Misinformation spreads fast—especially when it plays on fear. One of the most misleading and widespread myths in dentistry is the belief that root canals are linked to cancer. Outdated studies and misleading theories have kept this myth alive, causing unnecessary fear about a safe and common dental procedure. Let’s take a look at what the science actually says.
At Prostho Endo Dental, we believe in empowering our patients with the facts. If you've been hesitant about getting a root canal due to concerns about your health, let’s set the record straight once and for all.
At Prostho Endo Dental, we believe in empowering our patients with the facts. If you've been hesitant about getting a root canal due to concerns about your health, let’s set the record straight once and for all.
Where Did the Root Canal and Cancer Myth Start?
The myth that root canals are linked to cancer can be traced back to the early 20th century and the work of Dr. Weston Price. Dr. Price was a dentist who conducted research in the 1920s, claiming that root canals trap toxins that lead to systemic diseases, including cancer.
His research, however, has been widely debunked by modern science. His methods lacked proper controls, and his findings have never been successfully replicated in legitimate, peer-reviewed studies. Yet, despite being outdated and scientifically unsound, his theories continue to resurface—largely due to misinformation spread online.
At Prostho Endo Dental, we base our treatments on proven, evidence-based dentistry. The idea that root canals cause cancer is not just incorrect—it’s dangerous because it discourages people from getting the dental care they need.
His research, however, has been widely debunked by modern science. His methods lacked proper controls, and his findings have never been successfully replicated in legitimate, peer-reviewed studies. Yet, despite being outdated and scientifically unsound, his theories continue to resurface—largely due to misinformation spread online.
At Prostho Endo Dental, we base our treatments on proven, evidence-based dentistry. The idea that root canals cause cancer is not just incorrect—it’s dangerous because it discourages people from getting the dental care they need.
Do Root Canals Cause Cancer? What the Science Says
So, is there any real connection between root canals and cancer? The answer is a no.
Modern research has thoroughly examined the claim and found no credible link between root canals and cancer. In fact, some studies suggest that root canals may actually reduce cancer risk by eliminating chronic infections in the mouth.
Modern research has thoroughly examined the claim and found no credible link between root canals and cancer. In fact, some studies suggest that root canals may actually reduce cancer risk by eliminating chronic infections in the mouth.
Key Scientific Findings:
- A 2013 study published in Cancer Epidemiology, Biomarkers & Prevention found that individuals who had undergone root canal treatment were actually at a slightly lower risk of developing certain types of cancer, including head and neck cancers.
- The American Association of Endodontists (AAE) has repeatedly confirmed that root canal treatments are safe, effective, and medically necessary for treating infected teeth.
- The American Cancer Society has stated that no scientific evidence supports the claim that root canals cause cancer or other systemic diseases.
The reality is that root canal procedures remove harmful bacteria from infected teeth, preventing infections from spreading throughout the body. Far from being dangerous, root canals actually help protect your overall health.
What Happens During a Root Canal?
To fully understand why root canals are safe, let’s break down what happens during the procedure:
1. Diagnosis and Preparation: We take X-rays to assess the infection and numb the area to ensure a painless experience.
2. Removing the Infection: The infected pulp inside the tooth is carefully removed, eliminating bacteria and preventing further decay.
3. Cleaning and Disinfection: The root canals are cleaned and sealed with a biocompatible material to prevent reinfection.
4. Restoration: A crown or filling is placed over the tooth to restore function and strength.
At Prostho Endo Dental, we use state-of-the-art technology and modern anesthesia techniques to make root canals a comfortable, efficient, and safe experience.
1. Diagnosis and Preparation: We take X-rays to assess the infection and numb the area to ensure a painless experience.
2. Removing the Infection: The infected pulp inside the tooth is carefully removed, eliminating bacteria and preventing further decay.
3. Cleaning and Disinfection: The root canals are cleaned and sealed with a biocompatible material to prevent reinfection.
4. Restoration: A crown or filling is placed over the tooth to restore function and strength.
At Prostho Endo Dental, we use state-of-the-art technology and modern anesthesia techniques to make root canals a comfortable, efficient, and safe experience.
