Ivoclar Vivadent IPS e.max ZirPress - Manual (Page 4)

4
e.max
®
ZirPress
Product Information
IP
S
Material
IPS e.max ZirPress is a fluor-
apatite glass-ceramic ingot
which is pressed onto
zirconium oxide. Since the
fluorapatite crystals are
present in various sizes, the interplay of translucency, opalescence,
and brightness can be controlled in a targeted fashion and thus
results in optimum masking of the less translucent zirconium oxide
frameworks.
In the press-over technique, the advantages of the PRESS technology
(accuracy of fit) are optimally combined with those of the CAD/CAM
technology (processing of zirconium oxide). IPS e.max ZirPress is
suitable to press over IPS e.max ZirCAD single-tooth and multi-unit
bridge frameworks as well as ZrO
2
abutments. With minimum
technical effort and in a short time, the tried-and-tested PRESS
technology is used to press on the IPS e.max ZirPress ingots.
Frameworks pressed over with IPS e.max ZirPress demonstrate firing-
stable ceramic shoulders with excellent accuracy of fit and may
subsequently be efficiently characterized or veneered using
IPS e.max Ceram. In this way, esthetic and highly functional
zirconium oxide-support restorations are fabricated in accordance
with the customer’s needs and in an economical fashion.
With the use of IPS e.max ZirPress Gingiva, the press-over technique
can be used to fabricate exact, homogeneous gingival areas
particularly for larger restorations.
Uses
Indications
– Pressing over IPS e.max ZirCAD single-tooth frameworks
– Pressing over multi-unit IPS e.max ZirCAD bridge frameworks
– Pressing over IPS e.max ZirCAD inlay-retained bridge frameworks
– Pressing over implant superstructures made of IPS e.max ZirCAD
(single-tooth and bridge frameworks)
– Pressing over Straumann ® Anatomic IPS e.max ® Abutments
– Pressing over frameworks, implant abutments and implant super-
structures made of sintered zirconium oxide and/or HIP zirconium
oxide with a CTE range of 10.5–11.0 x 10 -6 K -1 (100–500 °C/
212–932 °F).
– Veneers
Contraindications
– Pressing over zirconium oxide frameworks with a CTE outside the
stipulated range
– Pressing over non-sintered zirconium oxide frameworks
– Very deep sub-gingival preparations
– Patients with substantially reduced residual dentition
– Bruxism
– Bridges with more than one extension unit
– Any other use not listed in the indications
Important processing restrictions
Failure to observe the following restrictions may compromise the
results achieved with IPS e.max ZirPress:
– Failure to observe the necessary IPS e.max ZirCAD minimum
connector and framework thicknesses
– IPS e.max ZirPress ingots must not be pressed on the zirconium
oxide framework without prior application of IPS e.max Ceram
ZirLiner
– Pressing the IPS e.max ZirPress ingots without zirconium oxide
frameworks (except for veneers)
– Layering with a veneering ceramic other than IPS e.max Ceram
– Failure to observe the necessary minimum thicknesses for pressed
ceramics
– Exceeding the maximum thicknesses for pressed ceramics
– Pressing over metal frameworks
– Pressing over zirconium oxide frameworks for which the manu-
facturer’s instructions regarding minimum framework and
connector thicknesses have not been observed
Side effects
If the patient is known to be allergic to any of the components
of IPS e.max ZirPress, the material must not be used to fabricate
restorations.
CTE (100-400°C) [10 -6 /K] 9.8
CTE (100-500°C) [10 -6 /K] 9.9
Flexural strength (biaxial) [MPa]* 110
Vickers hardness [MPa] 5400
Chem. solubility [µg/cm 2 ]* 30
Press temperature [°C/°F] 900–910/1652–1670
*according to ISO 6872