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It is important that the Zirconia substructure is milled to full contour, which ensures maximum strength where needed. The Zirconia framework is reduced in key areas to enhance the aesthetic of the restoration. This is done using Tungsten Carbide burs at a low speed so as not to stress the raw zirconia.
It is vitally important to understand that the framework will shrink by up to 30% post sinter and experience is key. The framework is reduced sufficiently to allow for the veneering of ceramic, especially in areas where translucency is required.
The framework is then coloured specifically to the patient’s individual needs, using specialised coloring liquids. Post sintering the Zirconia framework is then ready for entering, using various enamel and effect ceramic powders.
The end result is a perfectly matching finished crown.
From the blog
We are really excited to have Tony, CDL's Senior Technician and Ceramics Lead, speak at the upcoming North of England Dentistry Show (dentistry.co.uk) on March 12th at Manchester Central Convention Complex. He will be speaking about how in a digital age restorative...