Dental Tips Blog


Porcelain Crowns

Posted in Crowns

Porcelain crowns are usually used to repair teeth that have large older fillings, large areas of decay, on top of a dental implant, or have been treated with a root canal. While porcelain crowns are typically used for the front teeth, they can also be placed on the back teeth as well and are often used instead of other materials that may be less aesthetic. Porcelain dental crowns allow dental patients to laugh and smile without metal restorations showing.

Each porcelain crown is carefully matched so that its shade is the same color as the surrounding teeth. The color of a porcelain crown is permanent, so if you’re consider whitening, you ought to do so before having your crown made so that it will match the rest of your teeth. You will work with your dentist using a shade guide in natural lighting to choose the color that has the most natural appearance in your mouth. If you need several different crowns it is best to have them made all at the same time, so the dental laboratory can make the colorations as identical as possible.

There are three types of porcelain crowns. One is an all-porcelain crown that is made of the ceramic material through-and-through. The second type is the most common, and is a porcelain-fused-to-metal base crown. The last type of porcelain crown is a porcelain-faced crown, where only one side of the crown is porcelain (the side that shows when you smile) and the rest of the surfaces are metal.

Tooth colored porcelain crowns are beneficial because they appear as a natural tooth. Most people find it difficult to differentiate the appearances between a natural tooth and a dental crown.


Types of Crowns

Posted in Crowns

A crown (also called a cap) is a tooth shaped cap used to restore a damaged tooth that cannot be repaired with a filling.  Crowns are also attached to a dental implant to replace a missing tooth and sometimes used for cosmetic purposes to improve the appearance of a tooth that is misaligned, discolored, and/or misshapen.  To place a crown, a dentist will remove the damaged material of the natural tooth and shape the remaining portion of the tooth into a post that the crown will be cemented to.

Crowns are made from several different types of materials including porcelain or ceramic, stainless steel, gold or gold alloys, and other metal alloys such as nickel or chromium.  Crowns can also be made from a metal with a thin layer of porcelain bonded to the surface.

Temporary crowns are used to protect a tooth while the permanent crown is being fabricated in a laboratory. Temporary crowns are usually made from stainless steel or acrylic.  They are meant to be in place for only few weeks before they are replaced with a permanent crown.

Gold and other metals have been used to make crowns for decades.  They are very strong and durable and rarely crack or chip. Metal crowns also have the advantage of wearing at a similar rate to natural teeth.  They cause less wear on opposing teeth and generally don’t cause changes with the patient’s bite as they wear since they wear down just like the rest of the teeth.

Porcelain crowns are more aesthetically pleasing than metal crowns because they look like natural teeth.  However, they not as durable as metal crowns and cause more wear on opposing teeth than metal crowns.

Metal crowns with a layer of porcelain have the durability of all metal crowns and the aesthetic appeal of porcelain crowns.  If wear is a concern, the contact surface of a porcelain-fused-to-metal crown can be left bare metal to avoid wearing down the opposing teeth.

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