A dental crown may be needed if tooth is badly broken down, i.e. if it has a large or worn out filling, or has a large amount of decay. With old technology, dental crowns were made with a metal foundation; although strong, they often appeared dull and lifeless and it is common to have the metal showing as grey or black around the gum line. Today we are able to offer metal free crowns; made completely from ceramic, these crowns are beautiful and natural looking. New bonding technology allows us to bond the crown directly to your tooth so that they become one unit, almost like an enamel replacement. Ceramic crowns are the treatment of choice for teeth that show when you smile.