Ivoclar Vivadent IPS e.max CAD Chairside v.1 - Handbuch (Seite 99)

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Can other firing trays, e.g. honey-combed
trays, be used for the crystallization of
IPS e.max CAD?
No other firing trays should be
used. The IPS e.max CAD
Crystallization Tray contained in
the assortment stores the heat
necessary for slow and above all
tension-free cooling of the glass-
ceramic. Other firing trays, e.g.
honey-combed tray, cannot store the heat and
therefore cool down too quickly.
Can furnaces other than the ones from
Ivoclar Vivadent be used to crystallize
IPS e.max CAD restorations?
The crystallization of IPS e.max CAD is specially
coordinated with the Ivoclar Vivadent ceramic
furnaces (e.g. Programat CS). If you would like to
use other ceramic furnaces, please consult Ivoclar
Vivadent about their compatibility with IPS e.max
CAD. It is important to note that not every
ceramic furnace can be used for crystallization.
Ceramic furnaces which, for example, do not
feature a controlled (long-term) cooling mode or
vacuum cannot be used for this purpose.
Can IPS e.max CAD Crystall./Add-On also be
fired with the parameters Speed
Crystallization/Glaze Spray?
No. Since the IPS e.max CAD Crystall./Add-On
Liquid contains organic components that only
slowly evaporate during pre-drying, the parame-
ters Speed Crystallization/Glaze Spray cannot be
used due to the short closing time.
Can the IPS e.max CAD Crystall./Glaze Paste
also be fired with the parameters Speed
Crystallization/Glaze Spray?
No. Since the IPS e.max CAD Crystall./Glaze Paste
contains organic components that only slowly
evaporate during pre-drying, the parameters
Speed Crystallization/Glaze Spray cannot be used
due to the short closing time.
Can IPS Empress Universal Shades, Stains and
Glaze be used for IPS e.max CAD?
IPS Empress Universal Shades, Stains and Glaze
were specially developed for and coordinated with
the IPS Empress System and are therefore not
suitable for IPS e.max products.
What must be considered after the firing of
IPS e.max CAD?
In order to prevent tensions within the ceramic,
remove the restoration from the furnace only
after the firing cycles have been completed (wait
for the acoustic signal of the ceramic furnace.
Allow the objects to cool to room temperature in
a place protected from draft and do not touch
them with metal tongs during that time. Do not
blast or quench the objects.
Can IPS e.max CAD restorations be blasted
with Al
2
O
3
or glass polishing beads (on the
cavity side) as a preparation for the seating?
IPS e.max CAD restorations must not be blasted
with Al
2
O
3
or glass polishing beads before
placement, as this damages the ceramic surface
and significantly reduces the strength.
How must the internal (bonding) surface
of the IPS e.max CAD restorations be
conditioned before cementation?
The internal (bonding) surfaces of IPS e.max CAD
restorations must always be etched with 5%
hydrofluoric acid etching gel (IPS Ceramic Etching
Gel) for 20 seconds, irrespective of whether they
are cemented with adhesive, self-adhesive or
conventional methods. The resulting retentive
pattern enables an enhanced bond both with
adhesives and self-adhesives, as well as con-
ventional bonding agents. After etching, the
glass-ceramics are silanized using Monobond-S
when adhesive and self-adhesive cementation is
used. With conventional cementation, silanizing is
not necessary.