Prostyle Intra X-ray Unit 13
POSITIONING THE PATIENT
User's manual
7
POSITIONING THE PATIENT
Ask the patient to sit down. Place a protective lead ap-
ron over the patient’s chest.
7.1
Positioning the film/sensor
NOTE The standard cone is suitable for the bisecting angle
technique, and the long cone is used for the parallel-
ing technique.
Bisecting angle technique
The patient holds the film or sensor in place with his
finger. The x-ray beam is directed perpendicularly to-
wards an imaginary line which bisects the angle bet-
ween the film plane and the long axis of the tooth.
Paralleling technique
The film or sensor is placed to a film holder which is
used to align the film parallel to the long axis of the
tooth.
Film or
Long axis
of the tooth
sensor
Film or
Long axis
of the tooth
sensor
