Advanced lithium disilicate CAD/CAM block. Two-part crystal composition, lithium disilicate, and virgilite, embedded in a glassy zirconia matrix. High flexural strength of 700 MPa. Simple and fast processing. Indicated for posterior and interior crowns, inlays, onlays, and veneers. Fast firing time of 4-1/2 minutes in the CEREC SpeedFire furnace. Furnace required postmilling.