If a dentist just handed you an old crown, or you found one in a drawer from years ago, the first question is usually the simplest one: is this actually gold, or is it just some kind of metal that looks similar? In the large majority of cases, dental gold is real gold, alloyed with other metals for strength. This guide explains what "real" actually means for a dental alloy, how to tell what you're holding, and what you should do if you think you have valuable metal.
Dental gold is not gold-colored metal standing in for the real thing. It is genuine gold, mixed with other metals into an alloy strong enough to survive decades of chewing. That mixture is exactly why dental gold looks different from a gold ring or coin. Often, it is a duller yellow, sometimes with a slightly different tone depending on what it's alloyed with, which is why many mistakenly assume it is not real.
Dental gold is almost never 24K. It's blended with metals like silver, copper, platinum, or palladium, and the blend is classified into three categories:
High-Noble Alloys contain at least 60% precious metals, with gold typically in the 16K to 22K range. These are the most valuable dental alloys and the ones most people picture when they hear "gold crown."
Noble Alloys fall between 25% and 60% precious metal content, often 10K to 14K. Still genuinely gold, still worth selling, just a lighter concentration.
Base Metal Alloys contain less than 25% gold, frequently blended with nickel, chromium, or cobalt. These exist in dentistry too, and the gold content can be low enough that testing and refining costs eat into most of the value.
If you are interested in appraising the value of your crowns, Accurate Precious Metals Refineries can value your gold and tell you how much your dental scrap is worth! We can even buy your gold from you directly, so you can get your gold valued and walk away with cash in your hand in the same trip. If you can't make it to our Salem location, you can also mail in your gold!
Gold has been part of dentistry since the 16th century, and cast gold crowns became a standard restoration by the 19th century long before porcelain and composite resins existed as alternatives. Dentists reached for gold for practical reasons, not appearance:
- It resists corrosion in the acidic, constantly-wet environment of the mouth
- It does not react with human tissue
- It can be cast and shaped with tight precision around a damaged tooth
- It wears at roughly the same rate as natural tooth enamel, which reduces damage to the teeth it bites against
None of that requires decorative-grade purity. It requires an alloy that behaves predictably for decades, which is exactly what dental gold is built to do.
A few things point toward a genuine gold-alloy restoration:
- When it was placed. Full cast gold crowns were far more common before the 1990s. A crown that's decades old is more likely to be a high-noble alloy than one placed recently.
- Where it sits in the mouth. Gold was, and still is, favored for back molars, where strength matters more than appearance, since it isn't visible when you smile.
- Weight and feel. Gold alloys feel noticeably heavier than the porcelain or composite that dentists use for front-facing work.
- What your dentist tells you. If a dentist removes an old restoration and hands it to you, ask directly whether it was gold. Dental offices generally know the material history of a case even when the patient doesn't.
None of these replace an actual test. A precise read comes from XRF analysis, which is a non-destructive scan that identifies the exact metals in the alloy. This is exactly what a reputable buyer like Accurate Precious Metals Refineries runs before making an offer.
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Warning: Don't try to test purity yourself with a home acid-test kit or a DIY scratch test. Dental alloys are small and irregular, testing methods made for jewelry can damage or destroy the piece, and the result still won't be as reliable as a professional XRF read.
Value comes down to two numbers: weight and gold content. Here's the math for a 16K crown weighing 2 grams, using a gold price of $3,993 per ounce as an example:
- Convert karat to percentage: 16 ÷ 24 = 66.6% gold
- Convert grams to troy ounces: 2 ÷ 31.1 = 0.0643 troy ounces
- Calculate pure gold weight: 0.0643 × 0.666 ≈ 0.0428 troy ounces
- Calculate melt value: 0.0428 × $3,993 ≈ $171
That figure is the melt value (what the gold itself is worth before a buyer's offer). It's also exactly why "is this real" is the right first question: a base-metal crown and a high-noble crown can look almost identical, but the math above only applies to the one that's actually carrying real gold content.
For the full breakdown of how that melt value turns into an actual offer — and how to sell dental gold by mail without leaving home — see Get cash for dental gold: an at-home guide to selling safely.
Once you've confirmed (or reasonably suspect) that what you're holding is a genuine gold alloy, the next step is simple: don't let it sit in a drawer. Have any remaining crown removed by a dentist rather than at home, rinse it with water only (no bleach or abrasives), and get it in front of a buyer like Accurate Precious Metals Refineries who tests properly instead of guessing from a photo.
Accurate Precious Metals is a specialized precious metals dealer, not a pawn shop. We have over sixteen years in business with more than three-thousand five-star customer reviews across Google and Shopper Approved. Every piece of dental gold is evaluated with XRF analysis and priced against live spot prices, not a fixed guess. The mail-in program covers sellers anywhere in the United States with insured shipping, and customers local to Salem, Oregon can bring pieces in for the same evaluation in person.
Call (503) 400-5608 or visit AccuratePMR.com to get started.
Is all dental gold real gold?
Most is, but not all. Dentistry also uses base-metal alloys with little or no gold content. Testing is the only way to know for certain which one you have.
Why doesn't my crown have a karat stamp?
Dental restorations are almost never hallmarked the way jewelry is. No stamp doesn't mean no gold, it just means the piece needs to be tested rather than read.
Can I test it myself at home?
Basic checks like weight and color can give you a hunch, but a real answer requires professional XRF testing, which doesn't damage the piece.
Does it matter how old the crown is?
Older crowns, especially anything placed before porcelain and composite became common, are more likely to be high-noble gold alloys.
What if my dentist just removed it and I don't know anything else about it?
That's the most common way people end up with dental gold. Hold onto it, don't clean it with chemicals, and have it evaluated — the history doesn't need to be known for the piece to be tested and priced.
