Ivoclar Vivadent PS Empress CAD Chairside - Manual (Page 23)

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Fabrication of IPS Empress
®
CAD Restorations
– Inlays / Onlays – stained / glazed
The glazing material is evenly applied on the entire outer surfaces of the restoration.
Step 2 – Application of Shade / Stains:
– Extrude IPS Empress Universal Shade or Stains from the syringe and mix thoroughly.
– Thin the material to the desired consistency using IPS Empress Universal Glaze and Stain Liquid.
– Apply the mixed Shade material directly into the unfired glazing material layer.
– Intensify the corresponding dentin shade in the cervical and occlusal areas using IPS Empress Universal Shade.
– To imitate the incisal area and translucency in the incisal third, use IPS Empress Universal Shade Incisal.
– Apply individualized effects and characterizations on cusps and in fissures using the Stains materials. Only apply the
Stains once staining with the Shade materials has been completed.
– Apply the Stains thinly and in a controlled manner on the unfired glazing material layer using a brush.
Mixed Shades are applied directly into the unfired glazing material layer. The corresponding
dentin shade is intensified in the cervical and occlusal areas and IPS Empress Universal Shade
Incisal is used to imitate the incisal areas. Individualized effects and characterizations are applied on cusps and in fissures using the
Stains materials.
After glazing and staining, the glaze and stain firing is conducted in a compatible ceramic furnace (e.g. Programat CS2).
The following points should be observed when placing the restoration in the furnace and setting the firing parameters:
– Support inlays and onlays with a firing pillow and place them on the
honey-comb firing tray.
– As an alternative to the firing pillow, a small amount of IPS Object Fix
Putty / Flow may also be used.
– Restorations supported with a firing pillow on the honey-comb tray are
exposed to less heat due to their lower position in the firing chamber. In
order to achieve a true-to-nature gloss nonetheless, it is recommended
to extend the holding time from 1 minute to 2 minutes.
– Make sure that the firing pillow is regularly replaced in order to prevent
contamination.
The objects are placed on the honey-comb firing tray and the firing
program is started.