dental Zirconia Ceramics
1.CAD/CAM open system blocks
2.cell toxicity should be grade 0
3.no sensitization,no irritation
Dental Zirconia Ceramics
CAD/CAM open system blocks
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 | D×H (mm) |
U10W | D98-10 | 98×10 |
U14W | D98-14 | 98×14 |
U16W | D98-16 | 98×16 |
U18W | D98-18 | 98×18 |
U20W | D98-20 | 98×20 |
U22W | D98-22 | 98×22 |
U25W | D98-25 | 98×25 |
Physical and Chemical Properties
P/N | Upcera Zr-Blank | Requirements for ISO 13356:1997 |
Chemical compositions: | 99.6wt% | >99.0wt% |
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) |
Test Report
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 |
The test report above is supplied by State Food & Drug Administration Medical Devices Quality Supervision and Testing Centre of Peking University.