98*14mm Dental Zirconia Block
Zotion has many types of zirconia,including white zirconia block(HT:＞1200mpa Translucency :41%,ST:＞900mpa Translucency:43%),preshaded zirconia block(STC:＞900mpa Translucency:43%,HTC:＞1200mpa Translucency:41%),3D multilayer zirconia block(STM:800mpa-1100mpa Translucency:43%-49%,ATM:600mpa-900mpa Translucency:46%-55%),3D multilayer preshade zirconia block(TSTM:800mpa-1100mpa Translucency:43%-49%,TATM:600mpa-900mpa Translucency:46%-55%) Zotion dental zirconia block has high strength, good translucency and natural color.And Zotion zirconia has CE and ISO certificates ,it has been sold to more than 120 countries around the world .
- produkt introduktion
98×14mm dental zirconia block is a high-performance ceramic material used to make all-ceramic denture restorations, which is widely used in the dental field.
Specifications: The specifications of this product are cylindrical ceramic blocks with a diameter of 98mm and a thickness of 14mm, which are suitable for various CAD/CAM systems.
High strength: The bending strength can reach 600-1350MPa, which can withstand the chewing pressure in the mouth.
Excellent aesthetics: The transparency of zirconia is about 41-55%, which is close to the color and transparency of natural teeth, providing a natural and beautiful restoration effect.
Zirconia (ZrO₂): content Greater than or equal to 99%, as the main component.
Yttrium oxide (Y₂O₃): The content is 4.5% to 6.0%, which acts as a stabilizer to ensure the stable existence of tetragonal zirconium oxide at room temperature.
Hafnium oxide (HfO₂): The content is Less than or equal to 5%, which exists as a trace element.
Aluminum oxide (Al₂O₃): The content is Less than or equal to 0.5%, which can improve the mechanical properties of the material.
Other oxides: The content is Less than or equal to 0.5%, which is used to adjust the material properties.
| 41% | ＞1200Mpa | |||
| 43% | ＞900Mpa | |||
| 41% | ＞1200Mpa | A1.A2.A3 | ||
| 43% | ＞900Mpa | A1.A2.A3.A3.5 A4. B1.B2.B3.B4 C1.C2.C3.C4 D2.D3.D4 BL1.BL2.BL3 BL4 | ||
| 3D Multilayer preshaded zirconia block | Greater than or equal to Top-Bottom Greater than or equal to 49%- Greater than or equal to 43% | Top-Bottom Greater than or equal to 800Mpa- Greater than or equal to 1100Mpa | ||
| Top-Bottom Greater than or equal to 55%- Greater than or equal to 46% | Top-Bottom Greater than or equal to 600Mpa- Greater than or equal to 900Mpa | |||
| 3D multilayer preshade zirconia block(made of Tosoh zirconia powder) | Top-Bottom Greater than or equal to 43%- Greater than or equal to 49% | Top-Bottom Greater than or equal to 800Mpa- Greater than or equal to 1100Mpa | ||
| Top-Bottom Greater than or equal to 46%- Greater than or equal to 55% | Top-Bottom Greater than or equal to 600Mpa- Greater than or equal to 900Mpa |
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>3.15±0.05 g/cm³v |
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>6.0 g/cm³ |
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(10.3±0.5)x10-6 K-1 |
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Greater than or equal to 600-1350Mpa(different type are different) |
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41%-55% |
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<100 μg/cm2 |
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Cytotoxicity 0 level |
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<0.1 Bq/g |
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1480~1530 degree ,1520 degree is recommend |
Powder preparation: High-purity zirconium oxide powder is uniformly mixed with an appropriate amount of stabilizer (such as yttrium oxide) and other oxides to ensure the uniformity and stability of the material.
Molding: The powder is pressed into a regular-shaped blank by isostatic pressing or dry pressing. Isostatic pressing ensures the uniformity and density of the blank and improves the strength and durability of the restoration.
Pre-sintering: The blank is pre-sintered at 900-1100 degree to give it a certain strength for subsequent machining.
Machining: Use CAD/CAM technology to precisely cut the pre-sintered zirconia blank into the required shape of dental restorations.
Final sintering: The dyed restoration is finally sintered at 1450-1600 degree to achieve the required density and mechanical properties.
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