The Real Danger: Avoiding Necessary Dental Treatment
While the myth about root canals causing cancer is completely false, the real danger comes from not getting proper treatment. When an infected tooth is left untreated, it can lead to:
- Severe pain and swelling
- Abscess formation, which can spread infection to other parts of the body
- Bone loss in the jaw
- Increased risk of heart disease due to chronic oral infections
In extreme cases, untreated dental infections can even lead to life-threatening conditions like sepsis. The truth is, avoiding a root canal when it’s needed poses a far greater risk to your health than getting one.
Debunking Common Myths About Root Canals and Cancer
Let’s address some of the most common arguments used to spread this myth:
❌ “Root canals leave toxins in the body that cause cancer.”
➡️ False. Modern root canal treatments thoroughly clean and seal the tooth, leaving no room for lingering toxins or bacteria.
❌ “Root-canaled teeth are ‘dead’ and harm the immune system.”
➡️ False. A tooth that has undergone a root canal is no more “dead” than a tooth with a filling. It continues to function normally, supported by surrounding tissues.
❌ “Most cancer patients have had root canals, so there must be a link.”
➡️ Misleading. Correlation does not equal causation. Many cancer patients also drink water—does that mean water causes cancer? Of course not.
These myths are not backed by science and should not influence your decision to get necessary dental care.
❌ “Root canals leave toxins in the body that cause cancer.”
➡️ False. Modern root canal treatments thoroughly clean and seal the tooth, leaving no room for lingering toxins or bacteria.
❌ “Root-canaled teeth are ‘dead’ and harm the immune system.”
➡️ False. A tooth that has undergone a root canal is no more “dead” than a tooth with a filling. It continues to function normally, supported by surrounding tissues.
❌ “Most cancer patients have had root canals, so there must be a link.”
➡️ Misleading. Correlation does not equal causation. Many cancer patients also drink water—does that mean water causes cancer? Of course not.
These myths are not backed by science and should not influence your decision to get necessary dental care.
We did the root canal in this patient case and and 6 months follow up shows that bone
came back in the furcation area and smaller radiodensity at apex of mesial root.
They don’t cause infection—they heal it!
Why Trust Prostho Endo Dental for Your Root Canal Treatment?
At Prostho Endo Dental, we specialize in advanced endodontic care, ensuring that every root canal procedure is performed with precision, care, and comfort. Here’s what sets us apart:
⭐ Expert Team: Our skilled endodontists have years of experience performing safe and successful root canals.
⭐ State-of-the-Art Technology: We use advanced imaging, laser techniques, and biocompatible materials for optimal results.
⭐ Comfort-Focused Approach: Our sedation and pain management techniques ensure a stress-free experience.
⭐ Patient Education: We believe in transparency and evidence-based care—no myths, just facts.
If you’ve been avoiding a root canal due to fear or misinformation, we’re here to help. Our priority is to protect your smile while supporting your overall health.
The Bottom Line: Root Canals Are Safe and Necessary
The claim that root canals cause cancer is not only false—it’s a dangerous myth that can lead people to neglect essential dental care. The truth is:
✔️ Root canals eliminate infection, improving overall health.
✔️ No credible scientific evidence links root canals to cancer.
✔️ Avoiding a root canal when needed can cause severe health problems.
At Prostho Endo Dental, we’re committed to providing safe, effective, and comfortable dental treatments that keep your smile healthy for life. If you need a root canal or have concerns about your dental health, don’t hesitate to schedule a consultation with us today.
✔️ Root canals eliminate infection, improving overall health.
✔️ No credible scientific evidence links root canals to cancer.
✔️ Avoiding a root canal when needed can cause severe health problems.
At Prostho Endo Dental, we’re committed to providing safe, effective, and comfortable dental treatments that keep your smile healthy for life. If you need a root canal or have concerns about your dental health, don’t hesitate to schedule a consultation with us today.
Your health is too important to trust misinformation—get the facts, protect your smile, and stay healthy.
Don’t let misinformation keep you from getting the care you need. Trust Prostho Endo Dental for expert root canal treatment that puts your health, comfort, and well-being first.
Don’t let misinformation keep you from getting the care you need. Trust Prostho Endo Dental for expert root canal treatment that puts your health, comfort, and well-being first.
What people are saying
“Jo and Dr Kim made my experience here great. Quick, gentle, and painless, I highly recommend this practice to anybody looking for a detailed and professional endodontist.” – Ahyoung Ko
