Cerec in Lab (Sirona) System Compatible

ST Zir and HT Zir are both available.

ST Zir: super translucent zirconia for full contour crown and bridges.

HT Zir: high translucent zirconia for normal coping and bridges.

Sintering temperature: 1450°C-1500°C×2h

P/N

Specification

L×W×H (mm)

U20S

20-14-15

20×14×15

U20LS

20-19-15

20×19×15

U40S

40-14-15

40×14×15

U40LS

40-19-15

40×19×15

U55S

55-19-15.5

55×19×15.5

U65S

65-25-22

65×25×22

U65LS

65-40-22

65×40×22

U85S

85-40-22

85×40×22

P/N

Upcera Zr-Blank

Requirements for ISO 13356:1997

Chemical compositions:
ZrO2+HfO2+Y2O3
Y2O3
Al2O3
Other oxide

99.6wt%
5.2wt%
<0.5wt%
<0.2wt%

>99.0wt%
4.5 to 5.4 wt%
<0.5wt%
<0.5wt%

Bending strength

1200MPa

≥500MPa

Sintering density

6.06g/cm3

≥6.0 g/cm3

Vicker’s hardness

12.8GPa

Average grain size

0.4µm

≤0.6µm

Chemical solubility

10µg/cm2

100µg/cm2(ISO6872)

Radioactivity

0.015Bq/g

0.2 Bq/g(ISO6872)

Tests performed

Standard requirements

Test results

Complied with standard

Biological properties

Cytotoxicity test

Cytotoxicity should be grade 0

The grade of the cytotoxicity is 0, the tested sample has no cytotoxicity

Complied

Short term systemic toxicity test –oral route

The sample should be no toxicity

During the experimental period, no significant differences were found between the test group and the control group. This indicated that the tested sample has no systemic toxicity

Complied

Sensitization test (Delayed-type hypersensitivity test

The sample should have no sensitization

The scales of reactions of 10 animals were “0”, less than “1”. This indicated that the tested sample has no sensitization

Complied

Intracutaneous reactivity test

No intracutaneous reactivity

The primary irritation index of the tested product by sodium chloride extraction is “0”, by cotton seed oil extraction is 0.17, no irritation

Complied