The IPS e.max CAD-on technique allows users to fabricate high-strength and highly esthetic restorations from IPS e.max CAD (LS2) and IPS e.max ZirCAD (ZrO2) ceramics. Due to the CAD/CAM fabrication technique, tooth- or implant-supported posterior bridges (up to 4 units) can be fabricated. Two parts are required for the CAD-on technique: a zirconium oxide framework made of IPS e.max ZirCAD and a lithium disilicate veneering structure made of the new IPS e.max CAD HT B40 block. This block meets even the most exacting esthetic requirements and combines modern technology with user friendliness.
The two parts are designed using the intuitively operated Sirona inLab software V3.80 and milled in the Sirona inLab MC-XL unit. The IPS e.max ZirCAD framework is sintered in a time-saving procedure in a Programat S1 furnace. The simultaneous fabrication and the short process times allow productivity to be increased and the active working time to be reduced by up to 40 per cent. The homogeneous all-ceramic bond of the two separately milled parts is achieved during the crystallization of IPS e.max CAD by means of the innovative IPS e.max CAD Crystall./Connect fusion glass-ceramic.
Advantages
- High-strength, monolithic LS2 veneering structure
- High esthetics due to coordinated ceramic components
- Zirconium oxide-based posterior bridges can be fabricated in one day
- Innovative, homogeneous all-ceramic bond
- Excellent overall strength of the restoration
Indications
- Single-tooth crowns
- Splinted crowns
- 3- to 4-unit bridges
- Implant superstructures (single teeth, 3- to 4-unit bridges)
