Strato X User Manual - Image Works
Strato X User Manual - Image Works
Strato X User Manual - Image Works
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USER'S MANUAL<br />
General instructions for use<br />
• Part of the image is enlarged while the other one is reduced<br />
The schema described on Figure 43 the film obtained; it is possible to<br />
observe that one part of the radiography is blurred and enlarged,<br />
while the other one is reduced and seems to be on focus; the two<br />
condiles are at the same height on the film.<br />
Figure 43<br />
Possible cause:<br />
This effect can be due to two different causes.<br />
In the first one, the median-sagittal plane is not<br />
aligned with the relevant centring light beam, which<br />
falls at the centre of the chin support.<br />
In the second case instead, the centre of the mediansagittal<br />
plane matched the centre of the chin support,<br />
but the patient’s head is rotated.<br />
In both cases, one side is closer to the film plane than the other, thus<br />
resulting in a different magnification of the two sides; the part more<br />
distant from the film will be more magnified while the part closer to<br />
the film plane will result smaller. This error in positioning the patient<br />
will result in a radiography as shown in the next drawing: the rightmost<br />
area of the image shows a bigger magnification that can be<br />
noticed either on the teeth and on the ascending rami of the TMJ.<br />
Remedy:<br />
Check the positioning of the median-sagittal plane by using the<br />
relevant centring light beam.<br />
Check also the position of the middle sagittal beam; lighted, it must<br />
fall down on the center of the chin rest and also on the center of the<br />
byte.<br />
(Rev. 1)<br />
127<br />
STRATO X (120V)