Root canal treatment in Waterloo.
A root canal is how a badly infected tooth gets to stay in your mouth. It has a worse reputation than it deserves — here is what really happens.
Is this you?
You have a deep, throbbing ache
Pain that lingers after hot or cold, throbs when you lie down, or wakes you at night often means the nerve inside the tooth is inflamed or infected. That kind of pain rarely settles on its own.
There is a bump on the gum
A small pimple-like swelling near a tooth is usually infection draining from the root. It may come and go and it may not hurt much, but it means something inside the tooth needs treating.
A tooth has changed colour
A single tooth turning grey or darker than its neighbours often means the nerve inside has died, sometimes years after a knock. It can cause no discomfort at all and still need treatment.
You were told the decay is deep
Sometimes decay reaches the nerve and a filling alone will not settle it. If that is a possibility we will tell you before we start, so a root canal is never a surprise mid-appointment.
How it works here
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X-ray and testing
We X-ray the tooth and test how the nerve responds to cold and to tapping. This tells us whether the nerve is inflamed, infected, or dead, and whether the tooth is worth saving. If it is not, we will say so and talk about removal instead.
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Numbing, properly
An infected tooth can be harder to freeze, so we take time over this and check you are numb before starting. If you feel anything sharp at any point, tell us and we stop and add more. You should not be enduring this appointment.
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Cleaning the canals
A small opening is made in the crown of the tooth, and the infected tissue inside the root canals is removed and the canals cleaned and shaped. A rubber sheet keeps the tooth dry and isolated. Most of this appointment is quiet, careful work — you will feel vibration rather than pain.
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Sealing and a temporary filling
The cleaned canals are filled and sealed so bacteria cannot get back in, and a temporary filling closes the opening. Some teeth are done in a single visit; others need a second appointment if the infection needs time to settle.
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A crown, usually
A tooth that has had a root canal is more brittle than it was, especially a back tooth that takes chewing force. Most need a crown afterwards to stop them splitting. We will tell you at the planning stage whether yours does, so the full cost is clear from the start.
What it costs
The fee depends on which tooth it is — front teeth have one canal, back molars often have three or four, and that changes the time involved. A crown afterwards is a separate cost, and we will quote both together so there is no second surprise.
What's included:
- Exam, X-ray, and nerve testing
- Local anaesthetic
- Cleaning, shaping, and sealing the canals
- Temporary filling
- A written estimate covering the crown, if you need one
You'll always receive a written estimate before treatment begins. See all fees & coverage
What to expect at Auburn Centre Dental
The appointment is long rather than dramatic. You are lying still with your mouth open for a while, which is the part most people actually find tiring, so we build in breaks and tell you how far along we are.
If the tooth has been keeping you awake, the relief usually comes quickly once the nerve is out. Some tenderness to bite on for a few days afterwards is normal.
Questions people actually ask
Is a root canal as bad as people say?
The reputation comes from a time before modern anaesthetic and instruments. Today the appointment itself feels similar to having a deep filling done — pressure, vibration, and a long time with your mouth open.
The pain people associate with root canals is usually the infection that led to it, not the treatment. That pain is what the appointment is fixing.
We are not going to tell you it is nothing. It is a long appointment and your jaw will be tired. But it should not be sharp, and if it is, we stop.
Why not just pull the tooth?
Sometimes that is the better answer, and we will tell you when it is. But your own tooth, kept in place, does a job no replacement quite matches, and it keeps the teeth either side from drifting.
An extraction is usually cheaper on the day. Once you add replacing the tooth with an implant or a bridge, saving it is often the less expensive path overall. We will put both sets of numbers in front of you.
How many appointments will it take?
Many root canals are completed in one visit of about an hour to ninety minutes. Some need two, particularly if there is a lot of infection to settle first or the tooth has several curved canals. We will give you a realistic answer after the X-ray rather than an optimistic one.
How long will the tooth last afterwards?
A root-treated tooth that is properly sealed and crowned can last for decades. The two things that shorten that are leaving it without a crown when it needs one, and decay starting again at the edges.
It still needs brushing, flossing, and regular checks like any other tooth — a treated root does not make it immune to decay.
Will I need antibiotics?
Usually not. Antibiotics do not clear an infection inside a tooth, because there is no blood supply left in there for them to reach — cleaning the canals is what treats it.
We prescribe them when the infection has spread into the surrounding tissue, with facial swelling or fever. If you have swelling that is spreading, or trouble swallowing or breathing, treat that as urgent and call us or go to an emergency department.
Can I go back to work afterwards?
Most people do. Your lip and tongue will be numb for a few hours, so eating is awkward and you will want to avoid chewing on that side until the freezing wears off. Expect the tooth to feel tender to bite on for a few days.
Is it covered by CDCP or insurance?
Root canal treatment is a covered service under the Canadian Dental Care Plan, and we bill CDCP directly. Private plans generally cover it as a major service, often at a lower percentage than fillings.
Coverage for the crown afterwards may sit in a different category with its own limit, which is worth checking before you start. Bring your details and we will work it out with you — see fees and coverage.