What This Guide Covers and Who It Is For
This guide compares the five main types of dental crowns so you can have an informed conversation with your dentist or prosthodontist.
A dental crown is a cap that fits over a damaged or weakened tooth. It restores the tooth's shape, size, strength, and appearance. Crowns are one of the most common restorations in dentistry. [2]
You may need a crown after a root canal, a large filling, a cracked tooth, or significant decay. Crowns are also placed on top of dental implants to replace missing teeth. In each situation, the material you choose affects how the crown looks, how long it lasts, and how much it costs.
This guide is for anyone facing a crown decision. It covers materials, costs, the procedure itself, and when to see a specialist. If you already know you need a crown and want to compare options side by side, start with the next section.
Crown Materials Compared: Porcelain, Zirconia, Metal, PFM, and CEREC
Five crown materials dominate modern dentistry, and each has clear trade-offs between appearance, strength, and cost.
No single material is best for every situation. A crown on a front tooth needs to look natural under all lighting. A crown on a back molar needs to withstand heavy chewing forces, sometimes hundreds of pounds per square inch. Understanding each material helps you weigh those priorities.
All-Porcelain (All-Ceramic) Crowns
All-porcelain crowns provide the closest match to natural tooth color and translucency. They are the leading choice for front teeth and other highly visible areas. [2]
These crowns are made entirely of dental ceramic with no metal underneath. Because light passes through them similarly to natural enamel, they blend in well with surrounding teeth. They are also a good option for patients with metal allergies or sensitivities.
The trade-off is strength. All-porcelain crowns are more prone to chipping or fracturing than metal or zirconia crowns, especially on back teeth that handle heavy biting forces. Your dentist may recommend a different material if you grind your teeth (a condition called bruxism) or if the crown will be placed on a molar that bears significant load.
Zirconia Crowns
Zirconia crowns are made from zirconium dioxide, a very strong ceramic material. They offer a combination of durability and tooth-colored appearance that has made them increasingly popular for both front and back teeth.
Zirconia is significantly stronger than traditional porcelain. It resists chipping and cracking well, which makes it suitable for molars and premolars. Newer formulations of zirconia, sometimes called multilayer or high-translucency zirconia, also look more natural than earlier versions. This improvement has expanded their use to front teeth in many cases.
One consideration is that zirconia is very hard. Some clinicians note that it can cause wear on the opposing natural teeth it bites against, though proper polishing and adjustment help reduce this risk. Zirconia crowns are now one of the most commonly recommended crown types in general and specialty practice.
Metal Crowns (Gold and Base Metal Alloys)
Metal crowns are the most durable type of crown and typically require the least amount of tooth removal during preparation. [2]
Gold alloy crowns have been used in dentistry for over a century. They are strong, resist wear, and are gentle on opposing teeth. Base metal alloys (such as nickel-chromium or cobalt-chromium) are also very strong and resistant to corrosion.
The obvious drawback is appearance. Metal crowns look like metal. This limits their use to back teeth where the crown is not visible when you smile or talk. For patients who prioritize longevity above all else and the crown is on a far-back molar, a metal crown can be an excellent choice. Gold alloy crowns in particular are well tolerated by gum tissue.
Porcelain-Fused-to-Metal (PFM) Crowns
PFM crowns use a metal core for structural support with a porcelain coating on the outside for a natural appearance. For decades, they were the default crown type for both front and back teeth.
The metal substructure gives PFM crowns good strength. The porcelain layer can be shade-matched to blend with your other teeth. However, PFM crowns have some limitations. A dark line can sometimes appear at the gumline where the metal shows through, especially as gums recede over time.
The porcelain coating can also chip or break away from the metal underneath. While PFM crowns remain a reasonable option in many situations, zirconia crowns have replaced them as the preferred choice for many dentists and prosthodontists because zirconia avoids the dark-line issue and does not have a porcelain layer that can delaminate from a metal core.
CEREC and Same-Day Crowns
CEREC stands for Chairside Economical Restoration of Esthetic Ceramics. It is a system that allows a dentist to design and mill a ceramic crown in the office during a single appointment.
The process uses a digital scanner instead of a traditional putty impression. A computer designs the crown, and an in-office milling machine carves it from a solid block of ceramic. The crown is then bonded to your tooth the same day. This eliminates the need for a temporary crown and a return visit, which is a significant convenience advantage.
Same-day crowns are typically made from materials like lithium disilicate or feldspathic ceramic. These are strong enough for many situations, but they may not be ideal for every case. For very large molars or complex bite situations, a lab-fabricated zirconia or metal crown may still be a better fit. Your dentist can advise whether a same-day crown is appropriate for your specific tooth.
How to Choose the Right Crown Material
The right crown material depends on three main factors: tooth location, bite forces, and your cosmetic priorities.
Front Teeth vs. Back Teeth
Tooth location is the single biggest factor in material selection. Front teeth are visible when you smile, so appearance matters most. All-porcelain and high-translucency zirconia are typically the top choices for incisors and canines.
Back teeth (premolars and molars) handle heavy chewing forces. Strength and durability become the priority. Zirconia, metal, and PFM crowns are all reasonable options for molars. Many dentists now favor zirconia for back teeth because it is strong and tooth-colored.
