Choosing between a white (composite) filling and a silver (amalgam) filling usually comes down to more than just the upfront price. Here’s how the two actually compare.
Why Cost Differs Between the Two
Silver amalgam fillings are generally the less expensive option upfront, largely because the material itself costs less to produce and work with. Composite fillings cost more initially, partly due to the layering and curing process involved in placing them, but the price gap often narrows once you account for how each material holds up over time.
What’s Actually in Each Material
Amalgam fillings are made from a blend of metals. Composite fillings are made from a mixture of plastic resin and fine glass particles, which is also what allows them to be shaded to match the surrounding tooth.
Longevity and Durability
Amalgam has a long track record of strength and durability, and can hold up well under the pressure of chewing for many years, though it can occasionally cause small cracks in the surrounding tooth over time. Composite materials have improved significantly, but in high-pressure chewing surfaces, they can wear faster than amalgam and may need replacement sooner.
Which Looks More Natural
This is where composite has a clear advantage. Because it’s tinted to match your natural tooth color, a composite filling blends in rather than standing out, which matters most for fillings in the front of the mouth or anywhere visible when you smile. Amalgam’s metallic gray color is noticeable wherever it’s placed.
Does Insurance Cover Both the Same Way
Coverage varies by plan and insurer, and some plans reimburse amalgam at a higher rate than composite simply because it costs less. It’s worth checking your specific policy before assuming either option is fully or partially covered. The insurance and financing page covers how Eggleston Dental Care helps patients plan around whatever a plan doesn’t pick up.
How Procedure Time Compares
Composite fillings generally take longer to place because the material is applied in layers, each cured with a light before the next is added. Amalgam can typically be placed and shaped in fewer steps, which can mean a shorter chair time for a simple cavity.
Comfort and Sensitivity
Composite bonds directly to the remaining tooth structure, which some patients find reduces post-procedure sensitivity compared to amalgam. Temperature sensitivity has been reported more often with amalgam fillings, though individual experience varies.
A Note on Environmental Impact
Amalgam contains mercury, which raises disposal and handling considerations for dental offices. Composite avoids mercury, though it carries its own manufacturing and disposal footprint. Neither material is risk-free to produce, but this is a factor some patients weigh in their decision.
Keeping Either Filling Type in Good Shape
Both materials hold up longest with consistent brushing, flossing, and regular checkups. Composite fillings can pick up surface stains over time from coffee, tea, or tobacco, so patients who want to keep the color matching their natural teeth should be mindful of what stains their enamel too.
The Real Comparison Is Long-Term Cost
A lower price today doesn’t always mean lower cost overall. Composite may need fewer full replacements over a lifetime for some patients, while amalgam’s lower upfront cost can be offset by repairs or replacement down the line. For a tooth where decay is more extensive, a dental crown for a large filling may end up being the more durable choice than either type of filling.
Which Filling Is Right for You?
The right material depends on where the tooth is, how much chewing force it takes on, your insurance coverage, and how much the appearance matters to you in that spot. Dr. Jim Eggleston can walk through which option fits your specific tooth during an exam.
Ready to Talk Through Your Options?
Schedule an appointment with Eggleston Dental Care in Turlock, CA to find out which filling material is the right fit for your tooth and your budget.
