A dental filling repairs a tooth damaged by decay, restoring its shape, strength and function so you can bite, chew and smile with confidence. For most people in Barrhaven, it is a quick, comfortable, single-visit treatment — and the sooner a cavity is caught, the simpler the repair.
Key Takeaways
- A filling removes decay and rebuilds the tooth, stopping a small problem from becoming a bigger one.
- Tooth-coloured composite is the modern standard — natural-looking, conservative and bonded to your tooth.
- Most fillings are completed in a single, comfortable visit under local anaesthetic.
- Caught early, a cavity is simple to treat; left alone, it can lead to a root canal or extraction.
- Fees follow the Ontario Dental Association fee guide, and we provide a written estimate up front.
What Is a Dental Filling?
A dental filling is a restoration that replaces tooth structure lost to decay. When a cavity forms, bacteria gradually break down the hard outer enamel and the softer dentin beneath it. Left untreated, that decay keeps spreading toward the nerve in the centre of the tooth. A filling stops the process: your dentist gently removes the decayed portion, cleans the area, and fills the space with a durable material that bonds to or seals the remaining healthy tooth.
The goal is twofold — eliminate the active decay and rebuild the tooth so it works and looks like it did before. A well-placed filling restores a natural biting surface, protects the inner tooth from further damage, and, with modern tooth-coloured materials, is virtually invisible. If you would like a focused overview of our restorative options, our dental fillings service page covers the essentials for Barrhaven patients.
Fillings are extremely common. According to the Canadian Dental Association, tooth decay remains one of the most prevalent chronic conditions — which is exactly why early detection at a routine checkup matters so much.
Types of Dental Fillings
Not all fillings are the same. The right material depends on where the cavity is, how large it is, your bite, and your priorities around appearance and budget. Here are the main options you will encounter in Barrhaven.
Composite (tooth-coloured) fillings
Composite resin is the modern standard of care and the material most of our patients choose. It is shade-matched to your natural enamel, bonds directly to the tooth, and lets us preserve more healthy structure during preparation. Because it is placed in thin layers and sculpted to match your tooth's contours, the result is seamless. Learn more on our composite fillings and white fillings pages.
Amalgam (silver) fillings
Silver amalgam was the default for generations and is still durable and cost-effective. Its main drawbacks are appearance — the dark metal is visible — and the fact that more healthy tooth sometimes has to be shaped to lock it in place. Many patients now choose to replace older silver fillings with tooth-coloured composite. For a full side-by-side, see our guide on composite vs. amalgam fillings.
Gold, porcelain inlays and onlays
For larger cavities where a standard filling would leave the tooth weak, a custom-made inlay or onlay (often porcelain) restores more of the tooth while adding strength. When even more of the tooth is compromised, a crown may be the better long-term choice. We will always recommend the most conservative option that will genuinely last.

Signs You Might Need a Filling
Cavities rarely announce themselves with sudden pain — decay develops quietly, and by the time it hurts it has often progressed. Watch for these early warning signs and book a checkup if you notice any of them:
Common signals include lingering sensitivity to hot, cold or sweet foods; a visible white, brown or black spot on a tooth; a rough edge or small hole your tongue catches on; pain when biting down; or food repeatedly getting stuck in the same spot. If you recognise several of these, our article on the ways to prevent cavities can help you protect the rest of your smile, and our cavity treatment page explains how we restore an affected tooth.
Don't wait for pain
The Filling Procedure, Step by Step
Getting a filling is one of the most routine treatments in dentistry, and knowing what to expect makes the visit far less stressful. Here is how a typical appointment unfolds at our Barrhaven practice:
- Numbing. We gently apply a topical gel, then local anaesthetic so the tooth and surrounding area are completely frozen.
- Removing decay. The decayed tissue is carefully removed and the area is cleaned, leaving healthy tooth behind.
- Preparing the tooth. For composite, a bonding agent is applied so the filling adheres securely.
- Placing the filling. Composite is added in layers, each hardened with a curing light, then sculpted to match your tooth.
- Checking your bite & polishing. We adjust the filling so your bite feels natural and polish it smooth.
For a deeper, reassuring walkthrough — including how the freezing feels and how to recover afterward — read our dedicated guide on what to expect when getting a filling.

When You Might Need More Than a Filling
A filling is the right answer for most cavities, but not all of them. When decay or damage has progressed beyond a certain point, rebuilding the tooth with a simple filling would leave it too weak to last. Knowing the alternatives helps you understand why your dentist might recommend a different treatment — and why catching problems early keeps you in "simple filling" territory.
Inlays and onlays
When a cavity is too large for a direct filling but the tooth is otherwise healthy, a custom-made inlay or onlay can be the ideal middle ground. Crafted in a lab (often from durable porcelain) and bonded into place, these restorations rebuild more of the tooth while adding strength a large filling cannot.
