Crowns & Bridges

A crown is a tooth shaped “cap” used to cover a tooth. The crown can restore the shape, size and strength of the tooth as well as improve its appearance.

Lower Posterior Crown

A bridge literally bridges the gap between one or more missing teeth. A bridge is made up of two crowns with a false tooth or teeth in between. The false teeth are called pontics and can be made with a variety of materials. Dental bridges are either supported by the natural teeth surrounding the gap or with implants.

Three Unit Bridge

Crowns and bridges are best used to correct major functional or structural problems with individual teeth, replace missing teeth, or correct bite dysfunction. Bridges use crowns to provide a permanent, non-removable replacement for missing teeth. Both bridges and crowns are used in conjunction with other procedures to reestablish a healthy bite and allow for natural esthetics.

Whether you’ve lost a tooth due to accident, injury or disease, a bridge will not only fill the gap, but prevent repositioning of your remaining teeth. A bridge can help realign your bite, helping to improve your chewing function and speech.

Materials Used In Dental Crowns

Porcelain-Fused-to-Metal Crown
A porcelain-fused-to-metal crown, or PFM, has been the standard esthetic crown for over 40 years. Porcelain is baked on to a base layer of gold alloy metal. It is quite strong, but sometimes the underlying metal can show through as a dark line at the gum line.A PFM crown can be color matched to the adjacent teeth. More wear occurs to the opposing teeth with this crown than with metal crowns.

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Porcelain
 
 

All Gold
When it comes to needing a material that takes high forces of chewing, and can do so with limited thickness, nothing is better than gold. It is highly polished, bacteriostatic, and has superior tissue compatibility and longevity. It is our material of choice for crowns on second molars, where chewing forces are 9x greater than the forces at the front of the mouth.

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All Gold

Zirconia
The newest arrival in the field of tooth colored restorations, Zirconia supplies metal-like strength to support porcelain. Unlike metal, though, it can be tinted to a tooth shade and has translucent optical properties much like dentin. Crowns with a Zirconia base, therefore, look as much like natural teeth as anything we can offer our patients.

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Zirconia

Pressable Ceramics
Conventional porcelain crowns are created in a process where tinted clay is stacked into the shape of a tooth and fired in an oven into glass. Pressable ceramics utilize glass ingot that is heated and pressed into the desired shape onto which porcelain is then applied. The result is superior strength and optical qualities closely resembling natural teeth. These crowns require less tooth reduction and there must be enamel for the crown to bond to, or it looses strength.

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Pressable Ceramics Before
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Pressable Ceramics After

Lithium Disilicate

Lithium disilicate is a highly esthetic, high-strength all-ceramic material that can be conventionally cemented or adhesively bonded. Because lithium disilicate is a monolithic material, it eliminates the need for a framework. It offers a unique solution with its ability to offer a full contour restoration fabricated from one high-strength ceramic.