Digital X-rays expose patients to 90 percent less radiation in comparison to conventional X-ray machines. While both are considered relatively safe, digital radiography X-rays are the perfect option for patients who are concerned with the amount of radiation to which they or their loved ones are being exposed. The radiation exposure from standard digital dental X-rays is very minimal. One bitewing X-ray (the standard X-ray to check for cavities between the back teeth) is approximately 0.001 mSv of radiation. In fact, thanks to our environment here on Earth, we're all being exposed to around 0.1 to 0.2 microsieverts of background radiation per hour, and that's totally fine (to put that into perspective it takes 1,000 mSv (millisievert) to make 1 microsieverts)