What is a zirconia disc

When we say zirconia discs we are usually referring to dental zirconia discs or blocks, zirconia discs are a thin, round material made of high-purity zirconium dioxide with yttrium oxide that is processed by CAD CAM systems for the fabrication of customized crowns, bridges, and implant restorations in restorative dentistry. Because zirconium oxide is inert, zirconium oxide disks are biocompatible, and it is known for its high strength, long durability, and biocompatibility, making it a popular choice for creating long-lasting, aesthetically pleasing dental restorations.

Key features of zirconia discs:

High strength and durability:

According to ISO 6872, the flexural strength of zirconia trays should be 500 MPA (anterior) 800 MPA (posterior) So zirconia trays are able to withstand the pressure of chewing and grinding for both anterior and posterior teeth.

Biocompatibility:

According to ISO 10993, zirconia blocks need to be tested for biocompatibility to ensure that zirconia is well tolerated by the human body and can minimize the risk of allergic reactions or tissue irritation.

Aesthetics:

According to ISO 13356, zirconia needs to have good semi-transparency. Zirconia restorations can mimic the natural appearance of teeth, presenting a natural and aesthetic appearance, with a typical translucency of 49% for use as anterior teeth, and 40% semi-transparency for use as posterior teeth.

Precision:

The tolerance of zirconia disks is, ±2 mm within 10 mm and ±0.2 mm within 1 mm. Computer-assisted zirconia disc milling technology allows for precise restorations with tight tolerances.

Efficient:

Zirconia discs shorten the restoration cycle, enabling patients to complete their restorations the same day. Today's high-efficiency dental milling machines mill a single crown in about 15 minutes, with a fast burn time of 90 minutes, and high-efficiency dental laboratories are fully capable of single-day installations.

Variety of options:

Zirconia discs can be classified according to sintering, including pre-sintered and fully sintered, or according to transparency, strength, and color, such as highly translucent zirconia blocks, and super transparent zirconia blocks.

Main Applications:

Zirconia dental trays are mainly used to fabricate crowns, bridges, implants and other complex types of dental restorations.

Zirconia Dental Plate Types:

Pre-sintered:

These dental flakes are partially sintered, the mainstream zirconia dental discs on the market today are the pre-sintered type, which undergoes a temperature of 1050 degrees Celsius in the factory, and the pre-sintering time is usually 4 days, and the zirconium oxide discs have a final sintering temperature of 1450-1530 degrees Celsius, so they need to be sintered in a dental laboratory, additionally, to finally reach full strength.

Fully sintered:

These dental zirconia blocks are fully sintered and ready to use.

High Transparency:

These CAD CAM zirconia trays are highly transparent and mimic the natural appearance of teeth, especially front teeth.

Pre-colored:

These CAD CAM zirconia trays come with preset shades to simplify the process of creating restorations.

Multi-layered:

These CAD CAM zirconia trays have multiple layers of color for a more natural and subtle shade match.

Changsha Honchon Technology Co., Ltd. is a professional dental zirconia block manufacturer established in 2008. Our products have passed FDA, CE ISO 13485 and other international certifications. The price is affordable. Welcome to contact us for product information.

Email: luis@honchon.com

WhatsApp: +86 13055185196