Zirconium – dioxide based aesthetic crowns: high technology in dentistry
The zirconium-oxide based crowns are the latest innovation of modern aesthetic dentistry.
The strong but grey metal framework of traditional metal ceramic crowns raised many problems:
- increasing number of metal allergy cases
- insufficient aesthetic end result: the metal frame of traditional metal ceramic crowns does not let light through, therefore the transparency of these crowns differs from that of natural teeth
To solve the above mentioned problems, zirconium dioxide based frames have been developed. A frame was necessary which is strong as a metal one but does not have the colour of metal, nor is made of it.
About the zirconium dioxide crown:
- the zirconium – dioxide frame is strong, even stronger than traditional metal frames, therefore provides a strong hold
- it does not contain metal nor it coloured metal: the frame itself is already white or tooth coloured
- the covering ceramic provides perfect aesthetic effect on a tooth coloured frame
- does not let light through, so it is perfectly suitable for covering grey teeth
- this is the only metal-free type of crown that is suitable not only for solo crowns, but also for preparing longer bridges to replace several gaps
Encarving zirconium-oxide frames does not happen with traditional methods. With the so-called CAD/CAM computer technique, extremely precise frames can be manufactured.
Of course, a zirconium crown can only be prepared with shoulder crown preparation, to ensure the perfect security of the periodontium. You do not have to be cautious about gum recession or inflammation, as in the case of traditional crowns.
Zirconium-oxide crowns are perfectly aesthetic, extremely precise and long-lasting, and above all, do not contain metal, therefore they are applicable in the event of metal allergy.
