What Is The Cost Of A Dental Filling In Ontario?
Understanding the cost of dental care is essential for maintaining both your oral health and your financial well-being. For residents of Ontario, Canada, the price of a dental filling can be a source of confusion. This is because Ontario does not have a universal public dental plan for most adults. Instead, costs are set by private dentists and are often influenced by insurance coverage. This guide will break down the cost of a dental filling in Ontario, explain the province’s fee guide, and outline the factors that determine what you will pay.

The Ontario Dental Fee Guide
In Ontario, there is no government-mandated price for dental services. However, the Ontario Dental Association (ODA) publishes an annual “Suggested Fee Guide” for dentists. This guide is a set of recommended prices for every dental procedure, from a simple check-up to a complex surgery.
The fee guide is designed to provide a framework and a baseline for costs. Most dentists in Ontario use this guide as a reference point for their own pricing. However, dentists are private business owners and are free to set their own fees. Some dentists charge exactly what the guide suggests, while others may charge more or less depending on their location, overhead costs, and experience.
It is crucial to understand that the fee guide is not a guarantee of price. You should always ask your dentist for a detailed estimate before proceeding with any treatment. The suggested fees are a powerful tool for patients to understand what is considered a “standard” cost in their region.
The Average Cost of a Dental Filling in Ontario
Using the ODA fee guide as a reference, the cost of a dental filling in Ontario can vary significantly based on the size, complexity, and material used. You can expect to pay anywhere from CAD $150 to CAD $600 for a single filling.
This is a broad range, and the price is determined by the specific codes a dentist uses when billing. A filling is not just a single line item. Dentists charge for the number of “surfaces” of a tooth that need to be restored.
- A one-surface filling, for example, on the flat biting surface of a tooth, is the least expensive.
- A two-surface filling, which might extend between two teeth, costs more.
- A complex filling that covers three or more surfaces is the most expensive.
The type of material also affects the price. Tooth-coloured composite (white) fillings are now the standard for most patients and are more expensive than traditional amalgam (silver) fillings.
Cost Breakdown by Filling Type and Size
To give you a practical understanding of the costs, here is a table showing the approximate fees for different types of fillings, based on common ODA fee guide figures.
| Type of Filling | Description | Approximate Cost (CAD) |
|---|---|---|
| Amalgam (Silver) – One Surface | A small silver filling on a single surface of a back tooth. | $150 – $200 |
| Amalgam (Silver) – Two Surfaces | A silver filling that covers two surfaces, often between the teeth. | $200 – $280 |
| Composite (White) – One Surface | A small tooth-coloured filling on a single surface. | $180 – $250 |
| Composite (White) – Two Surfaces | A tooth-coloured filling that covers two surfaces. | $250 – $350 |
| Composite (White) – Three or More Surfaces | A large, complex white filling used to rebuild a significant part of a tooth. | $350 – $600+ |
Important Note: These are estimated costs based on typical fees. A complex filling in a downtown Toronto dental office could cost more than a similar filling in a smaller city like London or Windsor. Always request a pre-treatment plan.
Factors That Influence the Cost
Several key factors will influence the final cost of your filling in Ontario beyond the type and size.
1. The Dentist’s Location
This is a major factor. Dental practices in major urban centres like Toronto, Ottawa, and Mississauga have high commercial rents and higher staff salaries. These operating costs are passed on to the patient. You will often find that dentists in smaller towns or rural areas have lower fees.
2. The Clinic’s Overhead and Amenities
A modern clinic with the latest technology, such as digital X-rays and intraoral cameras, may have higher fees to cover the cost of this equipment. Similarly, clinics that invest in patient comfort amenities, like massage chairs or entertainment systems, often charge a premium.
3. The Dentist’s Experience and Specialisation
A general dentist with many years of experience may charge more than a recent graduate. If you are referred to a specialist, such as a prosthodontist for a very complex restoration, the fees will be significantly higher.
4. Diagnostic Requirements
Before you get a filling, the dentist will need to examine the tooth. This almost always involves an X-ray to assess the extent of the decay. The cost of the examination and the X-ray is separate from the cost of the filling. A new patient exam can cost between $100 and $200, and a single X-ray can cost between $25 and $50.
