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Can Root Canal Treatment Lead to Cancer?

September 11, 2026

Filed under: Uncategorized — tntadmin @ 6:38 pm
Illustration of root canal treatment

There are many misconceptions surrounding root canal treatments, and it can often be difficult to separate fact from fiction. For instance, one rumor claims that root canals can cause you to develop cancer. Is this actually something you need to be concerned about? Or is it simply a myth? It’s essential to make sure you know the truth before you make any decisions regarding your oral health.

What Happens During Root Canal Treatment?

Your dentist may recommend a root canal treatment if the pulp inside your tooth has become infected. During the procedure, an opening is created in the tooth, and the pulp is carefully removed. After that, the inside of the tooth is cleaned to get rid of any lingering bacteria. Once the treatment is complete, the tooth is refilled and resealed. You may receive a dental crown after the procedure in order to keep the treated tooth safe.

Where Did the Idea That Root Canals Cause Cancer Come From?

The idea that root canal treatment might lead to cancer originated in the early 20th century. Dr. Weston A. Price believed that teeth that had undergone root canal treatment contained harmful toxins that could ultimately cause cancer and various other serious health issues. However, Dr. Price’s research on root canals was not properly conducted, and his claims have been discredited by more modern researchers.

So, What’s the Truth About Root Canal Treatments and Cancer?

The fact of the matter is that there is no credible evidence suggesting that root canal treatment puts patients at a higher risk for developing cancer or other systemic diseases. The procedure is considered quite safe overall, and it has a very high rate of success.

Why Should You Have Root Canal Treatment Performed?

Having a root canal treatment performed could be an important step for getting your oral health back on track. When dental pulp becomes infected, the problem won’t go away on its own; it will only grow worse over time. Eventually, the infection may spread beyond the roots of the teeth and start affecting other parts of your mouth. Thus, having a root canal treatment performed could help you avoid even more serious issues.

On top of that, an untreated infection can damage your tooth over time. Eventually, it could reach the point where saving the tooth is no longer an option, meaning you will need to have it extracted. By having a root canal treatment performed, you can save a tooth that might otherwise have to be removed.

In short, there is no need to worry about root canal treatment leading to cancer. If you still have concerns about the procedure, be sure to let your dentist know. They can clear up any misconceptions you might have so that you can feel fully confident about moving forward with your root canal.

About the Author

Dr. Dan Greenwood earned his dental degree at The Ohio State University, and he completed his General Practice Dentistry residency at the Department of Veterans Affairs in Cleveland, OH. He initially opened Greenwood Dental in 1998, and since then he has been bringing patients in Sagamore Hills comprehensive, high-quality dental care. He offers gentle root canal treatments for individuals with painful, infected teeth. If you suspect that you have an infected tooth, you can schedule an appointment with Dr. Greenwood by visiting his website or calling (330) 467-2522.

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