Zircon is the latest high quality material used to make crowns and bridges. Zircon-ceramic crowns and bridges are characterized by biocompatibility and precision, while maintaining the natural aesthetics of the teeth. Since mechanical resistance is already achieved with a thickness of 0.4 m, less grinding of the natural tooth is required before placing the crown. As zircon-ceramic crowns are made very precisely, cleaning is facilitated, and the irritation of the gums is reduced (due to the possibility of high polishing and accuracy of access to the crown). The advantage of these crowns is the impossibility of the appearance of the so-called ‘black edge’ due to gum retraction because there is no metal in the construction.
