Digital radiography originally became available in the dental practice in the 1980s, and although the technical side of digital radiography is very different from conventional radiography, the reasons, justification and referral criteria for a digital x-ray are the same as those for a conventional x-ray.  There are many advantages  to digital x-ray, some of which are given here.

1. Less radiation − As a general rule, the exposure time needed for digital radiography systems is less than with traditional film.
2. Near Instant images − Both Phosphor Plates and Direct Digital Sensors produce an image in mere seconds.
3. Involving the patient − Digital radiography has the potential to encourage patients' acceptance of and adherence to a treatment plan when they are able to 'see the problem'.
4. Image enhancement and manipulation − The contrast and brightness of the the image can be adjusted, eliminating the need for another exposure. Furthermore, digital x-ray systems come with Imaging Software that can be used to enhance the image using different tools such as: caries diagnosis, color, 3D and other techniques: all of which will help dentists to diagnose problems − possibly at an earlier stage than would have been possible with film.
5. Information sharing − The image is an electronic file which allows the treating Dr. to e-mail, save on disk or print the image for easy information sharing.
6. No chemicals − Your staff will no longer need to deal with chemicals, processors, missing films or MSDS sheets, none of which are needed with digital radiography.
7. Reusable − Because the Phosphor Plates and Sensors detecting the x-rays are reusable, there is no need to buy film.
8. Time saving − Because the images are available almost instantly there is much time saved in processing.
9. Quick return on investment − Despite the apparently high investment made, the return can easily be realized in less than one year.

Learning curve − It is important to remember that digital x-rays are different than film.  It is vital that all staff members are trained in proper x-ray techniques and are familiar with the imaging software to take full advantage of the benefits of Digital X-Ray.