Ceram.x Spectra ST is nano-ceramic, light cured, radiopaque, universal composite based on the novel SphereTEC filler technology (spherical, granulated fillers). Former ceram.x universal -composite has a high strength and is non-sticky, resistant to discoloration, easy to sculpt and polish. Simplified color system: 5 universal CLOUD shades of intermediate translucency with chameleon effect (A1-A4) cover the full Vita range. Additionally, one bleach shade (BW) is available for bleached teeth. Area of application: for all cavities, posterior and anterior. Available in two viscosities: HV - high viscosity and LV - low viscosity.