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Celtra® Duo

Your Digital Crown

The New DNA of High Strength Glass Ceramics

Together with the Fraunhofer Institute and VITA, DENTSPLY has developed a new class of materials for high-strength glass-ceramic from zirconia-reinforced lithium silicate: ZLS.

ZLS has a unique microstructure compared with traditional glass ceramics. It comprises three distinct properties

  • High glass content (high translucency, opalescence, fluorescence)
  • 10% Zirconia (high mean flexural strength)
  • Very small lithium silicate crystals (ultra-fine microstructure)


  • Impression Technique Digital or traditional
    Material Zirconia-reinforced lithium silicate
    Indications Full mouth, crowns
    Recommended use Posterior crowns
    Margins Chamfer or shoulder
    Cementation Adhesively bonded
    Etch Hydrofluoric acid
    Recommended adhesive 3M ESPE RelyX™ Ultimate
    Turnaround Time 5 lab days
    Method of manufacture Digitally designed and manufactured
    Aesthetics ★★★☆☆
    Shades / colouring No internal effects, standard shades
    Strength ★★★★☆
    Add-on options N/A
    Benefits High durability extreme strength metal-free, exceptional accuracy
    Warranty 10 years
    Type Standard Crown
    Popularity ★★★★☆
    Strength 370MPa


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