Natural Head Position (NHP)
During (CB)CT scanning, the patient’s head is not always orientated in a standard and optimal way. If needed, adjust the head position in IPS CaseDesigner to closely match the natural head position.
Evaluate the patient's head position on the hard and the soft tissue.
Tips
The natural head position can be edited at any time.
Click Layout 
and select which viewers (frontal, right lateral, axial) to display.
Change the soft tissue transparency by clicking Transparency and moving the transparency slider. Transparency is by default set to 50%.
The 3D patient model can be orientated in the NHP by translating and rotating the model in the 3D viewers. Make sure to select the appropriate mode. When the Translation button is highlighted, the wizard is in translation mode. Click Rotation to switch to rotation mode. The Rotation button is highlighted.
Tip
Use the Tab key on the keyboard to switch between rotation and translation.
Reference lines in the frontal or right lateral viewers assist you in setting the model in the correct position. The Frontal viewer shows the facial midline and the Frankfurt Horizontal. The Frankfurt Horizontal continues in the Right lateral viewer, which also shows the true vertical. The Axial viewer shows the facial midline and the true vertical.
Rotation
Activate Rotation mode. The Rotation button is highlighted. Click the scene and drag to rotate the model.
| Where | Action | |
Yaw
|
In the frontal or the right lateral viewer | Move the mouse left and right on the model. |
| In the axial viewer | Move the mouse left and right outside the model. | |
Roll
|
In the frontal viewer | Move the mouse left and right outside the model. |
| In the axial viewer | Move the mouse left and right on the model. | |
Pitch
|
In the right lateral viewer | Move the mouse up and down outside the model. |
Translation
Activate Translation mode. The Translation button is highlighted. Click the patient model and drag it to the correct position.
| Where | Action | |
| Move sideways | In the frontal or axial viewer | Move the mouse left and right. |
| Move forward and back |
In the right lateral viewer |
Move the mouse left and right. |
|
In the axial viewer |
Move the mouse up and down |
|
| Move up and down | In the frontal or right lateral viewer | Move the mouse up and down. |
Reset Position
Click Reset position 
to restore all viewers to the original position as it was retrieved from the scanned data.