Villa Rotograph EVO, Руководство по обслуживанию

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SERVICE MANUAL
Troubleshooting
Rotograph EVO (Rev. 1) 8-68
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The image shows undulated teeth rows
As can be seen on Figure 8-8, the upper teeth are magnified and
unfocussed, with the shadow of the hard palate positioned over the
superior apex. The temporo-mandibular joints are exposed outward,
with lines divergent upward. In some cases, the condile vertex might
not appear on the image.
Figure 8-8
Possible cause:
Patient’s head tilted upward.
A Frankfurt plane too tilted upward produces different anomalies
that may also appear contemporaneously. A chin support plane too
high during the patient positioning or when extending the spine may
generate this mistake. In this condition, the rear side of the patient’s
head may also interfere with rotating arm of the panoramic
equipment.