Patient Positioning - Planmeca ProX User Manual

10 PREMOLAR AND CANINE EXPOSURE

10.2 Patient positioning

10.2.1 Positioning the sensor
Paralleling technique (recommended)
Long axis of the tooth
Bisecting angle technique (optional)
Sensor
20 Planmeca ProX
Sensor
Long axis of the tooth
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.
Ask the patient to sit down. Place a protective lead apron
over the patient's chest.
The sensor is placed to a sensor holder which is used to
align the sensor parallel to the long axis of the tooth.
Use a long cone for the paralleling technique.
The patient holds the sensor in place with his finger. The
X-ray beam is directed perpendicularly towards an
imaginary line which bisects the angle between the
sensor plane and the long axis of the tooth.
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