A sensor is placed in the mouth, and a computer generates an image. This takes approximately 30 seconds as opposed to the general 4-6 minute wait time for images taken on dental film. The digital x-ray is viewed on the computer in the room and is a full screen image making it easier to see. Digital x-rays provide us with invaluable information about your oral and dental health and they are eco-friendly as they do not require chemicals to develop them like the old film x-rays.