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Metal-Ceramic Crowns: Everything You Need to Know
If you've ever needed a crown for a damaged or decayed tooth, you may have come across metal-ceramic crowns as an option. These crowns have been used in dentistry for decades and are still a popular choice today. In this article, we'll explore everything you need to know about metal-ceramic crowns, including their benefits, drawbacks, and how they compare to other types of dental crowns.
What Are Metal-Ceramic Crowns?
Metal-ceramic crowns are dental crowns that are made of two materials: a metal substructure and a porcelain ceramic coating. The metal substructure is typically made of a high-noble metal alloy, such as gold, or a base-metal alloy, such as nickel-chromium or cobalt-chromium. The porcelain ceramic coating is applied to the metal substructure to give the crown a natural-looking appearance.
The Benefits of Metal-Ceramic Crowns
There are several benefits to choosing a metal-ceramic crown over other types of dental crowns:
Durability
Metal-ceramic crowns are known for their durability and longevity. The metal substructure provides a strong foundation for the crown, while the porcelain ceramic coating gives it a natural appearance.
Aesthetics
Metal-ceramic crowns are a great option if you want a crown that looks natural. The porcelain ceramic coating can be color-matched to your existing teeth, so your crown will blend in seamlessly with your smile.
Versatility
Metal-ceramic crowns can be used to restore teeth in both the front and back of the mouth. They are also suitable for use in both primary and permanent teeth.
The Drawbacks of Metal-Ceramic Crowns
While metal-ceramic crowns have many benefits, there are also some drawbacks to consider:
Wear on Opposing Teeth
The metal substructure of a metal-ceramic crown can be abrasive and cause wear on the opposing teeth over time.
Aesthetics
While metal-ceramic crowns can look natural, they may not be as aesthetically pleasing as all-porcelain crowns. The metal substructure may show through the porcelain, especially if the gum tissue recedes over time.
Metal Sensitivity
Some patients may be sensitive to the metals used in the substructure of metal-ceramic crowns. This sensitivity can cause allergic reactions, inflammation, and other complications.
How Do Metal-Ceramic Crowns Compare to Other Types of Dental Crowns?
Metal-ceramic crowns are just one of several types of dental crowns available. Here's how they compare to some other popular options:
All-Porcelain Crowns
All-porcelain crowns are made entirely of porcelain ceramic and are known for their natural appearance. They are a good option for patients who are concerned about the aesthetics of their crowns but may not be as durable as metal-ceramic crowns.
All-Metal Crowns
All-metal crowns are made entirely of metal and are known for their durability. They are a good option for patients who need a crown on a back tooth but may not be as aesthetically pleasing as metal-ceramic or all-porcelain crowns.
Zirconia Crowns
Zirconia crowns are made entirely of zirconia, a type of ceramic material. They are known for their strength, durability, and natural appearance. They are a good option for patients who need a crown on a front tooth.
How Are Metal-Ceramic Crowns Placed?
Placing a metal-ceramic crown typically requires two appointments. During the first appointment, your dentist will prepare your tooth by removing the damaged or decayed portion of the tooth and shaping it to fit the crown. They will then take an impression of the prepared tooth and send it to a dental laboratory, where the metal substructure and porcelain ceramic coating will be created. In the meantime, your dentist may place a temporary crown to protect the prepared tooth.
During the second appointment, your dentist will remove the temporary crown and place the metal-ceramic crown. They will check the fit and appearance of the crown and make any necessary adjustments before cementing it into place.
Caring for Metal-Ceramic Crowns
Caring for metal-ceramic crowns is similar to caring for your natural teeth. You should brush twice a day, floss daily, and visit your dentist regularly for check-ups and cleanings. You should also avoid chewing on hard objects, such as ice or hard candy, and avoid using your teeth as tools, such as to open packages.
Conclusion
Metal-ceramic crowns are a popular option for restoring damaged or decayed teeth. They offer a combination of durability and aesthetics, making them a versatile choice for patients. While they have some drawbacks, such as wear on opposing teeth and metal sensitivity, they are still a great option for many patients. If you're considering a metal-ceramic crown, talk to your dentist to see if it's the right choice for you.
FAQs

Are metal-ceramic crowns expensive? Metal-ceramic crowns are generally less expensive than all-porcelain crowns but more expensive than all-metal crowns.
How long do metal-ceramic crowns last? Metal-ceramic crowns can last for 10-15 years or longer with proper care.
Are metal-ceramic crowns noticeable? While metal-ceramic crowns can look natural, the metal substructure may show through the porcelain, especially if the gum tissue recedes over time.
Can you be allergic to metal-ceramic crowns? Some patients may be sensitive to the metals used in the substructure of metal-ceramic crowns. This sensitivity can cause allergic reactions, inflammation, and other complications.
Can you whiten metal-ceramic crowns? No, you cannot whiten metal-ceramic crowns. If you want to improve the appearance of your crowns, you may need to have them replaced with new ones.