Planmeca Promax 3D s User Manual page 75

Patient support table
Positioning
controls
Frankfort plane
5°
Frankfort plane light
User's Manual (2D)
TEMPOROMANDIBULAR JOINT (TMJ) EXPOSURE
The positioning lights for the midsagittal plane, Frankfort
plane and layer position will come on. Note that they will
automatically switch off after two minutes. If the lights go
out before you have positioned the patient, switch them
on by touching the thumb wheel on the underside of the
patient support table or by pressing any of the positioning
controls (button or joystick).
Thumb wheel
Position the patient's head so that the midsagittal plane
coincides with the midsagittal plane light beam.
Midsagittal
plane light
Position the patient's head so that the Frankfort plane is
tilted down five degrees. To do this support the back of
the patient's head with your hand and, using the Frankfort
plane light as a reference line, adjust the position of the
patient's head by raising or lowering the unit with the
height adjusting buttons. Make sure the patient's back
and neck are straight.
The Frankfort plane light, which is located on the side of
the column, can be moved up or down. This is done by
rotating the thumb wheel below the light slot.
Planmeca ProMax & Planmeca ProMax 3D s / 3D 71