Zirconia
ZIRCONIA
Zirconia - Zirconium (ZrO2) Abutments
Zirconia abutments were introduced into dental implantology as an alternative to the metal abutments. Due to its biocompatibility, colour and its mechanical properties, Zirconia is a well suitable replacement for metal abutment. The bacterial adhesion, which is important in the maintaining of zirconium restorations without periodontal problems, was proven satisfactorily low. One main bene t is that no allergic reactions can be expected when the zirconia is used. In addition, there is almost no danger of corrosion which is often the problem with metal based abutment. It also boasts of its extraordinary strength & durability that could last for a very long period of time. Metal free abutments are also resistant to acids that may interact with the mouth. Edison Medical is dedicated to designing and producing top level Y-TZP Zirconia abutments that meet the highest requirements of precision, quality and innovation. Zirconia abutment are the ideal solution to rising demand for metal-free products.
Zirconia (ZrO2).
Zirconium dioxide is one of the most studied ceramic materials. Pure ZrO2 has a monoclinic crystal structure at room temperature and transitions to tetragonal and cubic at increasing temperatures. Several different oxides are added to zirconia to stabilize the tetragonal and/or cubic phases: magnesium oxide (MgO), yttrium oxide, (Y2O3), calcium oxide (CaO), and cerium(III) oxide (Ce2O3).
Data Sheet
| Material | Zr02, 94.5%, partly Y203 - stabilized | |
|---|---|---|
| Density | [g / sm3] | 6.08 |
| Hardness | [HV] | -1200 - 2000 |
| Bending strength | (4-point) [MPa] | 800 - 1000 / 350 - 450 |
| Elasticity module | [GPa] | approx. 2000 |
| Maximum usage temp. | C0 | 10000 |
| Expansion coefficient | [10-6 / K] | approx. 10.2 |
| Average static load | N. | 761 |
Advantages
- Biocompatible material & allergen-low
- ZrO2 enable perfect aesthetic & superior strength
- Natural translucency without metal
- Elasticity module and thermal expansion coefficient similar to steel.
- Allows epithelial cells attachments
- Advance solution for rehabilitation on implants for total edentulous.
- Excellent anti-friction properties
