Dental fillings don’t last forever — even though they’re designed to be strong and durable, wear and tear over time can lead to issues. Knowing when to replace an old filling can help prevent bigger (and often more expensive) dental problems down the road.
In this blog, we’ll walk you through the signs to watch for, why replacements are sometimes necessary, and how your dentist can help you stay ahead of potential complications.
⏳ How Long Do Fillings Typically Last?
The lifespan of a filling depends on the material used and your oral habits. On average:
- Amalgam (silver) fillings: Can last 10 to 15 years
- Composite (white) fillings: Typically last 5 to 10 years
- Gold or ceramic fillings: May last even longer, sometimes up to 20 years
That said, every mouth is different. Some people may need replacements sooner, especially if they grind their teeth, chew hard foods frequently, or have poor oral hygiene.
⚠️ Signs Your Filling May Need to Be Replaced
Your filling might look fine on the surface, but that doesn’t mean there’s nothing going on underneath. Here are common signs it’s time for a replacement:
- Sensitivity to hot, cold, or sweet foods
- Pain or discomfort when biting or chewing
- A visible crack or chip in the filling
- Rough or worn-down surfaces
- Discolouration around the edges
- A feeling that the filling is loose or “off”
If you notice any of these symptoms, it’s a good idea to book a dental exam — even if the discomfort is mild.
❗ What Happens If You Don’t Replace a Damaged Filling?
Neglecting a worn or broken filling can lead to:
- Decay forming under or around the filling
- Infection or inflammation in the tooth pulp
- Fractures in the surrounding tooth structure
- The need for more advanced treatment like a root canal or crown
Catching problems early often means simpler, more affordable treatment.
🦷 How Your Dentist Checks Fillings
At your routine check-up, your dentist will examine your fillings using tools and X-rays to detect any weaknesses or decay that aren’t visible to the naked eye. In some cases, they may recommend replacing a filling before it causes pain — a proactive step to avoid emergencies.
💡 Preventive Care Goes a Long Way
To help your fillings last longer:
- Brush twice a day with fluoride toothpaste
- Floss daily
- Avoid chewing on ice, hard candy, or pens
- Wear a night guard if you grind your teeth
- See your dentist regularly for check-ups and cleanings
Need a Filling Checked or Replaced?
If you think one of your fillings may be failing — or if it’s just been a while since your last dental visit — we’re here to help. Our team will assess your smile and recommend the best solution to keep your teeth healthy and strong.
📍 100 McLevin Ave, Scarborough, ON
📞 Call us to book an appointment today
💻 Or request a visit online — we make it easy!