![]() During the firing process, new virgilite crystals are formed and embedded in a zirconia enriched glass matrix. The innovative microcrystalline composition with the material virgilite is patent pending in both the USA and the EU. The fast-firing time is mainly made possible by the special and new composition of the ceramic made of lithium disilicate and virgilite, a lithium aluminum silicate. Before firing, the application of a glaze is necessary to achieve the final properties, such as the high biaxial flexural strength of over 700 MPa. Compared to other glass ceramics, this represents a time saving across the entire manufacturing process of about 44 percent. A crown can be fired in the CEREC SpeedFire in just 4 minutes and 30 seconds. The new CEREC Tessera blocks have proven to be very strong, meet very high esthetic demands and accelerate the entire manufacturing process within the chairside workflow by shortening the glaze firing time. The reason is mainly esthetics – patients usually want restorations looking nearly identical to their natural teeth.Īdvanced material properties due to optimized microstructure High-strength glass ceramics are frequently used by dentists for CAD/CAM-fabricated restorations. CEREC Tessera is now available on the European market. CEREC Tessera blocks are therefore an attractive option within single-visit dentistry. The glaze firing takes only four and a half minutes, so the entire manufacturing process is accelerated. The advanced lithium disilicate (ALD) ceramic is characterized primarily by its robust strength and high esthetics. For more information, go to /en/explore/restorative/ Sirona has introduced CEREC Tessera Advanced Lithium Disilicate CAD/CAM Blocks, a new material for CAD/CAM-fabricated restorations for anterior and posterior regions. Andrew Hall, a general dentist from Colorado Springs, Colorado, who works with Dentsply Sirona.ĬEREC Tessera blocks are now available in the United States and are indicated for fully anatomical single-tooth restorations in the anterior and posterior regions, including crowns, inlays, onlays, and veneers. The time savings are tangible and really the whole process is just simple, yet the result is a robust restorative material,” says Dr. “The extremely fast matrix firing cycle is unlike anything we have seen. Restorations with a wall thickness of 1.5 mm can also be conventionally cemented with a glass ionomer or hybrid glass ionomers, such as the company’s Calibra Bio cement. All CEREC Tessera restorations can be fixed adhesively (for example with Dentsply Sirona’s Prime&Bond and Calibra Ceram). The high-strength nature of the blocks further provide clinical benefits via low minimal wall thickness preparation guidelines and the ability to use conventional cementation. The same microcrystal composition (lithium disilicate and virgilite) of CEREC Tessera blocks that is responsible for the material’s high biaxial and flexural strength also contributes to its highly esthetic and dynamic light refraction, transmission, and absorptive properties that mimic the visual vitality of natural dentition. The dense interwoven crystal composition of CEREC Tessera blocks is key to their high strength and helps suppress the presence of microcracks and subsequent crack propagation. Together, these material constituents combine to create a robustly reinforced, high-density restorative material. Tessera blocks are composed of a new material containing virgilite. The fast firing time is mainly made possible by the special and new composition of the ceramic made of lithium disilicate and virgilite, a lithium aluminum silicate, according to Dentsply Sirona.
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