Technical data
18
Note: 1. The orientation letter “a”, printed on the PSP, may be used for reference
as you would use the dot on an intraoral X-ray film. In addition, a
backwards “a” (i.e. “ ”), appearing in an image, is an indication that
the image has been flipped.
2. If using holders with alligator clips, it is advisable to file down the
points to avoid puncturing the Barrier Envelope. It is important to
take care not to puncture the Barrier Envelope or damage the PSP.
Take an X-ray Image
Put an image on the PSP by performing the following procedure.
1. Place the erased intraoral PSP in the sealed Barrier Envelope into the
patient's mouth exactly as you would use X-ray film. Make sure the opaque
side of the Barrier Envelope is facing the tubehead.
2. Take the exposure. The X-ray dose may typically be reduced by 80 - 85% of
that required for D-speed intraoral film (depending on X-ray system used;
the actual X-ray dose should be determined through experimentation).
3. Wearing gloves, remove the exposed PSP from the patient's mouth and
place to the side making sure the sensitive side of the barrier envelope is
facing away from any light source.
4. Repeat steps 1 through 3 as necessary to complete the patient's X-ray
series. When all necessary plates in the X-ray session have been exposed,
prepare each plate by performing the procedure below.
Preparing the Exposed Plate for Scanner Processing
1. Disinfect the Barrier Envelope (with plate still inside) and your gloves by
washing with disinfectant hand soap and water. Dry the Barrier Envelope
thoroughly.
2. Remove gloves and wash any powder from hands. Powder on a PSP will
degrade the image, and an accumulation of powder in the scanner will
lead to degradation of scanner performance.
a
INTRAORAL IMAGING PROCEDURES