Acquiring a Frontal AP or PA Image
5–6
ACQUIRING CEPHALOMETRIC IMAGES
Preparing and Positioning the Patient
To prepare and position the patient, follow these steps:
1. Ask the patient to remove all metal objects.
2. Ask the patient to wear a lead apron. Ensure that the apron lays flat across the
patient's shoulders.
3. Press and hold the height adjustment buttons to raise the cephalostat head.
4. Open and position the head clamps parallel to the cephalometric sensor. Ask the
patient to stand up straight in front of the cephalometric unit in the following
positions:
•
For a frontal AP, facing the generator
•
For a frontal PA, facing the cephalometric sensor
5. Press and hold the height adjustment buttons to level the ear cones to the patient's
auditory canals.
6. Insert gently one cone in the auditory canal of the patient. Turn gently the button to
close the arms. Insert gently the second cone in the auditory canal of the patient.
7. On the control panel, click
the patient with the Frankfort laser beam for the frontal AP only.
Figure 5–1
Frontal AP
to turn on the Frankfort laser positioning beam. Align
Figure 5–2
Frontal PA