A gold crown is a dental restoration that covers a damaged or weakened tooth entirely, made from a gold alloy rather than porcelain or ceramic. Gold has been the material of choice for dental crowns for over a century, and it remains one of the most durable options available. A 2015 literature review found gold crowns have a 95 percent survival rate over 10 years, and with proper care, many last for decades.
What Gold Crowns Are Made Of
Gold dental crowns aren’t pure gold. They’re made from alloys that blend gold with other metals like palladium, silver, copper, and sometimes platinum. The gold content is measured in karats (10K, 14K, 18K, or higher), and higher karat means more gold in the mix and a higher material cost. These alloys fall into the “noble metal” category in dentistry, meaning they resist corrosion and tarnishing inside the mouth.
The specific blend matters because it affects the crown’s hardness, color, and how it wears over time. A higher gold content produces a softer, more yellow crown that’s gentler on opposing teeth. Lower-karat alloys are harder and may include more base metals, which can very occasionally trigger sensitivity in people with metal allergies.
Why Dentists Still Recommend Gold
Gold crowns have several distinct advantages over porcelain and ceramic alternatives. The most significant is how closely gold wears compared to natural tooth enamel. In laboratory wear testing, gold crowns showed minimal volume loss (0.01 cubic millimeters over 30,000 simulated chewing cycles), while natural enamel opposing a hard ceramic surface lost 0.47 cubic millimeters under the same conditions. This means gold is far less likely to grind down the teeth it bites against.
Gold also achieves an exceptionally tight fit against the prepared tooth. Cast gold crowns typically have a marginal gap of around 75 to 85 micrometers, which is well within the clinically acceptable range. That tight seal matters because gaps between a crown and the tooth underneath are where bacteria can sneak in and cause decay. Gold’s ability to be burnished (gently pressed and shaped) at the margins gives it an edge over rigid ceramic materials that can’t be adjusted the same way.
The material is also strong without being brittle. Porcelain crowns can chip or crack under heavy bite forces, especially on back teeth. Gold flexes slightly under pressure instead of fracturing, which makes it particularly well suited for molars that absorb the most chewing force.
How Much Tooth Gets Removed
One underappreciated advantage of gold crowns is that they require less tooth removal than other types. A gold crown needs only 0.5 to 1 millimeter of tooth structure shaved away from the biting surface. Compare that to a porcelain-fused-to-metal crown, which requires a minimum of 2 millimeters of reduction on top, plus 1.2 to 1.5 millimeters off the sides.
That difference is significant. Preserving more of your natural tooth means the underlying structure stays stronger, and there’s less risk of damaging the nerve inside. For back teeth where appearance isn’t a priority, this conservative preparation is a real clinical benefit.
What the Procedure Looks Like
Getting a gold crown typically takes two appointments. At the first visit, your dentist numbs the tooth, reduces it to the required dimensions, and takes an impression. That impression goes to a dental lab where a technician casts the crown from molten gold alloy using a lost-wax technique. You’ll wear a temporary crown for one to three weeks while the permanent one is being made.
At the second appointment, the temporary comes off, the gold crown is checked for fit and bite alignment, and then it’s cemented permanently in place. Some practices now use digital impressions instead of the traditional putty molds, and research shows the resulting crowns fit just as well or slightly better in certain measurements.
Cost and Insurance
A single gold crown typically costs between $800 and $2,500 or more. The price depends on several factors: the karat of gold used, the size of the tooth (larger teeth need more metal), your dentist’s fees, and the lab’s casting charges. Because gold is a commodity, prices fluctuate with the precious metals market. Higher-karat crowns with more noble metal content cost more.
Dental insurance often covers gold crowns the same way it covers other crown types, usually at 50 to 80 percent after your deductible. However, if your plan considers a porcelain crown the “standard” option, you may need to pay the difference in material cost out of pocket.
Downsides to Consider
The most obvious drawback is appearance. A gold crown on a front tooth is conspicuous, which is why gold is primarily used on molars and premolars that aren’t visible when you smile. Some people prefer the look, but most opt for tooth-colored materials in visible areas.
Allergic reactions to gold dental alloys are rare. Documented cases of allergic contact stomatitis (irritation of the mouth lining) from gold restorations number in the single digits in the medical literature. When reactions do occur, they’re more often caused by the base metals mixed into lower-karat alloys, like nickel or cobalt, rather than the gold itself. If you have a known metal allergy, let your dentist know before choosing a crown material.
Gold crowns also conduct heat and cold more readily than ceramic crowns. Some people notice increased sensitivity to hot or cold foods for the first few weeks, though this usually fades as the tooth adjusts.
Gold vs. Other Crown Materials
- Porcelain (all-ceramic): Matches natural tooth color perfectly but is more brittle and can chip. Requires more tooth reduction. Best for front teeth where appearance matters most.
- Porcelain-fused-to-metal (PFM): Combines a metal base with a porcelain outer layer. Stronger than all-ceramic but requires the most tooth removal (2 mm on top). The porcelain layer can still chip, exposing the metal underneath.
- Zirconia: A newer ceramic option that’s very hard and durable. Wear testing shows it holds up similarly to gold in terms of its own volume loss, but earlier zirconia formulations were harder on opposing natural teeth than gold. Newer polished zirconia has improved on this.
- Gold: Most conservative tooth preparation, longest track record for longevity, gentlest on opposing teeth, and the tightest marginal fit. The tradeoff is purely cosmetic.
How to Make a Gold Crown Last
Gold crowns are low-maintenance, but they aren’t invincible. The crown itself won’t decay, but the tooth underneath it can if bacteria reach the margin where the crown meets the tooth. Brushing twice daily, flossing around the crown, and keeping up with regular dental cleanings are the basics. If you grind your teeth at night, a night guard protects both the crown and the teeth that bite against it.
With consistent care, gold crowns routinely last 20 to 30 years. Some dentists report seeing gold restorations that have been in place for 40 years or longer with no signs of failure. That longevity often makes gold the most cost-effective option over a lifetime, even though the upfront price is higher than some alternatives.