5 Warning Signs of Infection After a Root Canal: Kevin Molldrem DDS Explains What You Need to Know in 2025

 

A root canal is a highly effective treatment for saving a damaged or infected tooth. However, while most procedures go smoothly, there is still a small chance of post-treatment infection. Recognizing the early signs of infection is crucial for preventing further complications. Dr. Kevin Molldrem DDS, a trusted dental expert, shares the five key symptoms that may indicate an infection after a root canal and what to do if you experience them.

1. Persistent or Worsening Pain

While some discomfort is normal after a root canal, it should gradually subside within a few days. If you experience sharp, throbbing pain that intensifies or persists beyond a week, it could be a sign of infection. According to Kevin Molldrem DDS, prolonged pain suggests that bacteria may still be present in the treated area, requiring immediate attention from your dentist.

2. Swelling in the Gums or Face

Mild swelling after a root canal is expected, but excessive or persistent swelling could indicate an infection. If your gums appear red, swollen, or tender around the treated tooth, or if you notice puffiness spreading to your face or jaw, seek professional evaluation. Kevin Molldrem DDS advises that severe swelling accompanied by pain should never be ignored, as it may signal an abscess or spreading infection.

3. Persistent Bad Breath or a Bad Taste

If you notice a foul taste in your mouth or persistent bad breath that doesn’t go away with brushing and rinsing, it may be due to an infection. This can happen if pus is forming near the treated tooth. Kevin Molldrem DDS warns that ignoring this symptom can lead to further dental complications, making early intervention essential.

4. Fever and General Malaise

A fever is a common sign that your body is fighting an infection. If you develop a fever, chills, or overall weakness after a root canal, it could mean the infection is spreading beyond the tooth. Kevin Molldrem DDS stresses the importance of contacting your dentist immediately if you experience flu-like symptoms, as untreated infections can impact your overall health.

5. Recurring Pimples or Abscesses on the Gums

A small pimple-like bump (dental abscess) near the treated tooth is a clear sign of an infection. These abscesses may release pus or fluid and often reappear even after being cleaned. Kevin Molldrem DDS explains that an abscess occurs when bacteria remain trapped inside the root canal, requiring additional treatment such as drainage, antibiotics, or retreatment of the root canal.

What to Do If You Notice These Symptoms

If you experience any of these signs, it’s important to contact your dentist as soon as possible. Delaying treatment can lead to complications such as bone loss, spreading infection, or even tooth extraction. Depending on the severity of the infection, your dentist may prescribe antibiotics, perform a second root canal, or recommend other treatment options to save the tooth.

Conclusion

A root canal is meant to relieve pain and restore dental health, but infections can sometimes occur. By paying attention to the warning signs mentioned above and seeking timely dental care, you can prevent serious complications. If you suspect an infection after a root canal, don’t hesitate to reach out to an experienced dentist like Kevin Molldrem DDS for expert care and guidance.