How Much Gold Is in a Dental Crown? Weight, Purity and Value

Most people asking this question are holding the crown. It came out at a dental appointment, or it turned up in a drawer or in a relative's belongings, and the question is a practical one: is there real gold in it, how much, and what is it worth now?

There is no single number, because the answer depends on the alloy the dental lab used and roughly when the crown was made. What follows is the weight and gold content to expect by crown type, the arithmetic that turns those two figures into a gold value, and how the gold content of one particular crown is actually measured. If you run a practice and extracted crowns accumulate week by week, the collection and record-keeping guidance is further down the page.

How Much Does a Gold Crown Weigh?

There is no single figure. A crown is a casting made to fit one tooth, so its weight varies with the size of the tooth it covered and with how the restoration was built. The metal weight that decides a payout has to be measured on a scale, not estimated — and what gets weighed for valuation is the metal alone, not a restoration still attached to tooth structure, cement or ceramic. What changes the metal weight:

• The size of the tooth. A crown covering a larger tooth generally needs more metal than one covering a smaller tooth.
• How much of the tooth is covered. Inlays and onlays are partial restorations rather than full caps, so they cover less of the tooth than a full crown does.
• Whether the restoration is all metal. A porcelain-fused-to-metal (PFM) crown carries a metal coping beneath the porcelain; the porcelain is not metal and does not count toward the metal weight.
• How many units there are. A bridge is several units joined by connectors, so it carries more metal than a single crown of the same alloy.
• What is still attached. A crown still on an extracted tooth weighs more than its metal does. The tooth, the cement and any ceramic are not metal, and are not what the gold content is calculated from. Crowns in that condition are accepted as they are.

The table further down sets out what decides the weight for each crown type. Weight on its own is still only half the answer: a heavier crown made from a low-gold alloy can hold less gold than a lighter crown made from a high-gold one, which is why the next section works the two figures through together. If what you are holding is a gold tooth, the same applies — a gold tooth is normally a gold crown fitted over a natural tooth.

What Is a Gold Crown Worth?

The gold in a crown is worth whatever that weight of gold is worth, so the arithmetic is short:

metal weight in grams × gold percentage ÷ 31.1035 × the gold price per troy ounce = the gold value

Your offer is that gold value multiplied by the payout rate shown in your written report, so the offer is lower than the gold value itself. Dental Gold Experts bases its offer on the measured gold content.

Your offer depends on the gold content measured after melting, the gold spot price shown in your written report, and the payout rate.

To put your own figures in, use the dental gold calculator. If you have already decided to sell, selling gold crowns covers what happens at each step, and is dental gold worth selling? is the wider picture when there is only a small amount of material.

The Three Alloy Categories: High-Noble, Noble and Base Metal

An American Dental Association reference page sets out a three-way classification of dental casting alloys by precious metal content. The ADA marks that material as archived and for information only, and it refers to a specification published in 2003, so it is a historical classification rather than a current standard. It also tells you only which band an alloy falls in — it does not tell you the gold content of any particular crown. Dental alloys carry no karat stamp either, so a measured gold percentage is the only figure that settles the question — what karat dental gold is explains how a gold percentage converts to a karat equivalent.

Gold Content and Weight by Crown Type

Within the ADA's three categories, there are several distinct crown types dentists encounter regularly. The table below describes where the gold sits in each common type and what decides its weight. It gives no percentages or gram figures, because neither can be known for a particular crown without measuring it.

*Your offer depends on the measured metal weight, the gold percentage measured after melting, the gold spot price shown in your written report, and the payout rate. Use the dental gold calculator to try figures of your own. Published gold prices, such as those at Kitco, change daily.

Blake Plummer Founder, Dental Gold Experts · 15+ Years in Precious Metals

Expert Perspective

The question I get asked constantly is about dental crown gold content — and the honest answer is that it depends almost entirely on what era the crown was made. Older crowns were more often made from high-noble alloys, and crowns made from the mid-1980s onward shifted toward palladium-heavy noble alloys as gold prices rose. Crowns made after 2005 might be anything from base metal to porcelain with no metal at all. The era of fabrication gives you a useful starting guess, but the assay gives you the real number — and that's the only one that matters.

