Silver Vs. White Dental Filling – Which Is Better?
If you’ve been told you need a filling, it’s normal to pause at the next question: silver or white? Both are trusted ways to repair a tooth affected by decay; they simply behave differently in how they look, how they’re placed, and how they hold up over time.
At Longwood House Dental Care, we like decisions that feel clear. So here’s a straight-talking guide to silver fillings (amalgam) and white fillings (composite); the real differences, and how we help you choose what makes sense for your tooth.
What Are Silver Fillings?
Silver fillings, also called amalgam fillings, have been used for well over a century. They’re made from a blend of metals, including silver, tin, copper and mercury. They’re most often used on back teeth, where chewing forces are highest and durability matters.
What people like about them
Silver fillings are known for being tough. They cope well with heavy biting and can last a long time, often 10–15 years, sometimes longer depending on the size of the filling and how your bite loads that tooth. They also tend to be the more budget-friendly option.
What to be aware of
The obvious one is appearance; they don’t blend with your tooth colour. Some people don’t mind this on molars; others really do. Amalgam also doesn’t bond to the tooth in the same way composite does, which can mean slightly more shaping during placement. And while health authorities consider amalgam safe, some patients prefer to avoid mercury-containing materials and choose a mercury-free alternative.
What are white fillings?
White fillings are usually composite resin fillings, made from a blend of plastic and glass particles. They’re tooth-coloured, so they’re popular for visible areas; they’re also very useful for many small-to-medium cavities anywhere in the mouth.
Why patients choose them
White fillings are designed to blend with your natural tooth colour, so they’re discreet. They’re also mercury-free. Importantly, composite can bond directly to the tooth, which often allows a more conservative approach; in many cases we can preserve more healthy tooth structure. That bonded seal can be a real advantage for certain cavities and tooth shapes.
A few limitations
Composite is strong, but it isn’t always the best choice for every large back-tooth cavity. For bigger restorations under heavy chewing pressure, composite may wear sooner than amalgam, especially if the bite is tight or you clench or grind. White fillings can also pick up staining over time from tea, coffee, red wine or smoking; good hygiene helps keep them looking their best.
Silver fillings vs white fillings: the key differences
Appearance
Silver is visible; white blends in.
How they hold up
Silver is famously tough for heavy chewing. White is strong too, but performance depends more on cavity size and bite forces.
How they’re placed
White bonds to the tooth, which often means a more tooth-preserving approach. Silver doesn’t bond in the same way.
Material preference
Silver contains mercury in an alloy; white is mercury-free.
Cost
Silver is usually more cost-effective; white often costs more because it’s technique-sensitive and takes longer to place well.
Which type of filling is right for you?
This is where the “best” answer becomes personal. We look at the tooth, the size of the cavity, your bite, and what matters to you.
If appearance matters most
If the cavity is visible when you smile or talk, white composite fillings are usually the natural choice. They’re designed to disappear into the tooth, not announce themselves.
If the cavity is large or on a heavy-chewing tooth
Back molars take a beating. For larger cavities where the tooth needs maximum toughness, amalgam can still be a sensible option. In some cases, we may also discuss other restorations that protect the tooth long-term, depending on how much structure is left.
If budget is a factor
It’s completely fair to ask about cost. Silver fillings are often the more affordable option; white fillings can cost more because they require careful bonding and shaping to look and function well.
If you’d rather avoid mercury
Many patients simply feel more comfortable choosing a mercury-free material. In that case, white composite fillings give you a safe, widely used alternative.
If you have sensitivity or a history of cracking
Because composite bonds to the tooth, it can give supportive reinforcement in certain situations. The right choice still depends on cavity size and tooth strength; we’ll talk it through clearly.
How we make the decision feel easy
We’ll show you what we’re seeing, explain why the tooth needs a filling, and talk through options in normal words. We’ll also check your bite carefully, because a great filling isn’t just about the material; it’s about how it fits your mouth.
Frequently Asked Questions (FAQs)
How much do silver fillings cost at Longwood House Dental Care?
Fees depend on the tooth and size of the cavity. For the most up-to-date prices, please visit our Fees page; we review fees periodically so everything stays accurate and transparent. See Pricing.
Can I replace my silver fillings with white fillings?
Yes, in many cases. We’ll assess the tooth first; sometimes a silver filling is stable and doesn’t need changing. If replacement makes sense, we’ll plan a safe removal and a restoration that suits the tooth..
Are white fillings durable enough for back teeth?
Often, yes, especially for small to medium cavities. For very large back-tooth restorations under heavy biting forces, we’ll be honest if another option is likely to last longer..
How long do white fillings last?
A typical range is 5–10 years, sometimes longer with good hygiene, regular check-ups, and a stable bite. Size, tooth position and clenching/grinding all make a difference.
