Aesthetic dentistry - Zirconium crown
The newest achievement of the modern aesthetic dentistry is the so-called zirconium dioxide crown which is fully metal free.
What is this material: zirconium dioxide?
Zirconium dioxide is a natural mineral sometimes known as zirconia (not to be confused with zircon), it is a crystalline oxide of zircionium. Zirconia mining occurs worldwide in
Several different oxides are added to zirconia to stabilize the tetragonal and cubic phase, for dentistry purposes they use yttrium dioxide (Yttria = stabilized zirconium), and then zirconia is formed into blocks. From the block the technician could create zirconium crowns manually or by CAD-CAM systems. The CAD-CAM is a professional computer-controlled ’tooth-carving’ machine). The picture below represent zirconium blocks.
It makes no difference what method is used by the technician, but it is important to know that a cap will be carved out from the pre-manufactured zirconium block. This cap will be the base or frame of the crown and it will fit perfectly on the stump. This direct contact between the cap and tooth makes the importance of zirconium dioxide because this mineral material is totally metal-free it and anti-allergenic therefore it is suitable for everyone.
Zirconium dioxide has transparent and translucent features therefore the crown made from zirconia is aesthetic and perfectly similar to the original tooth. The picture below represents the difference between porcelain-fused-to-metal (on the left) and zirconium dioxide dental crown (on the right).
How will the zirconium dioxide crown be placed onto your tooth?