Full ceramic or all porcelain dental crowns provide the best natural color match than any other crown type and may be more suitable for people with metal allergies. However, they are not as strong as porcelain-fused-to-metal crowns and they wear down opposing teeth a little more than metal or resin crowns. Full ceramic crowns are a good choice for front teeth.
There are different types of full ceramic crowns. Depending of the technique and materials used, they can be classified as press ceramic (IPS Empress Esthetic, VITAPM® 9 Press Ceramic System), alumina based (VITA In-Ceram® ALUMINA) and zirconium oxide based (IPS e.max ZirCad, VITABLOCS® Mark II for CEREC®/inLab®) crowns.
Latest technology of full ceramic crowns called CAD/CAM technique, allows us to produce crowns with high aesthetic values and outstanding physical properties and durability even on posterior teeth. Invention of Zirconium Oxide based materials provides us with possibility not only to make single crowns, but also producing long span circular bridges.