Zirconia

Ultra High Translucent (UHT)

Ultra High Translucent (UHT)

  • Applications: full contour anterior and posterior, inlays, onlays, crowns
  • Can be used for a 3-unit bridge
  • Super translucent and high strength
  • Mills very easy

Ultra High Translucent is not high translucent, but super translucent! Its aesthetics resemble that of natural teeth. Not only does it come with lithium disilicate like translucency, but with twice the strength at 760 MPa. It’s optimal for full contour anterior restorations, but can also be used for posterior restorations due to the hard density of the material.

Technical data

Typical properties of sintered body
Radioactivity 0.012Bq/μg
Flexural Strength *761 MPa
Fracture Toughness *5.18 MPa m1/2
CTE 7.27×10¯⁶ 1/⁰C
Chemical Solubility 19 ug/cm2
Bulk Density 6.03 g/cm3
ZrO2+HfO2+Y2O3 99.8 %
Hardness [HV] 1250

Type ll Class 4 (ISO 6872 Compliant)

*Highest value measured by FKG Lab, Germany

Sizes

Indications Sizes
’98-er (Open, Wieland compatible) 12, 14, 16, 18, 20, 25 mm
’95-er (ZirkonZahn compatible) 12, 14, 18, 22 mm
’71-er (Amann Girrbach compatible) 12, 14, 16, 18, 20, 25 mm
‘100-er (DentMill compatible – USA) 12, 14, 16, 18, 20, 25 mm

Compability

Milling Systems
98mm (Wieland Compatible)
95mm (ZirkonZahn Compatible) – Coming Soon!
71mm (Amann Girrbach Compatible)
100mm (DentMill Compatible)

Colors

Shades Available
White
Preshaded coming soon..

High Translucent (HT)

High Translucent (HT)

  • Applications: full contour, frameworks, inlays, onlays, crowns, copings
  • High strength and high translucent
  • Highest fracture toughness value on the dental market
  • Perfect shrinkage

High Translucent (HT) zirconia can be used for anterior and posterior restorations, full contour and frameworks. It’s made with Japanese raw materials, has very high flexural strength and while made to be highly translucent, it was primarily developed/optimized to have the highest fracture toughness value on the dental market today.

Normal zirconia quoted from the University of Iowa study has a fracture toughness value between 4 and 5 (MPa m1/2), but the Kerox HT is between 15-16 – really off the chart!

Zirconia manufacturers often refer to Megapascals (MPa) when referring to the strength of their dental ceramic products, however strength can actually be measured in two different ways. MPa is a one time measurement of flexural or bending strength, which is basically how much force the material can take when pressing down from above until it breaks. The other measurement of strength which is often neglected and can be considered an even more important discussion point, is fracture toughness. It measures how many times the material can take that force and shows how the finished tooth reacts to repeated pressure and mechanical impact in the mouth. Since we don’t only chew once with our mouths, but many times a day for years and years, a quality zirconia should have a high fracture toughness value.

The constant chewing and drinking hot and cold liquids can cause zirconia to shrink and expand, further causing mechanical stress. If there’s enough of these repeated stresses, the material can develop micro cracks and possible chipping – fracture toughness measures how many of these actions the material can withstand before this occurs and how far the micro crack will penetrate into the material. The HT has a greater ability to withstand these micro cracks. If there is a crack, it stops and will not travel across the zirconia and break in the mouth, due to its self-healing properties. This is a great advantage for the dentist and a major benefit to the patient.

Technical data

Typical properties of sintered body
Radioactivity 0.028 Bq/μg
Flexural Strength *1371 MPa
Fracture Toughness *16.68 MPa m1/2
CTE 10.6×10¯⁶ 1/⁰C
Chemical Solubility 0.3 ug/cm2
Bulk Density 6.08 g/cm3
ZrO2+HfO2+Y2O3 99.8 %
Hardness [HV] 1250

Type ll Class 5 (ISO 6872 Compliant)

*Highest value measured by FKG Lab, Germany

Sizes

Indications Sizes
’98-er (Open, Wieland compatible) 12, 14, 16, 18, 20, 25 mm
’95-er (ZirkonZahn compatible) 12, 14, 18, 22 mm
’71-er (Amann Girrbach compatible) 12, 14, 16, 18, 20, 25 mm
‘100-er (DentMill compatible – USA) 12, 14, 16, 18, 20, 25 mm

