For many years Porcelain Crowns has been the most common tooth coloured crown provided in the UK. A combination of a very strong metal core surrounded by an outer layer of tooth coloured porcelain allows a crown that is strong but also fairly aesthetic.
Metal-Porcelain – They combine the strength of the metal along with the esthetics of porcelain. These are probably the most used crowns nowadays. Of course the porcelain is slightly more prone to chipping, but they are still tough.
There are different types of porcelain fused to metal dental crowns:
Precious alloy (89-92% gold alloy, yellow gold color)
Semi-precious alloy (54-62% gold alloy, “white gold”)
Non-precious (metal alloys, stainless steel color)