Initial LiSi Press is the first Lithium Disilicate ceramic ingot with High Density Micronization (HDM), a technology unique to GC that provides unsurpassed physical properties and the most natural, lifelike aesthetics of any pressed ceramic option on the market today. The result is the ultimate combination of strength and aesthetics, making Initial LiSi Press perfectly suitable for all types of restorations through all levels of transparency.