Ivoclar Vivadent IPS e.max CAD Abutment Solutions - Manual (Page 6)

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CTE (100–500°C) [10 -6 /K] 10.5 ± 0.5
Flexural strength (biaxial) [MPa] ≥ 360 according to ISO 6872
Fracture toughness [MPa m 0.5 ] ≥ 2.0 according to ISO 6872
Chem. solubility [µg/cm 2 ] ≤ 50 according to ISO 6872
Material
IPS e.max CAD
IPS e.max CAD is a lithium disilicate glass-ceramic block for the CAD/
CAM technology. It is fabricated using an innovative process which
provides an impressive homogeneity of the material. The block can
be processed very easily in a CAD/CAM unit in this crystalline inter-
mediate stage. The typical and striking colour of IPS e.max CAD
ranges from whitish to blue and bluish-grey. This shade is a result of
the composition and the microstructure of the glass-ceramic. The
strength of the material in this processable intermediate phase is
≥ 130 MPa. After the IPS e.max CAD blocks are milled, the restora-
tion is crystallized in an Ivoclar Vivadent ceramic furnace (e.g.
Programat
® P500). Unlike with some other CAD/CAM ceramics, the
easy-to-conduct crystallization process neither causes any major
shrinkage, nor are any complicated infiltration processes required.
The crystallization process leads to a change in the microstructure in
the IPS e.max CAD material, during which lithium disilicate crystals
grow. The densification of 0.2% is accounted for in the CAD soft-
ware and taken into account upon milling. The final physical proper-
ties, such as the strength of ≥ 360 MPa and the corresponding opti-
cal properties, are achieved through the transformation of the micro-
structure.
Ti base
Ti bases are used for the fabrication of IPS e.max CAD Abutment Solutions. The suita-
ble Ti bases are selected in accordance with the CAD/CAM system used. Please
observe the instructions for use and processing of the manufacturer of the Ti bases
used.
More information about the authorized CAD/CAM systems is available on the Internet
from www.ivoclarvivadent.com.