Cost is one of the first things people think about when they need a filling — and one of the hardest things to find a straight answer to online. Let's fix that. Here is an honest, transparent breakdown of what dental fillings cost in Ottawa, why prices vary, and how to keep care affordable.
Key Takeaways
- Most fillings in Ottawa range from about $150 to $450 depending on size and material.
- Fees follow the Ontario Dental Association (ODA) fee guide for transparency and consistency.
- Size, number of surfaces, location and material are the biggest cost factors.
- Most insurance covers 50–80% of fillings; we can bill insurers directly.
- The Canadian Dental Care Plan and in-house financing can make treatment affordable.
The Short Answer
In the Ottawa area, a typical dental filling costs somewhere between roughly $150 and $450. A small, single-surface composite filling sits at the lower end, while a large multi-surface restoration sits at the higher end. Lab-made inlays and onlays for very large cavities cost more. These are planning estimates — the only way to know your exact fee is an exam, after which we provide a clear written estimate before any treatment begins.
What Affects the Cost of a Filling
Several factors determine where your filling lands in that range:
Size and number of surfaces
Teeth have multiple surfaces, and fillings are priced partly by how many are involved. A cavity affecting one surface is quicker and less expensive than one wrapping around two or three surfaces, which takes more time, material and skill to restore properly.
Location of the tooth
Back molars do the heavy lifting of chewing and can be harder to access, which can affect the fee. Front teeth require meticulous shade-matching and sculpting for a seamless cosmetic result.
Material
Tooth-coloured composite typically costs a little more than silver amalgam because it takes more time and technique to place. For the full trade-offs, see our comparison of composite vs. amalgam fillings.
How deep the decay has gone
A shallow cavity caught at a checkup is the simplest, least expensive scenario. If decay has reached close to the nerve, the tooth may need additional steps — a protective liner, or in some cases root canal therapy followed by a crown. This is the single biggest reason early treatment saves money: the deeper the problem, the more involved (and costly) the fix becomes.
Number of fillings in one visit
If you need several fillings, we can often complete more than one in a single appointment, which saves you time and repeat trips. Each filling is still priced individually according to its size and surfaces, but we will lay the full plan out for you in writing so you can see exactly what to expect before we begin.

Typical Filling Cost Ranges
The table below gives general ranges to help you plan. Your exact fee follows the current ODA fee guide and is always confirmed in writing first.
| Treatment | Typical Range* |
|---|---|
| Small composite fillingsingle surface | $150 – $250 |
| Medium composite fillingtwo surfaces | $200 – $350 |
| Large composite fillingthree or more surfaces | $300 – $450 |
| Silver amalgam fillingwhere appropriate | $130 – $300 |
| Inlay / onlaylab-made, larger restorations | $700 – $1,500 |
A small filling now beats a big bill later
The ODA Fee Guide Explained
Ontario is unusual in a helpful way: the Ontario Dental Association publishes a suggested fee guide every year. It standardises how procedures are coded and priced, which keeps costs transparent and broadly consistent between practices. When an insurance company calculates your coverage, it generally references this guide too. So when we quote a fee, it is grounded in a recognised provincial standard — not an arbitrary number.
It is worth noting that the fee guide is a suggestion, not a fixed price list, so fees can vary modestly from one practice to another. What it gives you is a reliable benchmark: if a quote is wildly higher or lower than the guide for the same procedure code, that is a reasonable prompt to ask why. We are always happy to walk you through the codes on your estimate so you understand exactly what each line represents and how it compares.
What's Included in the Fee
When you compare prices between clinics, it is worth understanding what actually goes into the fee for a filling — because the cheapest quote is not always the best value. A well-placed filling is a small piece of dentistry done carefully, and several things are bundled into that single number.
- The dentist's time and expertise in removing decay precisely and shaping the restoration so your bite feels natural.
- Quality materials — modern bonded composite and the bonding agents that seal the tooth against future decay.
- Local anaesthetic and infection control to keep the visit comfortable and safe.
- Finishing and polishing, plus a bite check so the filling lasts and feels right.
A bargain filling that fails early — or that traps decay because it was rushed — can end up costing far more in repeat treatment, a root canal or a crown down the road. Value, not just price, is what protects your wallet over the long run.

There is also a difference between a quoted price and your actual out-of-pocket cost, and the two can be far apart. The fee for the filling itself is only part of the picture: any diagnostic x-rays, the exam that found the cavity, and your insurance coverage all shape what you ultimately pay. A clinic that bills your insurer directly, explains your remaining portion up front, and itemises each procedure code is giving you something genuinely valuable — predictability. Hidden add-ons and vague "we'll sort it out after" estimates are where unwelcome surprises tend to hide, so it is always fair to ask for the full breakdown before you agree to treatment.
