Planmeca Promax 3D s User Manual page 80

TEMPOROMANDIBULAR JOINT (TMJ) EXPOSURE
13.2.1 Patient positioning
Patient support table
Positioning
controls
76 Planmeca ProMax & Planmeca ProMax 3D s / 3D
Move the C-arm to the patient entry position if it is not
already there. Refer to section 8.2.4 "Selecting patient
entry position" on page 29 for differences between the two
positions.
Prepare the patient for the exposure as described in
section 11.2 "Preparing patient" on page 61.
Press the temple support button to open the temple
supports if they are not already open.
Temple
support
Guide the patient to the unit so that they are facing the
button
chin support. Explain to the patient that you will take a
multi-angle exposure and that the C-arm will move
through three exposure cycles.
To adjust the height of the unit, press either of the height
adjusting buttons until the opening in the chin support is
approximately level with the patient's mouth.
Height adjusting
buttons
The X-ray unit moves slowly at first, then faster.
Ask the patient to step forward, grasp the patient handles,
stretch and straighten their back and neck, and press their
lips against the chin support. The patient's nose must rest
on top of the support and their mouth must be closed, and
their teeth must be together.
The positioning lights for the midsagittal plane, Frankfort
plane and layer position will come on. Note that they will
Thumb wheel
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).
User's Manual (2D)