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.
"Hi Matt, Thank you, your advice to replace those old amalgam fillings was the best thing I have done in years of enduring discomfort from my well drilled, mercury filled teeth. Great professional advice and a great result."