Bite Forces and Teeth Grinding
If you grind or clench your teeth, your dentist may steer you away from all-porcelain crowns on back teeth. Bruxism places extreme force on restorations and increases the risk of fracture in weaker materials.
Zirconia and metal crowns hold up best under heavy bite forces. If you have bruxism, your dentist may also recommend a night guard (a removable appliance worn during sleep) to protect your crown and your other teeth.
Allergies and Biocompatibility
Some patients have allergies or sensitivities to metals such as nickel, which is found in certain base metal alloys. If you have a known metal allergy, tell your dentist before the crown is made. All-porcelain and zirconia crowns are metal-free and are considered highly biocompatible.
Gold alloy crowns are also well tolerated by most patients, but they do contain other metals in the alloy. Your dentist can review the specific alloy composition with you if metal sensitivity is a concern.
How Long Do Crowns Last?
Crown lifespan varies by material, oral hygiene, bite habits, and the skill of the dentist or lab technician who made it. In general, a well-made crown on a well-maintained tooth can last 10 to 15 years or longer. [2] Metal crowns, particularly gold, often last the longest, sometimes 20 years or more in favorable conditions.
Good oral hygiene is critical. A crown protects the visible part of the tooth, but the margin where the crown meets the tooth is still vulnerable to decay. Brushing twice a day, flossing daily, and keeping regular dental checkup appointments all help extend the life of any crown.
What Happens During the Crown Procedure
A traditional crown typically requires two appointments spaced about two weeks apart. A same-day crown is completed in one visit.
First Visit: Preparation and Impression
Your dentist numbs the tooth and surrounding area with local anesthetic. The tooth is then reshaped by removing a thin layer of enamel on all sides. This makes room for the crown to fit over the tooth without being too bulky. [2]
After shaping, your dentist takes an impression of the prepared tooth. This can be done with a digital scanner or with traditional putty material. The impression is sent to a dental laboratory where a technician fabricates the crown. A temporary crown, usually made of acrylic, is placed to protect the tooth while you wait.
Second Visit: Fitting and Cementing
At the second appointment, the temporary crown is removed. Your dentist checks the fit, shape, and color of the permanent crown. Adjustments are made as needed so the crown sits properly and your bite feels normal.
Once everything looks and feels right, the crown is permanently cemented or bonded into place. Your dentist will check your bite one final time and may smooth any small high spots. Some mild sensitivity to hot or cold is normal for a few days after placement.
Same-Day Crown Process (CEREC)
With a same-day system, the tooth is prepared the same way. Instead of a traditional impression, a small camera takes a digital scan of the prepared tooth and surrounding teeth. Software designs the crown on a screen, and a milling unit in the office carves the crown from a ceramic block in roughly 15 to 20 minutes.
The dentist then adjusts the crown, may stain or glaze it for a more natural look, and bonds it to the tooth. The entire appointment typically takes 90 minutes to two hours. There is no temporary crown and no second visit.
Dental Crown Costs and Insurance
Crown costs typically range from $800 to $3,000 per tooth, depending on the material, the provider, and the complexity of the case. Costs vary by location, provider, and case complexity.
All-porcelain and zirconia crowns generally fall in the mid to upper end of that range. Metal crowns, especially gold, can also be on the higher end because of precious metal costs. PFM crowns are often mid-range. Same-day CEREC crowns may be priced similarly to lab-made ceramic crowns, though this varies by practice.
Most dental insurance plans cover crowns as a major restorative procedure. Coverage typically ranges from 50% to 80% of the allowed amount after any deductible is met. Many plans have annual maximum benefit limits, often between $1,000 and $2,000, which may not cover the full cost of a crown. Check with your insurance provider before treatment to understand your out-of-pocket responsibility.
If a crown is placed by a specialist such as a prosthodontist, the fee may be higher than the same crown placed by a general dentist. This reflects the specialist's additional training and expertise, which can be especially valuable for complex or highly visible cases. [1]
When to See a Prosthodontist Instead of a General Dentist
A prosthodontist is a dentist who has completed additional years of specialty training focused on restoring and replacing teeth. [1]
General dentists place crowns every day, and most single-tooth crowns on back teeth can be handled well by a general dentist. However, certain situations benefit from a prosthodontist's advanced training. These include crowns on front teeth where esthetics are critical, cases involving multiple crowns or a full-mouth reconstruction, crowns on dental implants, teeth with very little remaining structure, and patients with complex bite problems.
A prosthodontist also works closely with dental laboratories and can provide more precise shade matching and custom layering for natural-looking results. If you have had a crown in the past that did not look or fit right, or if your case involves several teeth, a consultation with a prosthodontist is a reasonable next step. You can learn more about this specialty on the prosthodontics page.
Find a Prosthodontist Near You
If your crown involves a front tooth, an implant, multiple teeth, or a case that feels complicated, a prosthodontist has the focused training to help. Use the My Specialty Dentist directory to search for a prosthodontist by location, read about their background, and book a consultation. You can start your search on the prosthodontics page.
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