Although CEREC® crowns can be manufactured in porcelain, zirconia, resin, Telio® and composite materials, porcelain and zirconia are the two most popular types. CEREC® crowns are never made of metal. Continue to reading to learn more about each type and which one could be right for you.
Here are a few reasons many people prefer porcelain, as well as a couple of potential concerns.
Extremely durable, a porcelain crown of this type can withstand up to 450 pounds of force per square inch. Because the average mouth can only chew with about 250 pounds of force per square inch, there should be few, if any, issues with a porcelain crown being damaged from natural wear and tear. It can, however, be a bit brittle if hit just right, so an awkward fall may chip a porcelain crown. This type of crown lasts an average of 5-15 years, depending on care and maintenance.
Porcelain looks extremely natural, so many patients prefer this type of crown for teeth in and towards the front of the mouth. It can be easily matched to the exact color of the surrounding teeth, so it will be practically unnoticeable to others. It is also resistant to staining and should not show signs of wear easily. Porcelain reflects light well, giving it a luster that should not fade over time.
Because this material is metal-free, there is no risk of the crown causing gum irritation or an allergic reaction. It is safe for all people.
Find out the benefits and drawbacks of a zirconia crown.
Able to withstand a force of 850 pounds per square inch, a zirconia crown is ideal for patients who have problems grinding or clenching their teeth. Because of its durability, this type of crown is more frequently used on molars and teeth towards the back of the mouth. A zirconia crown is able to last 10-15 years or more, even with the more intense wear it can undergo.
Zirconia has a bit of an opaque look, which is less natural than porcelain and more difficult to match to the surrounding teeth. This is another reason this type of crown is generally reserved for the less visible back teeth. It is non-porous, so it should not stain as time goes on. Dental professionals are easily able to match the grooves in the natural teeth to the grooves in the crown, making it feel natural.
According to Healthline, many dentists prefer to use zirconia crowns because they are more biocompatible. This results in fewer cases where the patient has a negative reaction to the crown, such as inflammation or another immunological response.
Whether a patient chooses porcelain or zirconia, the CEREC® crown should look and feel natural and last for many years. It should also not cause any negative reactions in the mouth or gums.
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