DENTSPLY Extra Star, Instructions For Use Manual, Page: 11 / 24

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7 Pressing
Pressing is done in accordance with the processing instructions of the particular press ceramic manufacturer.
8 Devesting
After pressing, let the ring cool in the open air at room temperature. Stand the cooled ring on its end on
the plunger. Place a plunger next to it and lay the tip of a pencil over the edge slightly. Rotate the ring,
engaging the pencil lead to the side of the ring, scoring a line all around. Use a cut-off disk at the pencil
line, and cut off plunger from ring. Also, cut the investment off of the plunger.
Sandblast the ring with 4 bar pressure until the units become visible, then drop the pressure to about
2 bars . Use only 50 micron glass bead grit ( 50 µm ).