Strato X User Manual - Image Works

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USER'S MANUAL General instructions for use • Part of the image is enlarged while the other one is reduced The schema described on Figure 43 the film obtained; it is possible to observe that one part of the radiography is blurred and enlarged, while the other one is reduced and seems to be on focus; the two condiles are at the same height on the film. Figure 43 Possible cause: This effect can be due to two different causes. In the first one, the median-sagittal plane is not aligned with the relevant centring light beam, which falls at the centre of the chin support. In the second case instead, the centre of the mediansagittal plane matched the centre of the chin support, but the patient’s head is rotated. In both cases, one side is closer to the film plane than the other, thus resulting in a different magnification of the two sides; the part more distant from the film will be more magnified while the part closer to the film plane will result smaller. This error in positioning the patient will result in a radiography as shown in the next drawing: the rightmost area of the image shows a bigger magnification that can be noticed either on the teeth and on the ascending rami of the TMJ. Remedy: Check the positioning of the median-sagittal plane by using the relevant centring light beam. Check also the position of the middle sagittal beam; lighted, it must fall down on the center of the chin rest and also on the center of the byte. (Rev. 1) 127 STRATO X (120V)
USER'S MANUAL General instructions for use • The image shows TMJ at different height This fact is described in Figure 44. Figure 44 Possible cause: The mid sagittal plane is not vertical. This can be a patient’s problem, but if the defect is always present, check the laser beam. Remedy: Verify that the laser beam is vertical; this check can be performed very quicly using the laser beam and verifying that falls on the center of the chin support; remove the chin support itself and check that the beam falls on the center of the holes used to fix the chin itself. If not, a possible cause can be due to a non perfect horizontally of the chin arm. STRATO X (120V) 128 (Rev. 1)
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Strato X User Manual - Image Works

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