Which crown material is the strongest?

Zirconia and metal alloys (including gold) are the strongest crown materials. Zirconia has largely replaced metal for most patients because it combines excellent strength with a natural tooth-colored appearance. Gold is still considered the gold standard for durability but is rarely chosen for aesthetic reasons.

How long do crowns last?

Most crowns last 10–20 years or longer with proper care. Longevity depends on the material, the location of the tooth, your bite forces, and how well you maintain your oral hygiene. Zirconia and gold crowns tend to last the longest. All-ceramic crowns on front teeth can last just as long when properly placed and cared for.

Do crowns look natural?

Modern zirconia and all-ceramic crowns are designed to closely mimic natural tooth enamel, including its translucency and surface texture. On front teeth, a skilled ceramist can create a crown that is virtually indistinguishable from the surrounding teeth. Back teeth are less visible, so aesthetics are less critical there.

Are there any allergies to crown materials?

Metal allergies are rare but possible. If you have a known allergy to nickel or other metals, let your dentist know. Zirconia and all-ceramic crowns are metal-free and highly biocompatible, making them an excellent choice for patients with metal sensitivities.

Can I choose my crown material?

Yes, within reason. Your dentist will recommend the most appropriate material based on the tooth location and clinical factors, but you can discuss your preferences. If you want a tooth-colored crown on a back molar, zirconia is typically the recommendation. If cost is a concern, your dentist can discuss options.

Does insurance cover all crown materials?

Most dental insurance plans cover crowns at 50% after the deductible, up to your annual maximum. Some plans have limitations on which materials they cover for specific teeth — for example, they may only cover the cost of a metal crown for back teeth and require you to pay the difference for a tooth-colored option. Our team can verify your benefits before your appointment.

What Are Dental Crowns Made Of? | Dental Learning Center

Quick Answer

Four dental crown material options — white porcelain, silver metal, and gold — displayed on tooth models

Dental crowns can be made from several materials: porcelain-fused-to-metal (PFM), all-ceramic or all-porcelain, zirconia, gold alloy, and base metal alloys. The best material for your crown depends on which tooth needs the crown, how much biting force it bears, your aesthetic preferences, and your budget. Most patients today choose zirconia or all-ceramic crowns for their natural appearance and durability.

What You'll Learn

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Crown materials

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Pros and cons

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Best for each tooth

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Cost differences

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The Main Types of Crown Materials

Crown technology has advanced significantly over the past two decades. Today's options range from traditional gold and metal alloys to highly aesthetic all-ceramic and zirconia restorations that are nearly indistinguishable from natural teeth.

Each material has specific strengths and trade-offs. Your dentist will recommend the most appropriate material based on the location of the tooth, the forces it must withstand, and your personal preferences.

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Zirconia Crowns

Zirconia has become the most commonly recommended crown material at many dental practices, including Merchants Walk Dental. It is an extremely strong ceramic material that can withstand the heavy biting forces of back teeth while still looking natural.

Zirconia crowns are tooth-colored, metal-free, and highly biocompatible (meaning they are very unlikely to cause allergic reactions). They are durable enough for molars and attractive enough for front teeth, making them a versatile choice for most patients.

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All-Ceramic and Porcelain Crowns

All-ceramic crowns offer the most natural appearance of any crown material. They transmit light similarly to natural tooth enamel, making them the preferred choice for front teeth where aesthetics are the top priority.

The trade-off is that traditional all-ceramic crowns are not as strong as zirconia and may not be the best choice for back molars that bear heavy chewing forces. However, newer ceramic formulations have improved significantly in strength.

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Porcelain-Fused-to-Metal, Gold, and Metal Crowns

Porcelain-fused-to-metal (PFM)

PFM crowns have a metal substructure covered with tooth-colored porcelain. They are strong and aesthetic, but the metal margin can sometimes show as a dark line at the gumline over time. They were the standard for many years and are still a reliable option.

Gold alloy crowns

Gold crowns are extremely durable and gentle on opposing teeth. They require less tooth removal than other materials and rarely fracture. Their obvious downside is appearance — most patients prefer tooth-colored options. Gold crowns are sometimes recommended for back molars in patients who grind their teeth heavily.

Base metal alloy crowns

These crowns use non-precious metals that are very strong and resistant to corrosion. Like gold crowns, they are typically used only on back teeth where they will not be visible.

Which material is right for you?

Your dentist will consider the tooth location, your bite forces, aesthetic goals, and budget. Front teeth almost always receive ceramic or zirconia. Back molars may benefit from zirconia or gold if you grind your teeth. Your dentist will walk you through the options at your crown consultation.