This latest advance allows a computer scan to mill out a ceramic crown. This eliminates the need for those unpleasant impressions, or having to wear temporary crowns. These crowns are made from E-Max ceramic blocks and produce crowns that are up to 20 times stronger than porcelain fused to metal crowns. The milling process takes approximately 20-30 minutes. During that time, the patient relaxes in our private lounge complete with recliners, television and refreshments.