EN
OPERATOR'S MANUAL
35
5.4.1. LASER TRACES
The X-ray device features three light traces which help positioning the patient:
1) Upper Horizontal Laser Trace
used in all PAN, DENT, SIN, TMJ,
CBCT examinations
2) Sagittal Vertical Laser Trace
used in all the examinations
3) Vertical Focusing Laser Trace
used in PAN, DENT, SIN, TMJ
examinations
Upper horizontal trace (1)
it is generated by a laser projector placed on the X-ray generator side; it can be moved upward or downward to be
adapted to different dimensions, using the suitable lever beside the light opening. This trace is used in PAN and
DENT examinations to ensure that the patient’s Frankfurt plane is horizontal and, more generally, to ensure correct
positioning.
The Frankfurt plane is represented by an imaginary line running from the upper edge of the auditory meatus to the
lower edge of the orbit.
Sagittal vertical trace (2)
it ensures the symmetry of the patient head with respect to the sagittal midline. While observing this trace, it is
necessary to make sure that the patient looks straight ahead to prevent him/her from tilting the head to one side or
from rotating it slightly.
Vertical focusing trace (3)
it indicates the exact position of the focal point; to obtain a good focusing in PAN and DENT examinations, make this
trace coincide with the cusp of the upper canine. This trace is used also to point at the exact position of the condylar
head for TMJ examinations and between the first and second upper molar for SIN examinations.
Each pressure of the CONFIRMATION button will move all the device mobile parts. Make sure NOT to
press the button during the patient positioning and that the device can be safely moved.
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