Dental Fillings in Mississauga: Cavity Treatment
A cavity caught early is one of the simplest, most affordable problems in dentistry to fix. We use modern, tooth-colored materials that blend naturally with your smile, usually completed in a single visit.
Left untreated, that same small cavity can grow into a root canal or extraction. Dental fillings Mississauga patients receive at our clinic restore full chewing strength comfortably. At Eglinton Oak Dental, we use tooth-colored composite fillings for a natural, long-lasting result.
What It Is
What is a dental filling?
A dental filling repairs a tooth damaged by decay (a cavity) by removing the decayed portion and filling the resulting space with a durable material, restoring the tooth’s shape, strength, and function. Fillings are also sometimes used to repair minor chips or cracks, even without decay present. At our Mississauga clinic, we use tooth-colored composite resin for the large majority of fillings — a material that bonds directly to the tooth and is shaded to match your natural enamel, so the repair is virtually invisible.
Warning Signs
Signs you might need a filling
Temperature Sensitivity
Sensitivity to hot, cold, or sweet foods that wasn’t there before.
Visible Dark Spots
Dark spots or holes on the tooth surface, sometimes visible in a mirror.
Rough or Catching Feel
A rough texture noticed when running your tongue over a tooth.
Pain When Chewing
Mild to moderate pain when biting down on a specific tooth.
Food Trapping
Food regularly getting stuck in the same spot between teeth.
No Symptoms at All
Many early cavities are only found during a routine checkup and X-ray.
What happens during a filling appointment
- Local anesthesia: the tooth and surrounding gum are numbed so the procedure is pain-free
- Removing decay: the decayed portion of the tooth is carefully removed
- Preparing the tooth: the cavity is cleaned and prepared to hold the filling
- Placing the composite: the tooth-colored material is applied in layers and shaped
- Curing: a special light hardens each layer of the composite material
- Polishing & bite check: polished smooth with a comfortable, even fit
Most fillings take 20–40 minutes per tooth and are completed in a single visit, with no lasting downtime.
Materials
Composite (tooth-colored) vs. amalgam (silver) fillings
Older silver amalgam fillings are durable but visibly dark and require removing slightly more healthy tooth structure to place securely. Modern tooth-colored composite fillings bond directly to the remaining tooth structure, meaning less healthy tooth needs to be removed, and the result blends naturally with your smile rather than showing a dark filling when you laugh or talk. Composite is now the standard choice for the vast majority of fillings, particularly on visible front and side teeth.
Think You Might Have a Cavity?
Rated 4.8★ by 320+ Mississauga patients. Fill in the quick form below and we’ll call you back, or call 905-607-1112 to book your visit.
Investment
How much do dental fillings cost in Mississauga?
These figures roughly follow the Ontario Dental Association fee guide. Most employer dental insurance plans cover fillings as a “basic” service, typically at 70–100%. If you don’t have private insurance, the Canadian Dental Care Plan (CDCP) covers eligible children, seniors, and adults for fillings and related exams, subject to income eligibility.
What happens if a cavity is left untreated?
Untreated decay doesn’t stay contained — it continues to spread deeper into the tooth, eventually reaching the nerve and causing significant pain, infection, and often the need for a root canal or extraction rather than a simple filling. What could have been a $150–$220 filling can turn into a $600+ root canal (plus a crown) if left too long.
Preventing future cavities
Brushing twice daily with fluoride toothpaste, flossing daily, limiting frequent sugary or acidic snacks and drinks, and keeping up with regular cleanings and fluoride treatments are the most effective ways to prevent new cavities. Dental sealants on back teeth are also an excellent preventive option, particularly for children and teenagers.
Fillings for children
Cavities in baby teeth still need treatment, since untreated decay can cause pain, spread infection, and affect the development of the permanent tooth underneath. We use the same gentle, tooth-colored composite approach for children’s fillings. See our pediatric dentistry page for more on how we support young patients.
Serving Mississauga, Erin Mills, Churchill Meadows, Streetsville & Meadowvale
Eglinton Oak Dental provides dental fillings and cavity treatment to patients across Mississauga, including Erin Mills, Central Erin Mills, Churchill Meadows, Streetsville, and Meadowvale.
Why Choose Eglinton Oak Dental for Dental Fillings
Catching and treating a cavity early is one of the easiest ways to protect both your smile and your budget. Our team uses modern tooth-colored composite materials for a natural, comfortable, long-lasting result, and we always explain exactly what we’re seeing on your X-rays before recommending treatment. Rated 4.8★ by more than 320 patients, we welcome new patients for a checkup and cavity assessment. Call 905-607-1112 to book yours.
Frequently asked questions about dental fillings in Mississauga
How much do dental fillings cost in Mississauga?
Fillings typically cost $150–$220 for a small, single-surface cavity, up to $260–$380 for a larger, multi-surface filling.
Are composite fillings better than silver amalgam?
Composite fillings bond directly to the tooth, require removing less healthy structure, and match your natural tooth color, which is why they’re now the standard choice for most fillings.
How long do dental fillings last?
Composite fillings typically last 7 to 10 years with good oral hygiene, depending on size, location, and habits like grinding.
Are dental fillings covered by insurance or the CDCP?
Most dental plans cover fillings as a basic service at 70–100%. Eligible patients may also have coverage through the CDCP.
Does getting a filling hurt?
No, the tooth and gum are numbed with local anesthesia beforehand, so the procedure itself should not hurt.
What happens if I don’t treat a cavity?
Untreated cavities continue to grow deeper, often eventually requiring a root canal or extraction instead of a simple filling.
How long does a filling appointment take?
Most fillings take 20 to 40 minutes per tooth and are completed in a single visit.
Can baby teeth get fillings?
Yes, cavities in baby teeth need treatment to prevent pain, infection, and effects on the developing permanent tooth underneath.