After electroforming:
Remove the contact rods
• Unlock the device and remove the glass slide.
• Gently twist the metal rods to pull them out.
• If the electroformed copings have already been removed from the plaster, the electroformed
crowns are separated with a cutting wheel at the junction to the metal rod.
• Remove any leftover plaster residue in the ultrasound bath.
Removing primary crowns and telescopic copings
• Reduce the overlapping margin under a microscope, using a rubber polisher.
• Drill a screw into the plastic die.
• Hold the die on the screw with pliers and carefully tap the pliers to detach male and female parts
from each other.
Removing the conductive silver paint
• Use nitric acid to remove the conductive silver paint in a fume hood inside a plastic container.
Please carry personal protective equipment.
• If no nitric acid is available, the conductive silver paint coat must be removed by blasting with
alumina (50 µm and 1–2 bar).
• Please be aware that no blasting should be done with telescopic copings, because otherwise
the inner surface is roughened and there may no longer be friction.
• Nitric acid concentration: 20% to approximately 65%. The higher the concentration, the faster
the conductive silver varnish will be dissolved.
Please note:
Conductive silver paint residue may cause discoloration of the ceramic, telescopic copings and
gingiva and may lead to the crown margin being deformed.
Finish on the master model single die
• A rubber polisher is recommended for correcting margins.
• Do not use burs.
Surface conditioning
• Prepare electroformed crowns for veneering by blasting them with 110 µm of alumina and 1 bar of
pressure.
• The crown is then cleaned with the aid of a steam radiator.
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Bonder firing
• A gold bonder is not required for the DeguDent system.
• DeguDent Deckgold NF is very well suited if gold bonder is to be used.
The ceramic veneer
• Duceragold
®
Kiss, Duceram
®
Kiss and SYMBiOceram
veneers.
• Please follow the ceramic manufacturer's data and recommendations.
• In order to prevent deformations on an inlay or onlay to be veneered, a relief cut should be made
up to the opaquer during the first dentin firing.
• The ceramic's firing temperature should not exceed 950 °C.
• Veneered electroformed crowns should no longer be sandblasted.
10. Cleaning the anode
Please ensure that the anode basket, temperature sensor, reference electrode and heating system
are cleaned are each electroforming process. If this is not done, there is a risk of contamination in the
subsequent electroforming process.
Procedure:
• Carefully remove the anode after each electroforming process and clean it in a vessel for about
10 minutes with the anode cleaner in ultrasound bath provided. The anode is connected to the
device head using three small connectors. Slightly pulling downward will loosen the anode from
its socket. Immerse the anode in the anode cleaner, such that the mesh is completely covered.
• Thoroughly rinse off any residue of the anode cleaner from the anode under running water.
• Please note: The anode cleaner can soil clothing etc. Please wear rubber gloves and safety goggles.
• Wipe the glass heater with a damp cloth after each electroforming process.
• Also wipe the electrodes, the magnetic stir bar with a damp cloth after each electroforming
process.
• Rinse out the glasses and measuring cylinders after each process.
• Regularly evaporate the cathode slots.
• Do not allow the anode contacts to touch the anode cleaner.
• When using the "Automatic Plaster Release On/Off" function, the cathode rods and the reference
sensor must be removed from the plaster release.
Please ensure that your work is very neat. This has a positive effect on plating.
®
are all suitable for fabricating ceramic
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