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What to Do About Common Side Effects of Root Canals

Posted: Feb, 28, 2026

A root canal is a common dental procedure that keeps a tooth from getting infected or decaying. Even when the procedure is successful, it's normal to have some side effects afterward.

Knowing what to expect will help you feel better and make your recovery easier.

Mild Pain and Sensitivity

It's common to feel some pain or discomfort after a root canal. Your tooth may feel sensitive, especially when you bite or chew, but this usually goes away in a few days. This hurts because the tissues around the tooth are swollen.

Ibuprofen and acetaminophen are both over-the-counter medications that can help you feel better. Don't chew on the treated side until you feel better, and use a toothbrush with soft bristles so you don't damage yourself.

Swelling Around the Tooth

Your cheeks or gums near the treated tooth can swell up a little. This is usually not a big deal and is part of the healing process. Putting a cold compress on your cheek for short amounts of time and sleeping with your head raised will help the swelling go down.

Call your dentist to have it checked out if the swelling grows worse or doesn't go away after a few days.

Tooth Discoloration

The tooth that was treated may look a little darker after a root canal. This is normal. If the change in color bothers you, your dentist might be able to help you improve the tooth’s appearance with a crown or other cosmetic treatment.

Minor Infection or Inflammation

In rare cases, a root canal may be followed by infection or persistent inflammation. Swelling that continues to worsen and pus around the tooth are two important signs to watch for if your pain does not improve.
In case you notice any of them, call your dentist immediately. Getting treatment soon might help your tooth stay healthy and keep problems from happening.

Temporary Numbness or Tingling

After the procedure, the anesthesia can make your lips, tongue, or cheeks tingle or become numb for a few hours.

Don't eat or drink anything hot until the feeling comes back. Also, be careful not to bite your lips or tongue while you're still numb.

How to Help Healing

Taking care of your mouth after a root canal will help you heal faster. Don't consume hard, sticky, or crunchy items on the tooth that was treated, and be careful when you clean and floss.

Follow your dentist's advice about taking medicine and going back for checks. Regular checkups help your teeth heal and let your dentist discover problems early.

When to Call Your Dentist

Most side effects are not very bad and go away fast. However, you are supposed to call your dentist in case of severe or progressive pain, swelling that does not subside, or fever that persists beyond several days or in case your crown or filling cracks or becomes loose.

Getting help early could keep your tooth healthy and prevent problems from getting worse.

Schedule Your Consultation

If you have an infected tooth, a root canal can save it. If you know how to deal with side effects, you'll get better faster. The staff at Riverside Family Dental will provide attentive care throughout treatment and help you get through your treatment. We check on how you're healing and make sure you're comfortable. To arrange an appointment for the great dental care you need, call (586) 468-0983.

Dr Nallapaneni

Dr. Nallapaneni

Dr. Nallapaneni, a Clinton Township dentist, prioritizes skilled, compassionate care. With a DDS from the University of Illinois at Chicago, he's committed to ongoing education, staying updated with advancements in dentistry for personalized patient treatment. He is actively involved with the Macomb Dental Society, Michigan Dental Association, Academy of General Dentistry, and American Dental Association.

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At Riverside Family Dental, our mission is to help residents of Clinton Township, Mount Clemens, Chesterfield, Harrison Township, and Roosevelt attain their ideal smiles. We do this with a gentle touch and a friendly, patient-centered approach to dentistry. Our team of dentist in Clinton Township, MI, is dedicated to not only meeting your dental needs but also going above and beyond to surpass your expectations. Your dream smile is our goal.
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