Dental Ceramic crowns are fixed prosthetic devices that are cemented onto existing teeth or implants, by a dentist or prosthodontist. Crowns are used commonly to entirely cover a damaged tooth or cover an implant. The dentist may recommend a crown to replace a large filling when there isn't enough tooth remaining, protect a weak tooth from fracturing, restore a fractured tooth, attach a bridge or cover a dental implant. It can also be used to cover a discoloured or poorly shaped tooth or cover a tooth that has had root canal treatment. Gaps left by missing teeth eventually cause the remaining teeth to shift resulting in a bad bite. In addition to strengthening a damaged tooth, bridges and crowns can be used to improve a tooth's appearance, shape, alignment and dental occlusion. The crown can also be placed on top of an implant to provide a tooth-like shape and structure for normal oral function. Porcelain or ceramic crowns can be matched to the colour of your natural teeth. Other materials include gold and metal alloys, acrylic and ceramic. These alloys are generally stronger than porcelain and may be recommended for back teeth. Porcelain fused to metal is often used because it is both a strong material and attractive in its appearance. Before either a crown can be made, the tooth (or teeth) must be reduced in size so that the crown will fit over it properly. After reducing the tooth/teeth, dentist will take an impression to provide an exact mold for the crown. If porcelain is to be used, one's dentist will determine the correct shade for the crown or bridge to match the colour of one's existing teeth.
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