YOSHIDA XP73 - Page 69

Directions for Use
67
Operation Manual
Aligning the Frankfurt horizontal beam
Move the sliding mechanism up or
down so that the Frankfurt horizontal
beam may be positioned parallel to the
patient’s Frankfurt plane.
* Warning
• Do not apply heavy load or shock on to the equipment, e.g. suspending from the chin
rest or handle. Failure to follow this instruction may cause damage to the equipment.
* Caution
• Be sure to press the correct switches, e.g. the Up or Down switch, for positioning,
otherwise, the patient may be injured.
Suppl. : The positioning beam automatically turns off in 60 seconds from the activation.
If the positioning beam has turned off before positioning has been successfully
nished,presstheBeamswitchtoactivatethebeam.
: Improper lateral positioning may affect the images as described below.
1. The patient's face inclined downward
Problems
• Blurred root apexes of mandibular teeth.
• Patient's hyoid bone overlapped on the
mandibular front teeth.
Possible causes
• The patient's face inclined downward.
• The patient's forehead inclined anteriorly.
Corrective measure
• Align the reference facial plane to the
horizontal reference line (horizontal line).
Frankfurt horizontal
beam