreness or sensitivity is normal for a few days after a root canal. However, if the pain is severe, persistent, or worsens, it’s important to see your dentist.

2. Can a root canal-treated tooth still get infected?

Yes, although rare, a root canal-treated tooth can still become infected. This can happen if bacteria are not completely removed during the procedure or if the tooth fractures.

3. What happens if I don’t treat an infected root canal?

An untreated root canal infection can spread to the jawbone and surrounding tissues, leading to serious complications like bone loss and abscesses.

4. Can I eat normally after a root canal?

It’s best to stick to soft foods for the first few days after a root canal to avoid putting pressure on the treated tooth. Gradually reintroduce harder foods as your tooth heals.

5. How can I prevent needing a root canal?

Maintaining good oral hygiene by brushing twice a day, flossing daily, and scheduling regular dental checkups can help prevent the need for root canals. Early detection and treatment of cavities can prevent them from progressing to the point where a root canal is necessary.

Why Does My Tooth With Root Canal Hurt With Pressure?