Dental crowns (sometimes called porcelain crowns) are cemented into place and fully cover the portion of tooth lying at or above the gum line, whereas fillings cover only a portion of your tooth. Dental crowns encase the entire aspect of your tooth, and effectively becomes the tooth's new surface. Crowns are used to restore a tooth to its original shape, to strengthen a tooth, or to improve its cosmetic appearance. Typically they are made of porcelain, hence the reference to porcelain crowns. The life expectancy of a tooth crown is anywhere between 5-15 years, depending on the stress of environmental factors such as chewing, biting, grinding or trauma. Find out more about teeth crowns, or dental crowns, here.
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