The film is placed into the tip of the film holder and it is inserted into your mouth. The ring on the end allows the assistant to line up the X-ray machine perfectly so that a good film is produced.
PA Film Holder
From Tammy Davenport, former About.com Guide
Updated: July 17, 2007
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
This is the film holder for a PA or periapical X-ray.
Photo © Tammy Davenport
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