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A replacement crown replaces part or all of the natural crown of a tooth. It is also called a crown or a cap. The visible part of the tooth is called the crown. It is joined to the root of the tooth which is in the jawbone under the gum. When all, or a large part of the original crown of a tooth has been destroyed, a replacement crown is made to restore the tooth.What are Indications for a Crown ? Post Root Canal treatment it is essential to crown teeth as they become brittle & crown Protects these teeth from fracturing.Fractured teeth need to be crowned.Teeth need to be crowned for cosmetic purpose in the anterior area. Discoloured teeth need to be crowned.Crowns also form a part of a bridge In case of missing teeth. How is a replacement crown prepared and made? The dentist will prepare the tooth, and remove any decay.An impression of the prepared tooth is taken using an elastic material. This is sent to the dental technician, where the replacement crown is made.A temporary acrylic crown will be fitted over the prepared tooth, while the replacement crown is being made.The new crown is then cemented onto the prepared tooth.Replacement crowns can also be used as supports for a bridge , where they are joined to artificial teeth to fill a gap between the teeth.