Ivoclar Vivadent Zenostar - Manual (Page 27)

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Stain and Characterization firing
The most important staining and characterization steps are described below. Please observe the manufacturer’s directions regarding
the Stains. Before the Stain and Characterization firing, the restoration must be free of dirt and grease. Clean the object with a
steam cleaner to remove any dirt and grease residue. Any contamination of the object after cleaning should be avoided.
The following steps must be observed:
To improve the wetting behaviour, the surface of the restoration may be wetted with a small quantity of Stain liquid.
More intensive shades are achieved by repeated staining and firing, rather than by applying thicker layers.
To imitate the incisal area and achieve translucency in the incisal third or the occlusal third, so-called Incisal Stains may be used.
The cusps and fissures may be customized with Effect shades such as brown or orange.
Conduct the Stain and Glaze firing using the stipulated firing parameters.
Coat the surfaces with a small amount of Stain liquid to
enhance the wettability of the surface. Apply Incisal Stains to imitate the appearance of the incisal
edge.
The cusps and fissures may be customized by using Effect
shades. Fire the stained crown on a honey-combed tray using the
stipulated firing parameters.
Firing parameters for the Stain and Characterization firing
The firing parameters for the IPS e.max Ceram Stains and the Zenostar Art Module materials can be found in the section "Firing
parameters" on the pages 55 snd 56.