Phosphor Imaging Plates AT - Type #4 (AT-4)3D Dental's Phosphor Imaging Plates are a digital imaging system that reads the x ray on a phosphor imaging plate and sends the image to your computer. These plates are as thin as a business card and are wireless. For a more economical and easy to use option, 3D Dental's Imaging Plates can be used over 500 times. These plates feature rich images of diagnostic quality that are available in seconds and operate in normal room lighting eliminating the