.Most dental crowns are made of fused porcelain metal.
The metal can cause receding gums and the appearance of a blue / black streak in the gums around the crown.
Zirconia crowns make it possible to achieve aesthetics at the highest level. Zircon has the ability to mimic almost any shade of tooth with almost perfect accuracy.
In addition, the zirconia crowns have a higher fit to the gingival border, higher biocompatibility.
The zirconia crowns will not paint the gums blue or black.
Zirconia is a solid material with a high melting temperature and high mechanical strength that exceeds that of various metals. The main disadvantage – the price lied from the metal crowns. The reason is the high cost of the raw material and the special equipment required to handle the raw material.