Ivoclar Vivadent IPS Empress Esthetic - Manual (Page 46)

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– These firing parameters represent standard values applicable to the ceramic furnaces from Ivoclar Vivadent. The
temperatures indicated also apply to furnaces of older generations, e.g. P20, P90, P95, P80, P100, P200. If one of
these furnaces is used, however, the temperatures may deviate by ± 10 °C/18 °F, depending on the age and type of the
heating muffle.
– If a non-Ivoclar Vivadent furnace is used, temperature corrections may be necessary.
– Regional differences in the power supply or the operation of several electronic devices by means of the same circuit
may render adjustments of the firing and press temperatures necessary.
Notes on pressing IPS Empress Esthetic
– Make sure to preheat AlOx plungers.
– IPS Empress Esthetic ingots have to be preheated.
– Place the ingots and AlOx plungers in the investment ring and position it quickly (in less than 1 min.) in the furnace.
– Do not use an IPS e.max AlOx Plunger Separator. The press temperature of the IPS Empress Esthetic ingots of 1075 °C/
1967 °F is too high for the separator to be effective.
– The press parameters specified in these Instructions for Use apply to the Ivoclar Vivadent furnaces EP 500, EP 600 and
EP 600 Combi (tolerance range ± 10 °C).
Press parameters
Notes on firing IPS Empress Esthetic
– Always use the honey-comb firing tray to fire the restoration.
– Place the restorations on the metal pins using a small amount of IPS Object Fix and position them on the honey-comb
firing tray .
– As an alternative, the restorations can be supported with a firing pillow. Due to their lower position in the firing
chamber, the restorations are exposed to less heat. Therefore, in order to achieve the desired gloss, the holding time
must be extended to up to 2 minutes.
– The firing temperatures must be observed at all times. Increasing the firing temperature will result in severe vitrification
between the framework and the veneering ceramic, which may lead to crack formation later on.
– Reducing the firing temperature will result in an underfired ceramic, which is very brittle and thus susceptible to
delamination.
– The parameters specified in these Instructions for Use are coordinated with the Ivoclar Vivadent ceramic furnaces
(tolerance range ± 10 °C).
Firing parameters
EP 600/EP 600 Combi
Small and large investment ring
B
700°C
1292°F
t
➚
60°C
108°F
T
1075°C
1967°F
H
20’
V 1
500°C
932°F
V 2
1075°C
1967°F
A
250 µm
EP 500
Small and large investment ring
B
700°C
1292°F
t
➚
60°C
108°F
T
1075°C
1967°F
H
20’
V
1
500°C
932°F
V
2
1075°C
1967°F
Pressure
5 bar