Compability

Milling Systems
98mm (Wieland Compatible)
95mm (ZirkonZahn Compatible)
71mm (Amann Girrbach Compatible)
100mm (DentMill Compatible)

Colors

Shades Available
White
H1
H2
H3
H4

High Strength (HS)

High Strength (HS)

  • Applications: PFZ substructures, crowns, copings, long span bridges
  • High flexural strength and low translucency
  • Perfect shrinkage

High Strength (HS) zirconia has optimal milling properties and is recommended for porcelain fused to zirconia framework restorations. The material accepts porcelain layering exceptionally well and its low translucency perfectly covers abutments. It comes with an extremely high flexural strength (close to 1500 MPa) and higher fracture toughness for long span bridges and difficult jobs where additional strength is required.

Technical data

Typical properties of sintered body (Non-shaded)
Radioactivity 0.012Bq/μg
Flexural Strength *1460 MPa
Fracture Toughness *10.66 MPa m1/2
CTE 10.3×10¯⁶ 1/⁰C
Chemical Solubility 11.5 ug/cm²
Bulk Density 6.065 g/cm3
ZrO2+HfO2+Y2O3 99.6 %
Hardness [HV] 1250

Type ll Class 5 (ISO 6872 Compliant)

*Highest value measured by FKG Lab, Germany

Sizes

Indications Sizes
’98-er (Open, Wieland compatible) 10,12, 14, 16, 18, 20, 25 mm
’95-er (ZirkonZahn compatible) 10,12, 14, 18, 22 mm
’71-er (Amann Girrbach compatible) 10,12, 14, 16, 18, 20, 25 mm
‘100-er (DentMill compatible – USA) 10,12, 14, 16, 18, 20, 25 mm

Compability

Milling Systems
98mm (Wieland Compatible)
95mm (ZirkonZahn Compatible)
71mm (Amann Girrbach Compatible)
100mm (DentMill Compatible)

Colors

Shades Available
White
*S1
*S2
*S3
*S4

High Translucent Multilayer (HTML)

High Translucent Multilayer (HTML)

  • Applications: full contour crowns and long span bridges
  • High strength and high translucent
  • Perfect shrinkage

High Translucent Multilayer (HTML) zirconia can be used for full contour, frameworks and for long span bridges. It offers 6 layers of natural gradient colors from cervical to incisal, and high translucency for life-like esthetics, and high strength for unparalelled mechanical properties.

Technical data

Typical properties of sintered body
 Radioactivity  0.010 Bq/μg
 Flexural Strength  >1000 MPa
 Fracture Toughness  5 MPa m1/2
 CTE
 Chemical Solubility  8 ug/cm2
 Bulk Density  6.07 g/cm3
 ZrO2+HfO2+Y2O3  99.8 %
 Hardness  [HV] 1250

Type ll Class 5 (ISO 6872 Compliant)

Sizes

Indications Sizes
 ’98-er (Open, Wieland compatible)  14, 20 mm
 ’71-er (Amann Girrbach compatible)  14, 20 mm

Compatibility

Milling Systems
 98mm (Wieland Compatible)
 71mm (Amann Girrbach Compatible)

Colors

Shades Available
 A2     A3     B1     C2     D2
 Other shades on demand

Ultra High Translucent Multilayer (UTML)

Ultra High Translucent Multilayer (UTML)

  • Applications: full contour crowns and bridges Up to 3 units for anterior restorations
  • Super translucent and high strength
  • Mills very easy

Ultra High Translucent  Multilayer (UTML) zirconia. It’s optimal for full contour crowns and bridges up to 3 units for anterior restorations. It offers 6 layers of natural gradient colors from cervical to incisal, and high translucency for life-like esthetics.

Technical data

Typical properties of sintered body
 Radioactivity  0.011 Bq/μg
 Flexural Strength  >700 MPa
 Fracture Toughness  3,5 MPa m1/2
 CTE
 Chemical Solubility  4 ug/cm2
 Bulk Density  6.01 g/cm3
 ZrO2+HfO2+Y2O3  99.8 %
 Hardness  [HV] 1250

Type ll Class 4 (ISO 6872 Compliant)

Sizes

Indications Sizes
 ’98-er (Open, Wieland compatible) 14, 20 mm
 ’71-er (Amann Girrbach compatible) 14, 20 mm

Compatibility

Milling Systems
 98mm (Wieland Compatible)
 71mm (Amann Girrbach Compatible)

Colors

Shades Available
 A2      A3      B1      C2      D2
 Other shades on demand