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Take care in positioning the sprue on inlay and onlay restorations. Ensure the sprue is not attached to an upper surface unless it is
an occlusal only inlay. If the sprue appears to be missing, then it is on an interior surface. Try moving the sprue to a new position.
Do not mil a partial sprue if another position with full sprue is available. Your orientation affects the position of the sprue.
Restoration Positioning
When using an IPS Empress CAD Multiblock, the Restoration Positioning arrows are enabled. Use the
arrows to move the restoration up or down within the block to achieve the desired shading. Be aware that
if the restoration is near the top or bottom of the block, extra milling time will be required to remove the
extra material.
Mill Simulation
The Simulation Mode portrays the milled restoration. It takes about 10 seconds to generate and is recommended before milling to
check the internal fit.
1
On the Mill tab, click Sim (located under Send to Mill).
2
Confirm the desired setting:
• Standard is recommended for full coverage restorations.
• Detailed is recommended for partial coverage restorations.
3
Click OK.
The system takes a few seconds to create the simulation.
IPS e.max ZirCAD Simulation and Milling
There are a few differences to be aware of on the Mill screen when simulating
IPS e.max ZirCAD.
A reminder appears as you enter the screen - Perform a Sim to ensure inner surfaces are
cleared out. For bridges, ensure connectors are above minimum area requirements for
strength. Click OK to continue.
Detailed milling is the only option when using this material.
Do NOT activate This case will be milled on a PlanMill 40 (not "S" model) checkbox when
you do a simulation. This is for older mill models.
See "Milling Zirconia" on page 9 and "Zirconia Mill Maintenance" on page 17 for more
information on milling zirconia.
Planmeca PlanMill 40 S User Manual
No sprue visible - it is on the interior
surface. Change the position of the
sprue.
Partial sprue - Change position to
allow a full sprue when possible.
Importing for Milling
22
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