15. Appendices
178 vatech A9 (Model name: PHT-30CSS) User Manual
15.4 Acquiring Images for Pediatric Dental Patients
15.4.1 Age Group: Classification Table
Ages are classified loosely into the following correspondence between FDA definition
and one used in this manual.
Age Group FDA’s standard VATECH’s Standard
Infant 1 month to 2 years N/A
Child 2 ~ 12 years of age Child
Adolescent 12 ~16 years of age
Adult
Other 16 ~ 21 years of age
Adult > 21 years of age
15.4.2 Positioning the Pediatric Dental Patients
1. Use a laser light beam guide to locate the midsagittal plane. The direct patient
focuses on mirroring reflection. Affix decal to mirror to aid the patient in
maintaining the correct position throughout the exposure.
2. Move the Chinrest into a position that is slightly higher than the patient’s chin
height before requesting that the weak place chin onto the rest. Direct the patient
to assume a position that resembles the erect stance of a soldier.
3. Direct the patient to stick out the chest while dropping the chin down. While
holding the unit handles for stability, direct the patient to take a half step toward
the vertical column of the X-ray device into a position that feels as if he/she is
slightly leaning backward.
4. Direct the patient to close lips around the Bite Block during the exposure.
5. Direct the patient to swallow and note the flat position of the tongue. Request that
the patient sucks in the cheeks, pushing the tongue into the correct flat position
against the palate, and maintain this position throughout the exposure.
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