Which Sensor?

by Larry Emmott on October 12, 2007

in Radiography

The following table (adapted from a Schick ad) shows the steps required to view an image with a direct corded sensor as opposed to an indirect phosphor sensor.

             Direct                                            Indirect

Insert sensor into barrier (once)

Erase each Plate
Insert into barrier (each plate)
Take to Scanner area
Clean up hands and plates
Open barriers
Insert plates in scanner
Arrange images in proper order in software.
Retrieve used plates
Return to patient

The fact is there is a considerable difference in ease of use and time required to acquire an image. With a direct system the dentist can be viewing the image in less than 10 seconds. With an indirect system the time from exposure to viewing is virtually the same as film.

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