ST White and ST Pre-Shaded are made from the same raw material, but there are some colorants added for ST Pre-Shaded. Low strength material, with super high translucency, which is suitable for full anatomical crowns and bridges, rather than posterior teeth, as it does not have enough strength. It is a mono-shaded block, as it has the same shade from incisal to cervical. The users should choose from the corresponding shades to match the natural teeth. It is available in thickness of 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, and 25mm.