OCCLUSAL EXPOSURE
28 Planmeca ProX
User’s Manual
When the parameter value on the kV or mA display is not
flashing, the exposure time value can be changed with the
parameter adjusting keys.
NOTE After adjusting the kV or mA value the unit will return
automatically to the time adjustment mode after 5
seconds time.
12.2 Patient positioning
Ask the patient to sit down. Place a protective lead apron
over the patient’s chest.
In the intraoral occlusal exposures the film or sensor is
positioned between patient’s upper and lower teeth.
12.2.1 Positioning the cone
The angle of the cone is indicated on the scale located on
the vertical joint of the tube head.
The optional long cone can be attached into the short
cone. Refer to chapter 7.2 “Selecting the cone” on page 9.
Select the cone angle from the table below.
Position the cone according to the figures below.
TEETH
ANGLE OF
INCLINATION
Occlusal
exposure
Maxilla +75°
Occlusal
exposure
Mandible -60°
Film
Film
Maxillary occlusal
Mandibular occlusal
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