Why Color Is Not a Reliable Guide

One of the most persistent misconceptions about crown alloy composition is the assumption that yellow equals gold and white equals no gold. This is wrong in both directions — and acting on this assumption costs dentists and patients real money every day.

Yellow crowns do strongly suggest gold content. But a yellow appearance can also result from copper content in lower-noble or base metal alloys that contain no significant gold. Conversely, white or silver crowns frequently contain palladium — a precious metal that has, at various points in the last decade, traded above gold per troy ounce on international commodity markets. Dental Gold Experts bases its offer on the measured gold content, so a white crown's value to us depends on how much gold it contains.

What none of these appearance cues gives you is a number: appearance alone cannot establish a gold percentage. Dental Gold Experts bases its report on the measured metal weight and the gold percentage determined after melting and XRF testing, with the result set out in a written report. If you are not yet sure the piece is dental gold at all, how to identify dental gold covers the markings and tests people try first. Learn more about how the dental gold assay process works and what to expect from a written report.

How Weight and Gold Percentage Work Together

Gold content is not just a percentage — it is the percentage working together with the weight. A light crown at a high percentage can hold less gold than a heavier crown at a lower one.

When you submit a crown to a specialist buyer, the melt-and-assay process determines two things: the exact weight of the batch in grams, and the precise percentage of gold present. Those two figures, combined with the gold spot price shown in your written report and the payout rate, produce your offer from Dental Gold Experts. For a step-by-step walk-through of the sale itself, see selling gold crowns.

What to Do With an Extracted Crown

If you have one crown, the step that matters is having it measured rather than guessing from its color or weight. If you run a practice and crowns come out every week, the answer is the same but repeated: save everything, batch it periodically, and send it to a buyer who melts and measures rather than estimating.

• Save every extracted metal restoration. Yellow, white, silver, mixed — all of it. Don't sort, don't discard based on color, don't throw away PFMs because the porcelain makes them look like ceramic. The metal substructure of a PFM can still contain significant precious metal content. Dental bridges should be saved too — they often yield more than individual crowns by weight — and the same applies to gold fillings, gold dentures and partials, and crowns still attached to extracted teeth, which are accepted as they are.
• Use a dedicated collection container. A simple labeled jar or zip bag in the operatory is all it takes. The workflow requires nothing more than dropping extracted crowns and removed restorations in the same place every time.
• Batch submissions quarterly or semi-annually. There is no minimum quantity — but submitting a larger accumulated batch means one evaluation covers more material efficiently. Batching does not change how gold content is measured: the whole batch is melted, and the melted material is analyzed by XRF.
• Request your free prepaid USPS shipping label when ready. We email you a prepaid USPS shipping label and packing instructions. Use a USPS Small Flat Rate Box and drop it at any USPS location. We usually process your material the day your package arrives or the next day; packages received on a weekend are processed the next business day.
• Review the written assay report. Every submission comes with a written report showing the weight, gold percentage, gold spot price used, payout rate, and payout calculation — based on measured gold content, not a guess.

Collection works best as a simple routine rather than an occasional afterthought.

Blake Plummer, Founder · From the Field

When dentists ask me what percentage of gold is in a crown, they are always surprised that I will not give them a number before it is melted. The spread across alloy types and fabrication eras is genuinely that wide. A "small, thin, white-looking crown" can still contain some gold. I've seen large, clearly yellow crowns with lower gold percentages than expected because of the specific alloy used. The number is in the measured gold content — not the appearance. That's why the assay is everything.

Crowns vs. Bridges: Why a Bridge Is Worth More

While this guide focuses on individual crowns, most dental practices also accumulate multi-unit bridges — and understanding dental crown gold content helps clarify the proportionally higher value of a bridge.

A 3-unit bridge is essentially three crowns fused together with connector sections. It therefore carries more metal than a single crown of the same alloy, and the more units a bridge has the more metal it carries. At the same gold percentage, more metal means more gold. A high-noble 3-unit bridge contains roughly three times the gold of a single crown of the same alloy — see how much gold is in a dental bridge for the detail, or selling dental bridges for the sale itself.