Medically reviewed by Dr. Eisen

White vs. Silver Fillings: Which Is the Better Choice?

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Key Takeaways

  • Choosing the right filling impacts oral health, aesthetics, and long-term comfort.
  • White (composite) and silver (amalgam) fillings each have distinct pros and cons.
  • Your dentist can help determine the best dental filling for your needs and budget.

Let’s face it—no one gets excited about cavities. But if you do need a filling, the material used can make a big difference. From appearance to durability and even cost, choosing between a silver filling vs a white filling isn’t always simple. So, which is right for you?

Let’s break it down.

What Are White (Composite) Fillings?

White fillings, or composite white fillings, are made from a mix of plastic resin and finely ground glass particles. That may sound high-tech—and it is. This combination allows dentists to shape and colour-match the material to your natural teeth for a nearly invisible result.

They’re applied in layers, then hardened using a special curing light. The result is a strong bond that restores the tooth’s shape and function while maintaining a natural look.

Why people love them:

  • Natural appearance (no silver flash when you smile)
  • Strong bonding to the tooth
  • Minimal removal of healthy tooth structure

Composite Fillings

What Are Silver (Amalgam) Fillings?

Silver, or amalgam fillings, have been used for more than a century. They’re made of a mix of metals including silver, mercury, tin, and copper. That may sound a bit old-school, but amalgam is still known for being incredibly durable, especially in back teeth that take the most pressure when chewing.

Why were they used so widely?

  • Strong and long-lasting (sometimes 20+ years!)
  • Quick to place
  • Typically less expensive than white fillings

Silver Fillings

Key Differences Between White and Silver Fillings

Here’s a look at the differences between silver fillings vs white fillings:

Feature

White (Composite) Fillings

Silver (Amalgam) Fillings

What are fillings made of

Plastic resin + glass particles

Mercury, silver, tin, copper

Aesthetic appeal

Tooth-coloured; blends in naturally

Noticeable metallic look

Durability

Strong, but may wear down in heavy pressure areas

Extremely durable, ideal for molars

Application process

Applied in layers, cured with light

Placed as a single filling

Tooth preservation

Requires less removal of healthy tooth

May require more removal

Cost

Typically more expensive

More affordable

How long do white fillings last

7–10 years or more with good care

10–20+ years

The Truth About Mercury: Should You Be Concerned?

One of the biggest concerns with amalgam fillings is the mercury content. And it’s a fair question: is it dangerous?

The answer: not for most people. According to the FDA, dental amalgam is safe for use in adults and children over age 6. The small amount of mercury is bound in a stable alloy, and only trace vapour is released during chewing.

That said, certain people—like pregnant women, nursing mothers, and those with mercury sensitivities—may want to opt for composite instead.

Should you replace old amalgam fillings?
Only if necessary. If your fillings are in good shape and not causing issues, it’s best to leave them alone. If removal is needed, your dentist can safely replace them with composite using proper isolation and suction techniques.

What’s the Best Choice for Your Teeth—and Your Wallet?

There’s no one-size-fits-all answer when choosing between a silver filling vs white filling. Here’s a general guide:

  • Choose composite (white) fillings if you want:

    • Natural-looking results
    • A filling in a visible area (like front teeth)
    • To avoid metals or mercury
  • Choose amalgam (silver) fillings if you want:

    • A more affordable option
    • Long-lasting durability in back teeth
    • Coverage under basic dental plans

Insurance coverage can also sway your decision. Some plans may cover white fillings only in front teeth or pay partially for molars. Always check with your provider.

The Future of Dental Fillings: What’s Next?

Dentistry is constantly evolving, and yes, mercury-free materials are becoming the new standard. New options, like ceramic inlays, resin-based composites, and even bioactive materials, are showing promise. These materials not only repair teeth but also help protect them from future decay.

As Dr. Amir Guorgui from Barrie Smile Centre explains:

"At Barrie Smile Centre, we believe in tailoring dental treatments to each patient's unique needs. Whether choosing between composite or amalgam fillings, our goal is to ensure optimal oral health and patient satisfaction."

White Fillings at Barrie Smile Centre

At Barrie Smile Centre, we proudly offer composite white fillings that look great and last. Our approach uses the latest technology to ensure your fillings are placed safely, comfortably, and with lasting results.

Whether you’re replacing an old filling or treating a new cavity, we’ll help you choose the best dental filling for your needs—no guesswork, just expert advice.

FAQs: White vs. Silver Fillings

Q: What are fillings made of?
A: Composite (white) fillings use resin and glass; silver fillings use mercury, silver, and other metals.

Q: How do fillings work?
A: Fillings restore a decayed or damaged tooth by sealing the area and preventing further decay.

Q: Are fillings permanent?
A: Not quite. Fillings are long-lasting but may need to be replaced over time due to wear or damage.

Q: How long do white fillings last?
A: Typically 7–10 years, but with good care, they can last longer.

Q: Silver filling vs white filling—what’s better?
A: It depends! White fillings look better, while silver ones may last longer in back teeth.

Q: Silver fillings vs white fillings—what do most people choose today?
A: Many patients now prefer white fillings for cosmetic reasons, especially in visible teeth.

Q: What is the best dental filling?
A: The best dental filling is the one that suits your tooth’s location, your lifestyle, and your personal preferences. Your dentist can help guide you.

References:

  1. https://www.fda.gov/medical-devices/dental-devices/dental-amalgam-fillings
Andrea Galick

Andrea Galick is an accomplished Dental Hygienist (RDH) with a passion for helping patients achieve optimal oral health. Andrea has built a reputation as a caring and skilled practitioner who puts her patients at ease and provides individualized care that meets their unique needs.

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