Planmeca Intra User Manual page 29

Bisecting angle technique (optional)
Film or
sensor
Positioning the cone
Scale for the cone angle
Maxillary anterior
User's Manual
The patient holds the film or sensor in place with his
finger. The X-ray beam is directed perpendicularly
towards an imaginary line which bisects the angle
between the film plane and the long axis of the tooth.
Long axis
of the tooth
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 5.2 "Selecting the cone" on page 8.
Select the cone angle from the table below.
Incisors
Incisors
Position the cone according to the figures below.
INCISOR EXPOSURE
TEETH
Maxilla
Mandible
Mandibular anterior
Planmeca Intra X-ray Unit 25
ANGLE OF
INCLINATION
+55°
-20°