Digital dental radiology is more than the mere storage of patient X-rays; it is a time saver. More importantly, it reduces a patient's, dentist's and assistant's exposure to X-rays while also helping to keep the environment safer. Digital imaging takes about one-fourth to one-sixth the exposure time that a traditional dental X-ray machine does; therefore, the patient is subjected to less radiation during the exposure of a radiograph. X-rays are a common procedure during a patient's initial visit and they are usually updated each year thereafter. In addition to pinpointing cavities, X-rays uncover cysts, abscesses, tumors, periodontal disease, and can be used to identify malformed or impacted teeth.