A dental crown covers an existing tooth and can be either temporary or permanent. Although crowns are made from different types of material – such as gold alloy, stainless steel, or chromium alloy, for example – one of the most common materials used for crowns is porcelain.
Purposes of a Dental Crown
Crowns can be used in a variety of different circumstances:
- To restore a damaged tooth to a like-new condition
- To protect what little remains of an original tooth that has an exceptionally large filling
- To improve the appearance of a tooth that is discolored or shaped poorly
- To protect a weakened tooth
Why Porcelain Crowns are Popular Choices
There are two types of porcelain crowns available: porcelain-fused-to-metal crowns and all-porcelain crowns. Both types are popular because they can be made to closely match the color and overall appearance of other natural teeth, and they don’t present a problem for people with allergies to metal.
A porcelain-fused-to-metal crown is quite durable, but over time the underlying metal may begin to show around the base of the crown. This makes a porcelain-fused-to-metal crown a good choice for teeth in the back of the mouth.
All-porcelain crowns, on the other hand, can be made to more closely match the natural appearance and color of other teeth, although they’re not as durable as porcelain-fused-to-metal crowns. This makes an all-porcelain crown an excellent choice for teeth that are visible in the front of the mouth.
Talk to your dentist to find out more information and determine if a porcelain crown is right for you.
Source: WebMD http://www.webmd.com/oral-health/guide/dental-crowns
Upper Denture | Flickr – Photo Sharing! : taken from – http://www.flickr.com/photos/4blogs/6753670017/Author: Kathy McGraw http://creativecommons.org/licenses/by/2.0/deed.en
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