When Do You Need a Porcelain Crown?
When a filling gets large and there is a risk that a tooth will break, Dr. Burgess will recommend a crown. A crown covers the entire surface of the tooth. The outside of the tooth is shaved down, and then the crown is placed over it and cemented or bonded into place.
All Porcelain Crowns vs. Porcelain Fused to Metal
In years past, when a dentist wanted to use porcelain in a crown, it had to be baked onto a metal foundation in order to be strong enough. While the result is quite functional, there are some esthetic problems. The metal is dark and blocks any transmitted light. It is covered over with white opaquers to help it look natural, but you sacrifice the natural translucency that teeth are supposed to have. Also, porcelain fused to metal crowns will have a dark line at the gumline where the crown meets the tooth. This line may be hidden by the gums when the crown is first placed, but as the gums recede over the years it will become apparent. As you can see in the picture below, the result does not look very natural.
Fortunately, new bonding technology has changed all that. Now Dr. Burgess can bond your porcelain crown directly to your tooth without a metal foundation. Not only can these crowns function well even under strong chewing pressure, but they have all the beauty of your natural teeth. Their natural translucency sets them apart from other types of crowns. The surface glaze of the porcelain mimics enamel. The color blending can also exactly duplicate the appearance of teeth. Even up close, it’s difficult to tell an all-porcelain crown from a natural tooth.
Crowns in one visit
In most dental offices, porcelain crowns are placed in two visits. On the first visit, your tooth is shaved down, an impression is taken of the prepared tooth and sent to a dental laboratory. The dentist provides you with a temporary crown while you are waiting on your porcelain crown from the lab. Then you come in for a second appointment. The temporary crown is removed, the tooth is cleaned, and your permanent crown is fitted and cemented.
Here at Dr. Burgess’s office, we have the latest technology that allows your crown to be placed in one visit. A computer actually fabricates your crown while you wait in the chair. No temporary crown is needed, and no second visit. Click here for more information on our one-appointment CEREC crowns.