A crown (or more commonly called a cap) is a dental restoration that covers the visible portion of the tooth (much like how a thimble would sit on a finger). There are many types of crowns that can be made. The most common crown is a full porcelain crown which is aesthetically superior to other types and just as durable. Other types are full metal, gold, and porcelain fused to metal. Crowns are very durable but do require strict oral hygiene to ensure a healthy environment.
Porcelain crowns are made not only to strengthen teeth, but also to increase the esthetic concerns of the area. They can be made to suit any esthetic demand. Some of the reasons to consider a crown are fractured fillings or teeth, decayed teeth, or teeth with large fillings that are put under a lot of force. Also, crowns can be placed to increase the esthetic demands of the area so as to better match other teeth.
The first appointment in making a crown involves numbing the area, taking a preliminary impression to make a temporary crown, picking a proper shade for the crown, and then reshaping and trimming the tooth to make room for a crown. At this appointment, a very accurate second impression is taken to make a crown, and a temporary crown is placed to cover the exposed tooth. All the molds and information is sent to a dental technician to make the crown.
The second appointment is made to ensure that the crown is esthetically acceptable, and the fit is good. Once approved, the crown is cemented, and the patient is given instructions for care and use. Crowns are a very common procedure in dentistry and can prolong the life of a tooth for many years.