Ivoclar Vivadent IPS Empress CAD Labside User Manual

Page 24

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Completed IPS Empress CAD restoration, stained and glazed in one step.

IPS Empress CAD with IPS Empress Universal

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Stain and Glaze firing

403°C

6'

100°C

790°C

1–2'

450°C

789°C

757°F

6'

180°F

1454°F

1–2'

842°F

1453°F

Firing parameters for the Stain and Glaze firing

(note the temperature control)

Optional

Subsequent adjustment

After completion, additional adjustment (e.g. contact points) may become necessary. For that purpose,

IPS Empress Add-On 770 °C/1418 °F is available.

Processing:

– Before the adjustment, the restoration must be free from dirt and grease. For that purpose, thoroughly clean the

restoration using the steam jet.

– Mix IPS Empress Add-On 770 °C / 1418 °F to a workable consistency. Make sure that the add-on material and liquid are

evenly mixed so that an optimum firing result can be achieved.

– Apply the mixed add-on material on the cleaned, desired areas using a brush and slightly blot them with an absorbent

cloth.

– Position the adjusted restoration on the firing tray and fire in the ceramic furnace.

– After firing, manually polish the supplemented areas to a high gloss.

IPS Empress CAD with

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IPS Empress Add-On 770°C/1418°F

Corrective firing

403°C

4'

60°C

770°C

2'

450°C

769°C

757°F

4'

108°F

1418°F

2'

842°F

1417°F

Firing parameters for the corrective firing

Place the objects on the honey-comb firing tray and start

the firing program

After glazing and staining, the glaze and stain firing is conducted in a compatible ceramic furnace (e.g. P500).

The following points should be observed when placing the restoration in the furnace and setting the firing parameters:

– Support inlays, onlays, and partial crowns with a firing pillow and place them on a honey-comb firing tray.

– Place veneers as well as anterior and posterior crowns on metal pins and position them on the honey-comb firing tray.

– As an alternative to the firing pillow and to better secure the restoration

on the metal pins (particularly with veneers), a small amount of

IPS Object Fix 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.

Therefore, in order to achieve a true-to-nature gloss, 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. Keep firing pillows used for all-ceramic materials

separated from those for metal-ceramics to avoid cross-contamination.

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