Ivoclar Vivadent IPS e.max CAD Chairside v.1 - Handbuch (Seite 68)

16
Combination Firing
(Crystallization/Glaze)
As a general rule, IPS e.max CAD is fired on the IPS e.max CAD Crystallization Tray
and the corresponding IPS e.max CAD Crystallization Pins. This firing tray
stores heat and ensures slow cooling of the glass-ceramic.
The firing cycles are conducted in a Programat CS or any other ceramic furnace from
Ivoclar Vivadent.
The Programat CS is easy to operate and especially suitable for glaze and crystalliza-
tion firings. Also because of the integrated vacuum function, this furnace is ideally
suitable for processing IPS e.max CAD blocks.
Preparing for Cementation
Conditioning of the ceramic surface to prepare for cementation is decisive for
generating a sound bond between the cementation material and the all-ceramic
restoration. Generally, glass-ceramics are etched with IPS Ceramic Etching Gel
(5% hydrofluoric acid). IPS e.max CAD is etched for 20 seconds.
Etching produces retentive bonding surfaces, which increases the bond
between luting composite and the all-ceramic restoration.
IPS Ceramic Etching Gel is for extraoral use only and must not be
applied in the oral cavity.
Subsequent silanization of the bonding surface with Monobond S generates a
sound bond between the etched all-ceramic material and the luting composite.
The bonding silane thus plays an important role for the overall bonding strength
between the IPS e.max CAD restoration and the tooth structure.
Total Etch
Total Etch is used to prepare the tooth for the adhesive cementation using Variolink.
Total Etch is a gel used to etch the enamel and condition the dentin in situations
where all-ceramic restorations are to be cemented adhesively.