Crown refers to the
restoration of teeth using materials that are fabricated by indirect methods which are cemented into place. A crown is used to cap or completely cover a
tooth.Traditionally, the teeth to be crowned are prepared by a
dentist and records are given to a
dental technician to fabricate the crown or bridge, which can then be inserted at another dental appointment. The main advantages of the indirect method of tooth restoration include:fabrication of the restoration without the need for having the patient in the chairthe utilization of materials that require special fabrication methods, such as
castingthe use of materials that require intense heat to be processed into a restoration, such as
gold and
porcelain. The
restorative materials used in indirect restorations possess superior mechanical properties than do the materials used for direct methods of tooth restoration, and thus produce a restoration of much higher quality.
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