It helps to keep the numbers in perspective, too. Compared with most of the dentistry that can follow neglected decay — a crown, a root canal, or an extraction and replacement — a filling is among the most affordable investments you can make in your long-term oral health. Spread across the many years a good filling lasts, the real cost per year is genuinely small. When you weigh the modest fee of treating a cavity early against both the financial and the comfort cost of letting it progress, a timely filling is almost always the most economical choice you can make.
Insurance & the Canadian Dental Care Plan
Most private dental plans cover fillings as a basic restorative service, frequently reimbursing 50 to 80 percent after any deductible, up to your annual maximum. We can bill most insurers directly, so you typically pay only your portion at the appointment. Bring your plan information to your visit and our team will help you understand exactly what is covered. Our insurance and direct billing page explains the process in detail.
If you do not have private insurance, the Canadian Dental Care Plan (CDCP) is a federal program that helps eligible residents access dental care, including fillings, based on household income and other criteria. Check the official Canada.ca page for current eligibility, and our team is happy to help you understand how it may apply to your care in Barrhaven.
Making Care Affordable
Cost should never be the reason a small cavity becomes a big problem. Beyond insurance and the CDCP, we offer flexible financing that lets you spread payments over time, and we will always help you prioritise the most urgent treatment first.
Never skip care over cost
The Hidden Cost of Waiting
When a small cavity is found, it can be tempting to put off treatment to save money in the short term. In almost every case, this backfires. Tooth decay does not pause or heal on its own — it spreads. A problem that costs a modest filling fee today can quietly grow into something far more expensive over the months that follow.
The progression is predictable. A small cavity treated early needs only a simple filling. Left alone, that same decay reaches deeper into the tooth and may require a larger filling, then a crown, and eventually root canal therapy if it reaches the nerve. At each step the treatment becomes more involved, more time-consuming and significantly more costly — a root canal and crown can cost many times what the original filling would have.
There is a comfort cost too. Early decay is usually painless, while advanced decay can mean toothache, infection and an unplanned emergency visit. Treating a filling promptly is almost always the cheapest, easiest and most comfortable path — which is exactly why regular checkups that catch decay early are such good value.
Smart Questions to Ask About Cost
Being an informed patient is the best way to avoid surprises. Whether you are visiting us or comparing clinics, these are sensible questions to ask before treatment begins:
- Can I have a written estimate before you start, with the procedure codes listed?
- What material are you recommending, and why is it the best choice for this tooth?
- Will you bill my insurance directly, and what will my out-of-pocket portion be?
- Are there financing options if I need to spread the cost?
- What happens — and what does it cost — if the cavity turns out to be deeper than it looks?
A good clinic will welcome these questions. As a comprehensive dental practice in Barrhaven, we believe a transparent estimate and a no-pressure conversation about your options is simply part of good care. For the bigger picture on materials and the procedure itself, read our complete guide to dental fillings, then call (343) 313-1531 or book a consultation. We are located at 3350 Fallowfield Rd #6, Barrhaven.
Frequently Asked Questions
How much does a dental filling cost in Ottawa?
Most fillings in Ottawa fall between roughly $150 and $450 depending on the size, number of surfaces and material. Fees follow the Ontario Dental Association fee guide, and we always provide a written estimate before treatment so there are no surprises.
Why do filling prices vary so much?
The biggest factors are the size and location of the cavity, how many tooth surfaces are involved, and the material used. A small single-surface composite filling is much simpler than a large multi-surface restoration, so the fees differ accordingly.
Does insurance cover dental fillings?
Most dental insurance plans cover a portion of fillings, often 50 to 80 percent after any deductible, up to your annual maximum. We can bill most insurers directly so you only pay your share at the appointment. Bring your plan details and we will help you understand your coverage.
What is the Canadian Dental Care Plan (CDCP)?
The Canadian Dental Care Plan is a federal program that helps eligible residents without private insurance access dental care, including fillings. Eligibility is based on family income and other criteria. Check the official Canada.ca site for current details and we can help you understand how it may apply.
What if I can't afford a filling right now?
Please talk to us — delaying treatment usually makes the problem (and the cost) bigger. We offer flexible financing options and can help you prioritise treatment, so cost does not stand between you and a healthy smile.
Ready to care for your smile?
Book a consultation with the gentle team at Barrhaven Dental Fillings — honest advice and modern, comfortable care.