The Role of Dental Insurance in Ontario
Most people in Ontario access dental care through private insurance, usually provided by their employer. Understanding how your insurance works is vital to understanding your out-of-pocket costs.
- Coverage Amount: Most plans cover a percentage of the cost of basic services like fillings. A common structure is 80% coverage, meaning your insurance pays for 80% of the filling cost (based on their fee guide, which may differ from your dentist’s), and you pay the remaining 20% plus any difference in fees.
- Annual Maximums: Your plan will have an annual maximum limit, often between $1,000 and $2,500 per person per year.
- Deductibles: Some plans have an annual deductible, which is an amount you must pay out-of-pocket before your coverage kicks in.
A Practical Example:
Imagine you need a two-surface white filling. Your dentist charges $300.
Your insurance plan covers 80% of basic services, based on the current ODA fee guide, which lists the procedure at $280.
Your insurance will pay 80% of $280, which is $224.
You are responsible for the remaining 20% of the guide price ($56) plus the difference between your dentist’s fee and the guide price ($20).
Your total out-of-pocket cost is $76.
What About Government Programs?
While most adults rely on private insurance, Ontario does offer some publicly funded dental programs for specific populations.
- Healthy Smiles Ontario: This program provides free dental care for children and youth 17 years old and under from low-income households. It covers a wide range of services, including fillings.
- Ontario Seniors Dental Care Program (OSDCP): This is a relatively new program that provides free, routine dental care for low-income seniors aged 65 and over. It covers check-ups, cleanings, and fillings.
- Ontario Disability Support Program (ODSP): Adults receiving support through ODSP may be eligible for dental benefits.
If you do not have insurance, you are responsible for the full cost of your dental care. It is essential to discuss fees with your dentist upfront.
How to Save Money on Fillings in Ontario
Dental care can be expensive, but there are practical steps you can take to manage costs.
- Prioritise Preventive Care: The cheapest filling is the one you never need. Brush and floss daily, and see your dentist for regular check-ups and cleanings. Catching a small cavity early means a smaller, cheaper filling.
- Get a Written Estimate: Before any work begins, ask your dentist for a detailed treatment plan with a cost breakdown. This will prevent surprises and allow you to plan your finances.
- Ask About Payment Plans: Many dental offices offer third-party financing options, such as payment plans through companies like Dentalcard or iFinance, allowing you to spread the cost over several months.
- Research Dental Schools: If you are near a major city, consider treatment at a dental school like the University of Toronto Faculty of Dentistry or Western University. Students provide care under strict supervision at significantly reduced rates.
- Look for Community Dental Clinics: Some municipalities and public health units offer dental services for low-income residents on a sliding fee scale.
Frequently Asked Questions (FAQ)
Q: Are white fillings more expensive than silver fillings in Ontario?
A: Yes. Composite (white) fillings require more time, skill, and more expensive materials than amalgam fillings. As a result, they are generally 20-50% more expensive per surface.
Q: Does OHIP (Ontario Health Insurance Plan) cover dental fillings?
A: No. OHIP does not cover routine dental care for most adults. It only covers some dental surgeries that are performed in a hospital setting for medical reasons.
Q: How long does a filling take?
A: A simple filling typically takes 30 to 60 minutes. A large, complex filling may take longer, and your dentist may schedule a longer appointment.
Q: How long do fillings last?
A: With good care, an amalgam filling can last 10-15 years or more. A composite filling typically lasts 5-10 years before it may need to be replaced due to wear or staining.
Q: What if I cannot afford a filling?
A: If you are in pain or have an infection, this is considered an urgent situation. Call your local public health unit or the nearest dental school to inquire about low-cost or emergency services.
Additional Resource
For more information on government dental programs and finding low-cost dental care in Ontario, you can visit the official website of the Ontario Dental Association: www.oda.ca.
Conclusion
The cost of a dental filling in Ontario ranges from CAD $150 to over $600, influenced by the filling’s size, material, and the dentist’s location. Since there is no universal public plan for most adults, understanding your private insurance and the ODA fee guide is crucial. By prioritising prevention and asking for clear estimates, you can navigate the cost of dental care effectively and maintain a healthy smile.


