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Types of Crowns
Rendering of jaw with dental crown

What are Crowns For?

Crowns are used to cover and strengthen damaged teeth. They also improve the tooth’s appearance, alignment, and shape. We also place crowns on top of dental implants and bridges for a more natural shape and function. Once it is placed, only a dentist can take it out.

To make crowns, we first take an impression of the tooth or teeth they are meant to cover. However, first Dr. Feldman will reduce the size of the tooth so that the crown will fit properly. He may also insert a temporary crown while the permanent one is under construction.

When are Crowns Used?

We might prescribe a crown if:
•  You need to replace a filling that doesn’t have enough tooth remaining
•  You have a weak tooth that is in danger of fracturing
•  You want to restore a cracked tooth
•  You need a dental bridge
•  You need to cover a dental implant
•  You want to cover a tooth that is discolored or deformed
•  You want to cover a tooth that had root canal treatment

How many Types of Dental Crowns are there?

Nicholas W. Feldman, DDS, MBA uses four kinds of dental crowns.
•  Ceramic crowns restore front teeth. They are made of a porcelain-based material and blend well with the natural color of your teeth.
•  Porcelain-fused-to-metal (or PFM) crowns are attached to a metal structure. As a result, they are incredibly durable and have stronger bonds than porcelain crowns.
•  Gold crowns consist of alloys made of gold, copper and other metals. The benefits of these crowns are that they bind to the tooth tightly, they don’t fracture, and they don’t wear away the tooth.
•  Base metal alloy crowns are made from non-noble metals resistant to corrosion. They make very strong crowns, and compared to other crowns they require the removal of considerably less tooth before the fitting.

What are the Differences between these Types of Crowns?

One of the main differences between the all-porcelain crown and other crowns is the sealing ability of the former depends on what filling materials are used and the quality of the underlying tooth, while the other three crowns have adequate seals to prevent leakage.

Gold and metal alloy crowns are the most durable, while all-porcelain crowns are not as strong and are more susceptible to pressure (such as tooth grinding). However, crowns made of porcelain fused to metal are more durable. Both types of porcelain-based crowns effectively resist wear, but if the adjacent surface becomes rough, they can damage the surrounding teeth. Gold and metal alloy crowns, however, resist wear and are also easy on the surrounding teeth.

Crowns can loosen or even fall out, but they can last for decades if you maintain them properly. To do this, practice good oral hygiene. Brush and floss twice daily and come in for check-ups once every two months. Avoid grinding your teeth or chewing on hard foods or objects such as ice, as this will damage the crowns.

To schedule a consultation, please contact us at (907) 802-4519.
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