priti®multidisc ZrO2 Multi Translucent
Productinformatie "priti®multidisc ZrO2 Multi Translucent"
The combination of 3Y-TZP (Translucent with very high strength) and 5Y-TZP (High Translucent with very high translucency) gives a highly aesthetical effect and reliable strength for an unrestricted range of indications. In addition to a smooth transition between the layers within the blank or restoration, this product also has good masking qualities and high stability throughout the blank.
Materiaaleigenschappen:
Zirconium dioxide Type II, Class 5 according to DIN EN ISO 6872
Bending strength: typical mean value > 1,100 MPa
Translucency gradient from < 40% to > 49%
Thin wall thicknesses of 0.4 mm in the anterior region and 0.6 mm in the posterior region for single crowns
Precise margins and edges due to highly compressed material
Veneering is possible with any ceramic material compatible with the CTE 10,5 ± 0,5 ·10-6·K-1 of ZrO₂
Cross-batch shade fidelity
Homogeneous staining
Consistently reproducible shades
Biocompatible
Materiaalsamenstelling:
Zirconium dioxide (ZrO2/HfO2): 89.89 - 94.65 %
Yttrium oxide (Y2O3): 4.65 - 10.11 %
Aluminum oxide (Al2O3): < 0.2 %
Other oxides: < 0.7 %
Important instructions for correct use under the following points:
Milling:
Reduce feed rates during rough machining: The quality of milling depends on several factors including the machine, machining strategy, zirconium dioxide, etc. To ensure that you can achieve optimum milling results from the start with high translucence blanks, we recommend using a lower speed than with opaque materials during rough machining.
Coated milling tools:
These offer the benefit of low wear with longer tool life.
| Job | Rough machining Occlusal/cavity | Rough machining Residual material |
|---|---|---|
| Tool diameter | 2.5 mm | 1.0 mm |
| Parameter: | ↓ | ↓ |
| Spindle speed | 20,000-22,000 rpm | 20,000-22,000 rpm |
| Feed rate | 1,200-1,500 mm/min | 1,000-1,300 mm/min |
| Infeed rate | 1,000 mm/min | 700 mm/min |
| Allowance | 0.15 mm | 0.15 mm |
| Tool path distance | 1.00 mm | 0.20 mm |
| Step down/step over | 1.00 mm | 0.50 mm |
Recommendation for standard sintering:
Heating and cooling rate 10°C/min
Hold time 120 minutes at 1,450°C
Total sintering time approx. 7 hours
Recommendation on rapid sintering:
(for bridges with up to 3 pontics)
Heating rate 10°C/min
Hold time 30 minutes at 1,500°C
Cooling rate 40°C/min
Total sintering time approx. 4 hours
Sintering together with other materials could cause unwanted changes in color and translucence. This applies particularly to materials processed using dye liquids. Sintering beads must also be replaced to avoid dye liquid residues.It is particularly important to clean sintering furnaces that are contaminated by dye liquids before sintering a pre-shaded material for the first time. This prevents unpleasant surprises and allows optimum photo-optical results for the zirconium dioxide.
Fixing: Restorations can be cemented conventionally with a zinc phosphate or glass ionomer cement or with self-adhesive and fully-adhesive fixing material.
Veneering: Any ceramic veneers recommended for zirconium dioxide ceramics may be used.
Verpakkingsinhoud:
Per stuk
Dit medische hulpmiddel mag uitsluitend worden verkocht voor verwerking door daarvoor opgeleide vakmensen, freeslaboratoria of -centra die zijn geautoriseerd voor de verwerking van gebitsprothesen.