YUCERA False Teeth Materials For Dental Lab CAD CAM System Dental Zirconia Block
Natural Color Transition
zirconia blocks are made of nanometer medical grade zirconia powder. The powder are firstly compacted by cold isostaticpressing with high compressive strength and then pre-sintered to a certain degree to offer good machinability.
ST zirconia blocks can be used to create crowns, bridges, inlays and veneers of fixed partial denture with different translucency levels and colors.
Super Translucent Zirconia Block
1. Super translucency with total light transmission rate >50% (comparable to lithium disilicate)
2. Average strength over 1100 Mpa (can be used in a variety of all-ceramic restorations such as onlay/inlay, crown, bridge and so on)
3. Highly accurate Vita standard coloring liquid to meet the requirements of high standard dental restoration
4. Excellent machinability owing to unique shaping technique
5. Top quality medical-grade nanometer zirconia powder
6. Ok for Anterior + Posterior teeth
ST Color Zirconia Block
* Pre-shaded technics
* Uniform color
* Without post dyeing posses
* Suitable for full contour crown, bridge and anterior
Indications
Crown, Inlay, Onlay, 2-5 unit Bridges, Anterior
Physical Characteristics
| Physical Characteristics |
| Sintered density 6.07±0.01g/cm³ |
| Bending Strength 1200 MPa |
| Transmittance 43% |
| Hardness 1200HV |
| Sintering temperature 1480~1550℃/recommend 1530℃ |
HT/ST Sintering Curve (1-5)
| HT/ST Sintering Curve (1-5) |
| Sintering step | Start Temperature(℃) | End Temperature(℃) | Time(Min) | Rate(℃/Min) |
| Step 1 | 20 | 300 | 30 | 9.3 |
| Step 2 | 300 | 1200 | 150 | 6 |
| Step 3 | 1200 | 1530 | 110 | 3 |
| Step 4 | 1530 | 1530 | 120 | 0 |
| Step 5 | 1530 | 800 | 100 | -7.3 |
| Step 6 | 800 | natural cooling 20 | 120 | -6.5 |
HT/ST Sintering Curve (10 units)
| HT/ST Sintering Curve (10 units) |
| Sintering step | Start Temperature(℃) | End Temperature(℃) | Time(Min) | Rate(℃/Min) |
| Step 1 | 20 | 300 | 30 | 9.3 |
| Step 2 | 300 | 1200 | 190 | 4.7 |
| Step 3 | 1200 | 1530 | 150 | 2.2 |
| Step 4 | 1530 | 1530 | 120 | 0 |
| Step 5 | 1530 | 800 | 120 | -6 |
| Step 6 | 800 | natural cooling 20 | 120 | -6.5
|
