How is layered zirconia made?

Layered zirconia, also known as zirconia crowns or zirconia veneers, is made through a multi-step process. Here is a general overview of how layered zirconia is made:

Preparation: The process begins with the preparation of the tooth or teeth that will receive the zirconia restoration. This may involve removing any existing restorations, shaping the tooth, and taking impressions or digital scans of the area.

Digital design: Using the impressions or scans, a digital design of the zirconia restoration is created. This design takes into account the specific dimensions and requirements of the patient's teeth and bite.

Milling: The digital design is then used to guide the milling or 3D printing of the zirconia restoration. This process involves shaping the zirconia material into the desired form based on the digital design.

Sintering: After the zirconia restoration is milled, it undergoes a sintering process. Sintering involves heating the zirconia at high temperatures to bond the particles together and give it the necessary strength and durability.

Layering: In the case of layered zirconia, additional layers of porcelain or ceramic may be added to the zirconia restoration to create a more natural appearance and mimic the translucency of natural teeth. This layering process involves applying and shaping the porcelain on the zirconia framework to achieve the desired aesthetic result.

Glazing and finishing: Once the layered zirconia restoration is layered and shaped, it is glazed and finished to ensure a smooth and polished surface. This step helps to enhance the appearance and durability of the restoration.