What is Lithium disilicate?
'''Lithium disilicate''' is a [[chemical compound]]. Its [[chemical formula]] is Li<sub>2</sub>Si<sub>2</sub>O<sub>5</sub>. It is a [[glass]] [[ceramic]]. They are used as dental ceramics. Lithium disilicate has a biaxial flexible strength in the range of 360 MPa to 400 MPa. It has high hardness (5.92 +/- 0.18 GPa) and fracture toughness (3.3 +/- 0.14 MPa m<sup>1/2</sup>). [[File:Inlay krone lithium-disilikat situ.jpg|thumb|Inlay (Lithium disilicate)]] {{Chemistry-stub}} [[Category:Lithium compounds]]