Ivoclar Vivadent SR Nexco Paste - Manual (Page 62)

62
frEQUEntLy aSKEd QUEStIonS
Is it possible to repair SR Adoro ® with SR Nexco Paste?
Basically yes. However, the shades of the materials are not
coordinated with each other.
Are the SR Nexco Paste materials radiopaque?
No, the SR Nexco Paste materials feature only a low radiopacity.
Is it possible to use SR Modelling Liquid as bonding agent?
No. SR Modelling Liquid must only be used for the wetting of
instruments. The material has an unfavourable effect on the bond
and might cause the restoration to fail if used excessively.
Is it possible to use SR Modelling Liquid as glaze?
No. It is intended for use during modelling and must not be used as
glaze.
Is it possible to use SR Modelling Liquid to dilute the
consistency?
No. The strength of the material would then no longer be
warranted and the material would be internally inhomogeneous.
As a result, the restoration would fail.
How must SR Link be stored?
Store SR Link in the refrigerator (2–8 °C / 36–46 °F).
On which framework materials can SR Link be used?
– On alloys with a gold, palladium and platinum content of up
to 90%
– On alloys that contain up to 50% copper and/or silver
– On base metal alloys
– On titanium and titanium alloys
Is it possible to use SR Link on high-gold and copper-free bio
alloys and electroplated frameworks?
Due to the high precious metal content (Au, Pt, Pd, Ag) of bio alloys
and the fine gold content (99.9%) of electroplated frameworks,
SR Link cannot be used. Generally, the bond achieved on alloys
containing copper is superior to the one on copper-free alloys.
What needs to be given particular attention during the sand-
blasting procedure (conditioning)?
Use Al
2
O
3
with a grain size of 80–100 μm. The jet pressure depends
on the alloy used.
Is it possible to mix SR Nexco Pastes (high and low viscosity)
with each other?
High- and low-viscosity pastes must not be mixed with each other
as this would cause bubble formation and due to the different
strength values. SR Nexco must not be mixed or processed with
other veneering materials.
Up to what thickness is it possible to layer SR Nexco Paste?
Do not apply layers thicker than 2 mm in the incisal and occlusal
areas.
Is it possible to apply SR Nexco Stains to the surface?
SR Nexco Stains must always be covered with layering materials
such as Incisal or Transpa materials, the reason being that they are
not wear-resistant and they would promote the accumulation of
plaque.
Is it necessary to use Connector and Bonding Liquids for
subsequent adjustments of SR Nexco veneers?
Roughening and sandblasting is sufficient to apply subsequent
supplements to completed SR Nexco restorations.
Which appliances may be used to polymerize SR Nexco?
SR Nexco Paste can be polymerized in a Lumamat 100 or Targis
Power Upgrade and in all conventional polymerization appliances
which have been tested by Ivoclar Vivadent and which are listed in
the polymerization table.
What happens if the indicated curing depths are not
observed?
If the indicated curing depths are not observed, the material cannot
thoroughly cure, which may result in chipping.