The patient bites down on the film holder while the X-ray is taken. The film and holder is usually in your mouth less than 30 seconds.
Taking a PA
by Tammy Davenport
for About.comUpdated: July 17, 2007
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
This is a photo of a patient having a PA or periapical X-ray taken.
Photo © Tammy Davenport
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