Root Canals Are Not What You Think — Here’s the Truth
Root canals have one of the worst reputations in dentistry, but most of that reputation is built on outdated myths. The truth is that a modern root canal procedure relieves tooth pain rather than causing it, and for most patients it feels no more uncomfortable than getting a routine filling. If you’ve been putting off treatment because of fear, this guide will help you understand what a root canal actually involves — and why avoiding one can be far more harmful than having one.
Myth #1: Root Canals Are Extremely Painful
This is the most persistent myth, and it’s simply not accurate. Root canal treatment — formally called endodontic therapy — is performed under local anaesthesia, which numbs the tooth and surrounding tissue completely before any work begins. The pain patients associate with root canals is almost always the pain from the infected pulp tissue that made the procedure necessary in the first place.
The pulp is the soft inner layer of your tooth containing nerves, blood vessels, and connective tissue. When bacteria reach this layer — through deep decay, a crack, or a traumatic injury — the resulting infection causes significant pressure and throbbing pain. The root canal removes that infected tissue, which is what actually ends the pain.
Myth #2: It’s Better to Just Pull the Tooth
Some patients assume that extracting a tooth is a simpler, cheaper, or safer option. In reality, saving your natural tooth is almost always the preferred outcome. Tooth loss sets off a chain of events that can include:
- Bone loss in the jaw where the tooth root once stimulated the surrounding bone
- Shifting of adjacent teeth into the empty space, affecting your bite
- Changes in facial structure over time as the jawbone resorbs
- The need for a dental implant, bridge, or partial denture to restore function — often at greater cost than the original root canal
A successfully treated tooth can last a lifetime with proper care. Endodontic therapy followed by a dental crown protects and restores full function to the tooth without any of the downstream consequences of extraction.
Myth #3: Root Canals Cause Illness
A thoroughly debunked theory from the early twentieth century claimed that root canal-treated teeth could cause systemic illness. Modern dental and medical research has found no credible evidence to support this claim. The Canadian Dental Association and dental organisations worldwide confirm that root canal treatment is safe and effective. In fact, leaving an untreated dental abscess — an active bacterial infection — poses a far greater risk to your overall health than treating it does.
What Does a Root Canal Actually Involve?
Understanding the steps can go a long way toward reducing anxiety. Here’s what typically happens during endodontic therapy:
- Anaesthesia: Local anaesthetic is applied to numb the area completely. IV sedation is also available for patients with significant dental anxiety.
- Access opening: A small opening is made through the top of the tooth to reach the pulp chamber.
- Pulp removal: Infected or inflamed pulp tissue is carefully removed from the pulp chamber and root canals.
- Cleaning and shaping: The canals are disinfected, shaped, and filled with a biocompatible material called gutta-percha.
- Restoration: The tooth is sealed and typically fitted with a dental crown to restore strength and protect it from future fracture.
Most procedures are completed in one or two appointments, and many patients return to their normal routine the same day.
Signs You Might Need a Root Canal
Knowing the warning signs can help you seek care before an infection worsens. Common indicators include:
- Persistent or severe toothache, especially when chewing or applying pressure
- Prolonged sensitivity to heat or cold that lingers after the source is removed
- Darkening or discolouration of the tooth
- Swelling or tenderness in the nearby gum tissue
- A persistent pimple-like bump on the gum (a dental fistula or sinus tract)
If you’re experiencing any of these symptoms, don’t wait. Dental infections do not resolve on their own and can spread to surrounding teeth and tissue if left untreated.
Book Your Appointment at For Your Smile Dental in Calgary NW
At For Your Smile Dental, located at Crowfoot Centre NW in Calgary, our team understands that dental anxiety is real — and we’re committed to making every visit as comfortable as possible. Led by Dr. Christine Kim, we offer root canal treatment alongside IV sedation options for patients who need extra support. We also offer flexible 0% financing to make necessary dental care accessible. If you’re experiencing tooth pain or have been told you may need endodontic therapy, we’re here to help. Call us at 587-330-3000 or book your appointment online at fysmiledental.com — same-day and walk-in appointments are welcome.
Frequently Asked Questions
Are root canals really as painful as people say?
No — root canals are widely misunderstood. The procedure is performed under local anaesthesia, so you should feel no pain during treatment; the discomfort people associate with root canals is actually the pain caused by the infected tooth before the procedure. Most patients report that the root canal itself brings significant relief.
How do I know if I need a root canal?
Common signs that you may need a root canal include a severe or persistent toothache, prolonged sensitivity to hot or cold, a darkened tooth, swollen gums, or a small bump on the gum near the affected tooth. If you're experiencing any of these symptoms, it's best to see a dentist in Calgary as soon as possible, since dental infections don't heal on their own.
Is it safe to delay a root canal if I'm not in a lot of pain right now?
Delaying a root canal is not recommended, even if the pain has subsided. An infected tooth pulp does not heal on its own, and the infection can spread to surrounding bone and tissue, potentially leading to a dental abscess or more serious health complications. Early treatment is almost always simpler and less costly than treating an advanced infection.
How long does a root canal procedure take in Calgary?
Most root canal procedures at a Calgary dental clinic are completed in one or two appointments, each lasting roughly 60 to 90 minutes depending on the tooth and the complexity of the infection. Your dentist will give you a more specific timeline after examining your tooth and reviewing your X-rays.
Can I go to work or school after a root canal?
Most patients feel well enough to return to work or school the same day as their root canal, once the local anaesthesia wears off. Mild soreness around the treated area is normal for a few days and can usually be managed with over-the-counter pain relievers such as ibuprofen.
Is pulling the tooth cheaper and easier than a root canal?
While extraction may have a lower upfront cost, replacing a missing tooth with a dental implant, bridge, or partial denture often costs significantly more in the long run. Losing a tooth also leads to jawbone loss and shifting of surrounding teeth, so saving your natural tooth with a root canal and crown is typically the better long-term investment.
Does For Your Smile Dental in Calgary NW offer sedation for root canals?
Yes — For Your Smile Dental at Crowfoot Centre NW in Calgary offers IV sedation for patients with dental anxiety or those who would prefer a more relaxed experience during their root canal treatment. Call 587-330-3000 or visit fysmiledental.com to discuss your sedation options before your appointment.