Dental radiology involves imaging the mouth and gums with advanced equipment. Traditionally, and still to this day, x-rays are used. This is done by projecting x-rays through the teeth and allowing them to strike a photosensitive plate or a digital sensor. The varying densities of the teeth create a grayscale image of the mouth and the internal structures of the teeth themselves.Where normal x-ray film must actually be developed much like regular negatives, digital images usually appear instantaneously on a screen. Digital images of the teeth, however, have long suffered from a lack of resolution and detail. This is why so many standard x-ray film machines are still in use today.Dental radiology is progressing, however, just as the rest of radiology is. There are a variety of new machines