Ivoclar Vivadent SR Ivocron - Manual (Page 3)

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Finishing, polishing
Finish the restoration according to the standard procedure
for PMMA materials, i.e. finishing with burs and rubber
polishers, pre-polishing with goat's hair brushes and
pumice, and polishing to a high gloss with cotton wool
buffers and polishing medium (e.g. Ivoclar Vivadent
Universal Polishing Paste).
Securing of ground denture teeth on cast
frameworks
Setup, fabrication of the silicone key
Grind the denture tooth to fit on the working model, hold in
place with wax, and check occlusion. Fabricate a silicone
key.
Isolation
Boil out the wax and block out undercuts with pink wax.
Then, immerse the model in water for 5 minutes. Apply two
layers of Separating Fluid. Wait until the surface is no longer
shiny before applying the second layer.
Wetting
Roughen the basal areas of the teeth, replace in the silicone
key, and wet with monomer.
Metal bond
Use aluminium oxide to blast the metal parts that will be
covered.
Tip
We recommend using SR Link for the chemical bond to
metal. Blast framework with aluminium oxide and remove
grinding dust. Wet it with SR Link and allow it to dry for
3 minutes.
Opaquer
Mix the desired Opaquer with the SR Ivocron Opaquer
Liquid and allow a dough time of approx. 2–3 minutes.
After that, mask the metal part. The SR Ivocron Opaquer is
self-curing. Polymerization is completed after approx.
15 minutes.
Tip
Before proceeding, use a suitable instrument to check
whether the material has cured completely.
Dentin and Incisal
Mix the desired SR Ivocron Dentin or Incisal powder in
a rubber cup, cover it, and let it sit for approx. 3–4 minutes.
Tip
Mixing Dentin and Incisal materials in a 1:1 ratio results in
improved shade adaption in interdental areas.
Pour the Ivocron mixture in the silicone key, while it is still
flowable. Allow to stand briefly, and immediately place it in
the pressure apparatus.
Polymerization
Polymerization is carried out in the pressure apparatus
(e.g. Ivomat) for 15 minutes at 40–50 °C (104–122 °F) and
2-6 bar pressure (29–85 psi).
Finishing, polishing
Finish the restoration according to the standard procedure
for PMMA materials, i.e. finishing with burs and rubber
polishers, pre-polishing with goat's hair brushes and
pumice, and polishing to a high gloss with cotton wool
buffers and polishing medium (e.g. Ivoclar Vivadent
Universal Polishing Paste).