Dental crowns
If decay has destroyed a significant portion of the tooth — or the tooth is cracked — a dental crown caps and protects what remains, restoring full function. Crowns are often the long-term answer for heavily restored back teeth that take the brunt of chewing forces.
Root canal therapy
When decay reaches the nerve inside the tooth, a filling alone cannot save it. A root canal removes the infected tissue and relieves the pain, after which the tooth is usually restored with a crown. This is exactly the scenario early treatment helps you avoid — another reason not to ignore a small cavity.
In rare cases where a tooth cannot be saved, a tooth extraction followed by a replacement such as a dental implant may be recommended. The takeaway is simple: the earlier a cavity is caught, the more likely a quick, affordable filling is all you will ever need.
What Fillings Cost in Barrhaven
The honest answer is that cost depends on the cavity. A small one-surface filling is far less involved than a large multi-surface restoration, and the material matters too. In Ontario, fees follow the annually published Ontario Dental Association fee guide, which keeps pricing transparent and consistent between practices. The ranges below are general estimates to help you plan — your exact fee is confirmed in a written estimate before any treatment begins.
| Treatment | Typical Range* |
|---|---|
| Small composite fillingsingle surface | $150 – $250 |
| Medium composite fillingtwo surfaces | $200 – $350 |
| Large composite fillingthree or more surfaces | $300 – $450 |
| Inlay / onlaylab-made, larger restorations | $700 – $1,500 |
Worried about budget? You have options. We can bill most insurance plans directly, and we offer flexible dental financing to spread out the cost of care. For a full breakdown including insurance and the Canadian Dental Care Plan, see our guide to dental filling costs in Ottawa.
Aftercare & Making Fillings Last
One of the conveniences of modern composite is that it hardens completely before you leave the chair, so you can usually eat and drink soon after — though you may want to wait until the freezing wears off to avoid biting your cheek or tongue. Mild sensitivity to temperature for a few days is normal and typically settles on its own.
To help your fillings last as long as possible:
- Brush twice daily with fluoride toothpaste and floss once a day.
- Keep up with regular cleanings and checkups so we can spot wear early.
- Limit sugary and acidic snacking, which feeds the bacteria that cause decay.
- Wear a nightguard if you grind your teeth — clenching shortens the life of any restoration.
- Call us promptly if a filling feels rough, cracked or sensitive for more than a couple of weeks.
It is worth remembering that a filling repairs the damage decay has already done, but it does not change the conditions that caused the cavity in the first place. The same habits that protect your natural teeth — consistent brushing and flossing, sensible snacking, and routine professional cleanings — are exactly what protect your fillings too. Think of each filling as a fresh start for that tooth: with good day-to-day care and regular visits so we can catch any wear early, there is no reason a well-placed filling cannot serve you quietly and reliably for a decade or more.
Our practice is the long-standing local clinic family dental clinic in Barrhaven that Barrhaven Dental Fillings is proud to be part of, located at 3350 Fallowfield Rd #6. Whether you are due for a checkup, think you have a cavity, or want to replace older silver fillings, we are here to help. Call (343) 313-1531 or book a consultation and we will give you a clear, honest recommendation tailored to your smile.
Frequently Asked Questions
How long does a dental filling take in Barrhaven?
Most single fillings take about 20 to 60 minutes from freezing to final polish. Smaller cavities are quicker, while larger restorations or several fillings in one visit take a little longer. We always work at a pace that keeps you comfortable.
Are white composite fillings as strong as silver amalgam?
Modern composite resin is highly durable and, when placed correctly and cared for at home, lasts many years on the chewing surfaces most cavities affect. For very large cavities we may recommend an inlay, onlay or crown for added strength, which we will explain at your consultation.
Does getting a filling hurt?
The area is fully numbed with local anaesthetic first, so you should feel pressure and movement but not pain. If you experience dental anxiety, let our Barrhaven team know — we offer extra time, clear explanations and gentle techniques to keep the visit calm.
How much do dental fillings cost in Barrhaven?
Fees follow the current Ontario Dental Association (ODA) fee guide and depend on the size and location of the cavity and the material used. We provide a clear written estimate before any treatment begins and can bill most insurance plans directly.
How long do dental fillings last?
With good home care and regular checkups, composite fillings commonly last anywhere from 7 to 10 years or more. Longevity depends on the size of the filling, your bite, grinding habits and oral hygiene.
Can a cavity be treated without a filling?
Very early decay that has not yet broken through the enamel can sometimes be slowed or remineralised with fluoride and improved home care. Once a cavity forms a hole, a filling is the standard way to repair the tooth and stop the decay from spreading.
Ready to care for your smile?
Book a consultation with the gentle team at Barrhaven Dental Fillings — honest advice and modern, comfortable care.