Ivoclar Vivadent IPS e.max ZirPress - Manual (Page 31)

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Blast the restoration with Type 1 Al
2
O
3
at 1 bar (15 psi) pressure. Before staining and characterization, thoroughly clean the restoration under running water or
with a steam jet.
In the staining technique, the fully anatomical, pressed restorations are completed by
the application of stains (IPS e.max Ceramic Shades, Essence) and glazing materials.
In this way, the use of translucent IPS e.max ZirPress blocks permit the fabrication of very
esthetic restorations on only slightly or non-discoloured preparations with minimum effort.
Observe the following procedure for finishing IPS e.max ZirPress restorations:
– Even though adjustment by grinding of pressed IPS e.max ZirPress restorations is possible, it should be kept to a
minimum.
– Wet the area to be ground and use a fine diamond disk to cut the sprues.
– Overheating of the ceramic must be avoided. Low speed and light pressure is recommended.
– Smooth out the attachment points of the sprues.
– Do not ”post-separate” the framework connectors with separating disks. This may result in undesired predetermined
breaking points, which will subsequently compromise the stability of the all-ceramic restoration.
– Check the occlusion and articulation and grind in the appropriate adjustments, if necessary.
– Design surface textures.
– To clean the restoration, briefly blast with Al
2
O
3
at 1 bar (15 psi) pressure and clean with the steam jet.
– Some blasting devices may require different pressure settings to accomplish this procedure.
Smooth out the attachment points of the sprue using low speed and light pressure and
design a natural surface structure.
Use a fine separating disk and continuous water cooling to cut the sprues.
e.max
®
ZirPress
Staining Technique
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