Sensitive Teeth Treatment in Ottawa

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Tooth sensitivity usually happens when the softer layer under your enamel, called dentin, becomes exposed. Common causes include receding gums, enamel worn down by hard brushing or grinding, acidic foods and drinks, cavities, cracked teeth and old fillings — and it sometimes follows a cleaning or whitening.

Because sensitivity can signal a problem that needs attention, we start with an exam and X-rays to find the cause. Treatment might be as simple as a desensitizing varnish or fluoride and a change of toothpaste or brushing technique, or it may mean bonding over exposed root surfaces, replacing a leaking filling, treating gum recession or, if the nerve is involved, root canal therapy.

Exams, X-rays, fluoride and fillings are covered by the Canadian Dental Care Plan for eligible patients. We explain your options and any costs before treatment begins.

What's included

Exam and X-rays to find the cause
Desensitizing varnish and fluoride
Bonding over exposed root surfaces
Replacing worn or leaking fillings
Gum-health treatment for recession
Advice on toothpaste and brushing technique

What to expect

1
Find the cause
An exam and X-rays show why your teeth are sensitive.
2
Quick relief
Desensitizing varnish or fluoride can calm sensitivity right away.
3
Fix the problem
We treat the cause — a cavity, a leaking filling, exposed roots or gum recession.
4
Prevent it
Simple changes at home help keep sensitivity from coming back.

Part of our Restorative Dentistry services · Last updated November 2026

Good to know

Sensitive Teeth Treatment — common questions

Still have questions? Our coordinators answer the phone every weekday — really.

Why are my teeth suddenly sensitive?

Sudden sensitivity can come from a new cavity, a cracked tooth, a lost or leaking filling, gum recession or recent whitening. If it lasts more than a few days or is getting worse, book an exam so we can find the cause.

Does sensitive toothpaste work?

For many people, yes — desensitizing toothpaste can reduce sensitivity over a few weeks of regular use. If it does not help, there is likely a cause we should look at, and professional treatments are stronger.

Is tooth sensitivity a dental emergency?

Usually not, but severe or lingering pain, swelling, or sensitivity that wakes you at night can mean the nerve is involved. Call us and we will do our best to see you quickly.