Planmeca PlanMill 40 S User Manual
Importing for Milling
23
Evaluate the Simulation
Is there overmilling? Overmilling is caused by areas of the preparation that are smaller than the tools. The tools must “overmill” and
remove extra material so that there is no hangup. Is the overmilling drastic enough to cause a loss in retention?
1
Click the
Gingival
arrow to view the interior aspect of the proposal.
The simulation will show swirl marks in areas where the milling tools have to overcompensate for small prep areas.
Sharp areas of the preparation that are
smaller than the milling tools can result
in overmilling.
Swirl marks indicate overmilling.
The rest of the proposal’s interior is
relatively smooth.
2
Click
Slice Plane
once or twice to get the desired slice direction.
3
Drag the slice to the approximate area of the overmilling. Rotate and zoom to evaluate.
A maximum zoom of 1 mm is recommended.
When overmilling has occurred, you can see the shape of the tool in the slices. Look for straight walled indentations as shown
below.
Is there too much overmilling? Has the material become too thin? You can try another simulation with the Detailed mode (smaller
bur). If there is a problem, corrections must be made to the design or spacer in your design software. Reimport after corrections
have been made.
Evaluating the Connectors on Bridges
It is important to evaluate the connections on the bridge.
The sprue will be on the mesial or distal side of the bridge.
1
Click
Sim.
When the Simulation is run, the connections between the teeth are displayed.