Zirconia Products

Essentially, zirconia can be classified into three groups, being:

• Monolithic ultra-translucent zirconia (Cercon XT / Cercon XTML)
• Monolithic high strength translucent zirconia (Cercon HT)
• Layered zirconia (PFZ)

The aesthetic and functional requirements of a case dictate which of the three solutions is apt.  The below table may serve as a useful tool to outline their applications:

Type	Brand	Description	Required Clearance (Manufacturer’s Guidelines stated only)
Monolithic ultra-translucent zirconia	Cercon XT / Cercon XTML	Ultra-Translucent Zirconia 750MPa flexural strength (approx.) highly translucent cubic zirconia Cercon XT is solid colour throughout whereas Cercon XTML has more translucency towards the incisal as it is a multi-layer zirconia Suitable for anteriors as well as posteriors if matching mid-highly translucent dentition Bridges up to three units Patented True Colour Technology (TCT) Premium German-made zirconia	0.6mm occlusal 0.5mm radial
Monolithic high strength translucent zirconia	Cercon HT	≥1,200 MPa flexural strength translucent zirconia Suitable for anteriors if matching mid-low translucency dentition Bread and butter posterior option Up to full-arch bridges Patented True Colour Technology (TCT) Premium German-made zirconia	0.5mm occlusal 0.4mm radial
Layered Zirconia	Cercon XT or Cercon HT or Ivoclar Zenostar	An ideal option for highly aesthetic anterior work, especially when deep characterisation is required/wanted Zirconia substructure depends on the required shade, whether or not the preparation is discoloured and reduction afforded (don't worry... the technician will select which one!) Ivoclar Zenostar is used for cases with dark or discoloured preparations due to it's high level of opacity Full-range of VITA 3D Master, VITA Classical shades as well as special effects available Zirconia substructure can be made opacious to aid in blocking out discoloured preparations (afforded reduction and severity of discolouration dependent) Lingual/palatal can be left as monolithic zirconia for tooth preservation/additional strength Premium German-made zirconia	Substructure is Cercon HT or Ivoclar Zenostar: 0.5mm occlusal 0.4mm radial Substructure is Cercon XT: 0.6mm occlusal 0.5mm radial

Example of layered Cercon HT crowns

Example of monolithic Cercon XTML crowns

Example of a monolithic Cercon XT bridge

Example of monolithic Cercon HT crowns

Example of monolithic Cercon XT crowns

Example of PFZ crowns