5 Myths About Root Canals: What You Need to Know
We separate fact from fiction on root canal treatment, covering pain, tooth preservation, general health, symptoms and how long a treated tooth lasts.
“Root canal” might be the two scariest words in dentistry, and we hear the same worries on repeat across our clinics: from Ingham to Emerald. Most of what people believe about the procedure is decades out of date. Before you put off a visit because of something you heard from a friend (or Dr Google), let’s work through the five myths that come up most often.
Myth 1: Root canals are painful
This is the big one, and it has it backwards. In most cases, the pain patients associate with root canals is actually the infection or inflamed nerve that made the treatment necessary in the first place, not the treatment itself. With modern local anaesthetic and technique, the procedure itself is generally no more uncomfortable than having a filling placed. If you’re anxious about it, tell your dentist beforehand; there are ways to make the appointment easier, and simply talking it through often takes the edge off.
Myth 2: It’s better to just pull the tooth
Extraction can feel like the simpler option, but keeping your natural tooth is almost always the better long-term move. Once a tooth is removed, the teeth either side can start to drift into the gap, your bite can shift, and the jawbone in that area can begin to lose density over time. Replacing a missing tooth later with an implant or bridge is a bigger job than the root canal would have been. This matters particularly for our older patients in towns like Bowen, where keeping the teeth you have is usually the more comfortable and more cost-effective path than starting again with a replacement.
Myth 3: Root canals cause disease elsewhere in the body
This myth traces back to research from the early 1900s that has since been discredited. There’s no accepted scientific evidence linking root canal treatment to disease elsewhere in the body. Root canal therapy exists specifically to remove infected or dead tissue from inside the tooth and seal it off, which reduces the infection risk rather than spreading it. If you’ve read something alarming online about this, it’s worth raising with your dentist directly rather than avoiding treatment.
Myth 4: If it doesn’t hurt, you don’t need one
A tooth’s nerve can die quietly. Once that happens, you may not feel the sharp pain you’d expect, but that doesn’t mean nothing is wrong. Watch for a tooth that’s darkened or discoloured compared to its neighbours, gum swelling or a small pimple-like bump near the tooth, or lingering sensitivity to hot and cold that doesn’t settle. This is one reason regular check-ups matter as much as how your teeth feel day to day. It’s a particular consideration in Ingham, where the town water supply isn’t fluoridated, so we tend to see a higher rate of decay-related issues and lean more heavily on check-ups and diet advice to stay ahead of problems before they progress to nerve damage.
Myth 5: A treated tooth won’t last
With a well-placed protective crown afterwards and reasonable oral hygiene, a root-canal-treated tooth can go on serving you for many years. The crown protects the tooth from fracturing under everyday biting force, since a tooth that’s had root canal treatment can become more brittle over time. Skipping the crown, or letting oral hygiene slip, is what usually shortens the outcome, not the root canal treatment itself.
Why timing matters
For our busy Emerald families juggling mining rosters and school runs, or Bohle Plains and Kirwan households with young kids and full calendars, it’s tempting to push a niggling tooth down the priority list. But nerve infections don’t resolve on their own, and waiting generally only narrows your options, sometimes turning a straightforward root canal into a more urgent, more involved appointment. If a tooth is aching, sensitive, or just doesn’t feel right, getting it looked at early is usually the simpler path.
What Root Canal Treatment Actually Involves
Some of the fear around root canals comes from not knowing what happens. The process is more ordinary than its reputation.
The tooth is numbed with local anaesthetic first, so the treatment itself feels much like having a filling: pressure and vibration rather than pain. A small opening is made through the top of the tooth to reach the pulp chamber, and the infected or dead nerve tissue is removed from inside the canals.
The canals are then cleaned and shaped with fine instruments, and disinfected. This is the part that takes the time, particularly on a molar with several canals that curve. The space is dried and sealed with a rubber-like filling material so bacteria cannot recolonise it, and the access opening is closed.
If the infection is significant, an antibacterial dressing may be left inside the tooth and the appointment split, which is why treatment is often two visits rather than one. Finally, a crown is usually fitted on a back tooth to stop it splitting under chewing forces.
What you keep at the end is your own tooth, in its own socket, with your own root holding it in the bone. That is the entire argument for the treatment: no replacement, however good, does that job as well as the original.
Talk to us about your tooth
If you’re dealing with tooth pain, sensitivity, or you’ve noticed a tooth changing colour, don’t wait it out based on something you’ve read online. Our dentists can assess the tooth, explain your options clearly, and give you a written quote before any treatment goes ahead: many health funds cover part of the cost, and eligible rebates can often be processed on the spot through HICAPS. Learn more about root canal treatment or find your nearest clinic (Ingham, Innisfail, Bohle Plains, Kirwan, Bowen or Emerald) on our clinics page. You can also reach out via contact us to book an appointment.
This article is general information only and is not a substitute for personalised advice from your dentist.
Frequently asked questions
Generally no. Both are done under local anaesthetic, so neither should hurt at the time. The difference shows up afterwards: an extraction leaves a surgical wound and a gap that will eventually need filling with a bridge or implant, while a treated tooth is usually just tender for a few days. Most of the pain people associate with root canals is the infection that led to it.
Often two, sometimes more, depending on the tooth and whether the infection needs time to settle. Front teeth have a single canal and are quicker; back molars can have three or four and take longer. A crown usually follows to protect the tooth, which adds further visits. If you are travelling in from out of town, tell us so appointments can be grouped.
Usually, on a back tooth. A tooth that has had root canal treatment has lost its blood supply and is more brittle, and back teeth carry heavy chewing loads. A crown protects against the split that would otherwise mean losing the tooth entirely. Front teeth can sometimes be restored with a filling instead.
There is no fixed figure, but a well-treated tooth that is properly restored and kept clean can serve for many years. The two things that shorten it are delaying the crown on a back tooth, and neglecting the gum around it. Like any tooth, it still needs check-ups, since a treated tooth can still develop decay at the margins.
The infection does not resolve on its own. It progresses through the root and into the bone, which can form an abscess, cause facial swelling, and in serious cases become a medical emergency. Pain often disappears for a while when the nerve dies, which people mistake for improvement. It is not.
Have a question about your own situation?
Book a visit with your local My Family Dental team across North Queensland. We’ll assess your teeth, explain your options, and answer your questions.