Medically Reviewed by Dr. Jim Meletiou, DDS on September 22, 2026
Root canals carry a reputation that rarely matches the reality of the procedure. Most of what patients fear about root canal treatment comes from outdated stories rather than the modern, comfortable process dentists use today.
At The Smile Architects, we perform root canal treatment regularly for patients throughout Huntersville, and we hear the same handful of myths again and again. Below, we clear up three of the most common misconceptions so you can make an informed decision if a root canal is ever recommended for you.
Myth One: Every Toothache Means You Need a Root Canal
It is a common assumption that any toothache automatically calls for a root canal, but that is not accurate. Sensitivity or inflammation in a tooth can often be reversible and short-lived. A root canal typically becomes necessary only once the nerve and blood vessel tissue inside a tooth has sustained permanent, irreversible damage from a bacterial infection or trauma.
That said, certain signs tend to point toward the need for a root canal, including the following:
- Discomfort from hot or cold foods and drinks that lingers for more than ten seconds
- Pain that appears on its own, even when you are not eating or drinking anything
- Swelling or a small bump in the gum tissue near the tip of a tooth’s root
- A tooth that has darkened in color or feels tender when you bite down
Should any of these symptoms show up, it is best not to brush them aside. Schedule a dental evaluation as soon as you reasonably can, since untreated infections tend to get worse rather than better on their own.
Myth Two: Root Canal Treatment Is Painful
Fear of pain is the biggest reason patients put off a root canal, yet this myth has it backward. A root canal removes the infected or inflamed tissue that is causing your pain in the first place, so most patients feel noticeably better once treatment is complete.
Modern local anesthesia keeps the tooth and surrounding gum tissue completely numb throughout the appointment, and the experience for most patients compares closely to having a cavity filled. If dental anxiety is part of what is holding you back, talk with your dental care team about what to expect before your appointment. Understanding each step in advance can go a long way toward easing that worry.
Myth Three: Root Canals Cause Cancer
This particular myth has picked up traction as a conspiracy theory, with some versions claiming that a large majority of cancer patients have had a previous root canal. Even where a correlation like that might appear in a small or biased sample, correlation is not the same as causation, and no credible research demonstrates that root canal treatment causes cancer.
Any apparent connection is more likely tied to the underlying infection and inflammation that made a root canal necessary in the first place, not to the treatment that clears those problems away. Some research points to a relationship between chronic infection and disease risk elsewhere in the body, which suggests that skipping a needed root canal could work against your health rather than protect it.
What Actually Happens During a Root Canal
According to the American Association of Endodontists, a root canal removes infected or inflamed pulp from inside the tooth, cleans and disinfects the empty space, and seals it to prevent further infection. A crown or filling is then placed over the tooth to restore its strength and function. The entire process is designed to save a tooth that would otherwise likely need to be extracted.
Recovery After a Root Canal
Most patients return to normal activities the same day. Any lingering soreness typically fades within 24 to 48 hours, and an over-the-counter anti-inflammatory such as ibuprofen usually manages it well. You may notice mild tenderness when biting down for a couple of days while the surrounding tissue settles, but this is a normal part of healing rather than a sign that something went wrong. If you are pregnant and dealing with an infected tooth, our article on getting a root canal while pregnant walks through the safety considerations in more detail.
Root Canal Treatment Compared to Extraction
When a tooth is badly infected, the two realistic options are usually a root canal or an extraction. Pulling the tooth may sound simpler, but it creates a gap that neighboring teeth can gradually shift toward, which often leads to bite problems and additional dental work down the road. A root canal, by contrast, keeps your natural tooth root and bone structure intact.
Replacing an extracted tooth with a bridge or an implant also tends to cost more over time than saving the natural tooth with a root canal in the first place. For most patients, keeping the original tooth is the more conservative, and often more affordable, long-term choice.
Frequently Asked Questions About Root Canals
What does a root canal actually involve?
Also known as endodontic treatment, a root canal is a procedure in which infected or inflamed pulp is removed from inside a tooth, the space is cleaned and sealed, and a crown or filling is placed over it to restore strength and protect it from further damage.
Does a root canal hurt?
For most patients, the level of discomfort during a root canal compares to what you would feel with a cavity filling, since the area is fully numbed beforehand. Any soreness afterward typically subsides within 24 to 48 hours.
Do root canals really cause cancer?
No credible research supports this claim. Any apparent link is more likely tied to the underlying infection that made the root canal necessary, not to the treatment itself, which is designed to remove that infection.
What happens if I ignore the signs and skip treatment?
An untreated infection generally continues to spread rather than resolve on its own, which can lead to worsening pain, a dental abscess, and eventually the loss of the tooth. Extraction typically becomes the only remaining option once decay reaches that point.
Can a root canal be performed during pregnancy?
In most cases, yes. Root canal treatment is generally considered safe throughout pregnancy when an infected tooth needs care, and delaying treatment can carry more risk than the procedure itself.
Is a root canal better than pulling the tooth?
For most patients, yes. Saving the natural tooth with a root canal helps prevent nearby teeth from shifting out of place and generally costs less over time than extracting the tooth and later replacing it with a bridge or implant.
Reach Out to The Smile Architects to Learn More About Root Canals
The Smile Architects is committed to helping our patients and the wider Huntersville community understand the dental procedures available to them. Having accurate information puts you in a better position to make sound decisions about your dental health. If you are dealing with tooth pain or think you may need a root canal, contact our office to schedule an evaluation.
About the Author
Dentist, The Smile Architects
Dr. Jim Meletiou is a graduate of the University of Iowa College of Dentistry, where he later taught Oral Diagnosis and Radiology. He brings decades of clinical experience to patients at The Smile Architects in Huntersville, NC.