If you have older dental fillings — especially silver (amalgam) ones — you may be wondering if they could affect your overall health. It’s a valid question, and many Canadian patients ask about it during checkups.
Let’s explore the facts about old fillings and your health.
📃 Types of Fillings
Older fillings are typically made from:
- Amalgam (silver-coloured): A durable mix of metals, including mercury, silver, tin, and copper
- Composite (tooth-coloured): Common in modern dentistry for a natural appearance
Amalgam has been used safely in dentistry for over 150 years.
⚠️ Are Amalgam Fillings Safe?
According to organizations like the Canadian Dental Association (CDA) and the World Health Organization (WHO), amalgam fillings are considered safe for most people.
However, you might consider replacing them if:
- You have a known mercury allergy
- The filling is cracked, leaking, or loose
- You want a more cosmetic (tooth-coloured) option
🩺 When Old Fillings Become a Problem
Like any dental work, fillings can wear down over time. Risks include:
- Tooth decay underneath an aging filling
- Cracks in the tooth structure
- Sensitivity or discomfort
- Gum irritation if the margins are rough
✅ Should You Replace Old Fillings?
Not all old fillings need to be replaced. But during your regular dental exam, your dentist will:
- Check for cracks, decay, or wear
- Take X-rays if needed
- Recommend replacing only if necessary
Concerned about an old filling?
Visit our Canadian dental clinic for a professional assessment. We’ll help you make informed choices to keep your smile healthy and worry-free.