Planmeca Proline EC Panoramic User Manual page 28

TEMPOROMANDIBULAR JOINT EXPOSURE (P10)
Frankfort plane light
5°
Frankfort plane
24 Planmeca Proline EC Panoramic X-ray
mm
Midsagittal plane light
Press either of the height adjusting keys to adjust the
height of the vertical carriage until the opening in the
chin support is approximately level with the patient's
mouth.
Ask the patient to step forward, grasp the patient han-
dles 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, their teeth together.
Press the temple support key to close the temple sup-
ports.
Press either of the focal trough positioning key to
switch the three patient positioning lights on so that the
patient can be positioned.
Stand behind the patient and check that the patient's
shoulders are level and the neck muscles relaxed.
Make sure the patient's back is straight.
Position the patient's head so that the midsagittal
plane coincides with the midsagittal plane light beam.
Make sure that the patient is looking straight ahead as
the light may appear to be correctly positioned but the
patient's head could be turned slightly to one side.
Position the patient's head so that the Frankfort plane
is tilted down 5°. 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 vertical
carriage with the height adjusting keys. Make sure the
patient's back is straight.
User's manual