Ivoclar Vivadent IPS e.max CAD-on - Manual (Page 48)

Is it possible to dilute the IPS e.max CAD
Crystall./Connect fusion glass-ceramic with a
liquid?
No. The fusion glass-ceramic, which is predosed
and ready for use in the Single Dose,
must not be diluted. The addition of
liquid results in a defective fusion. The
consistency of the fusion glass ceramic is
adjusted in such a way that optimum flow
properties with vibration (Ivomix) and a high
stability without vibration are achieved.
Is it possible to mix and use (non-used)
leftover IPS e.max CAD Crystall./Connect
fusion glass-ceramic again?
No. The very specific powder/liquid ratio in the
predosed mixture ensures an optimum fusion. If
leftover materials are mixed, the mixture is
changed and no longer meets the specifications.
Is it possible to use other vibrators than
Ivomix?
The vibration (freqency, amplitude) of Ivomix has
been optimally adjusted to the flow propeties
of the fusion glass-ceramic IPS e.max CAD
Crystall./Connect. Other vibrators are
not suitable.
How is the IPS e.max CAD-on restoration
cleaned after the fusion process?
The IPS e.max CAD Crystall./Connect fusion glass-
ceramic is allowed to dry for a short time.
Subsequently, remove excess with the IPS Spatula
and fine residue with a short-haired brush. Make
sure that no IPS e.max CAD Crystall./Connect
material is removed from the fusion gap.
How can the correct position of the IPS e.max
ZirCAD framework and the IPS e.max CAD
veneering structure be checked after fusing
and prior to firing?
The fused IPS e.max CAD-on restoration can care-
fully be checked on the model in the articulator. If
the fusion is not correct, the restoration must not
be vibrated again. In such a case, the fusion proc-
ess has to be repeated with fresh material.
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Is it possible to characterize the fused, "blue"
IPS e.max CAD-on restoration prior to the
Fusion/Crystallization firing?
If required, only the occlusal third can be charac-
terized with IPS e.max CAD Crystall./Shades and
Stains. Important: Do not apply IPS e.max
CAD Crystall./Shades, Stains or Glaze on or
near the fusion gap.
Is it possible to apply IPS e.max Ceram
layering materials or Shades, Essences and
Glaze to IPS e.max CAD-on restorations?
No. In the IPS e.max CAD-on technique, only
IPS e.max CAD Crystall./ Shades, Stains, Glaze and
Add-On may be used.
Is it necessary to use the auxiliary firing paste
IPS Object FIx Putty or Flow for the Fusion/
Crystallization firing?
IPS Object Fix Putty or Flow is not required for
IPS e.max CAD-on restorations, as the IPS e.max
ZirCAD framework provides sufficient support for
the IPS e.max CAD veneering structure. A small
amount of IPS Object Fix Putty or Flow material
can be used to facilitate the placement of the
restoration on the IPS e.max CAD Crystallization
Pins.
Which furnaces can be used for the Fusion/
Crystallization firing of IPS e.max CAD-on
restorations?
Only recommended furnaces which are
equipped with a pre-drying mode can be
used for the Fustion/Crystallization firing.
Please refer to the notes on ceramic
furnaces (see p. 36).
Why is the predrying function so important
for the Fusion/Crystallization firing in the IPS
e.max CAD-on technique?
The controlled predrying of the IPS e.max CAD-on
restoration allows the liquid contained in the
fusion glass-ceramic to escape through the very
thin gap between the IPS e.max ZirCAD frame-
work and the IPS e.max CAD veneering structure.
This controlled drying is a prerequisite for a homo-
geneous bond. If no controlled predrying is
employed, there is the risk that the IPS e.max CAD
veneering structure is lifted off the IPS e.max
ZirCAD framework, which renders the restoration
useless.