Dental crown. Animation showing a dental crown being fitted to a tooth. This procedure is carried out to restore a decayed tooth. First the tooth enamel is removed with a file and then an impression is taken of the jaw. The crown is made, using a cast made from the impression, and fitted over the tooth. If a porcelain crown is used, they are often fused with a metal interior to increase the crown's strength.HD master is flattened onto a black background, as seen in this preview. The original file has a transparent alpha channel and is available as the HD master of clip K003 3747.