52
OPERATOR'S MANUAL
EN
5.4.6. MAXILLARY SINUSES EXAMINATION
1) Remove the chin rest and the bite, and insert the under-nose support.
2)
Adjust the unit height, in order to facilitate the patient’s access, using the keys
to move the column
upward or downward until the under-nose support reaches the height of the nose base. The telescopic column
will move slowly at first, then it will speed up.
3) Guide the patient toward the unit so that he/she faces
the under-nose support and can grab the wide
handles. Operator and patient will face one another.
The patient will rest the nose base on the under-nose
support, as in the figure.
4) Check the symmetry of the patient’s head using the
sagittal vertical trace as a guide; check the correct
positioning of the Frankfurt plane by overlapping the
upper horizontal light trace, as shown in the figure.
5) Once the correct orientation has been found, lock the
craniostat as explained in paragraph 5.4.2:
A-
* Push the front support forward until it rests on the
patient’s forehead. The forehead’s pressure on the
support will automatically stabilise it.
B-
Close the arms until they touch the patient’s
cranium.
C-
Rotate the top levers downward until they are
laterally locked.
*not essential
6) Make sure that the examination required is selected
correctly.
Use the keys
to position the vertical
focusing light trace between the first and the second
upper premolar of the patient.
* the vertical laser reference is useful to optimise the
patient’s alignment,
but it is not strictly necessary
7) Before pressing the X-ray emission button, ask the patient to close his/her eyes and to remain still.
