A crown is a type of dental restoration which completely
caps or encircles a tooth.
Zirconia or zirconium is the hardest known ceramic in
industry and the strongest material used in dentistry. The zirconia used in
dentistry is zirconium oxide, which has been stabilized with the addition of
Zirconium is a very hard white ceramic that comes in the
form of solid blocks of various shapes and sizes. For processing, it requires
sophisticated computer systems.
The first stage is where your teeth are assessed and
measured for a crown. The dentist will discuss the procedure with you before
preparing your affected tooth. This preparation involves the cleaning of the
tooth before reshaping (which reduces its size) with a small drill.
A small sliver of tooth is removed under a local anaesthetic
which ensures that the tooth is the correct shape for the crown.
A mould is made with dental putty which you will be asked to
bite into. This is used as a guide for the production of your new crown at a
The second stage is where you will be fitted with your new
crown. The tooth which will receive this crown is roughened with a special
dental acid which scratches the surface and increases the bond between crown and
The crown is then fitted onto your tooth. The dentist will
check its appearance and fit before cementing it into position. It is then
given a final polish.
A zirconia crown must be cared for in the same way as your