Radiation is Always a Concern!
In medicine, we have an acronym called ALARA, which stands for As Low As Reasonably Achievable. This means that your doctor believes this exam is necessary to properly treat you. With the advancements in technology, CAD-Ray utilizes a dental-specific 3D x-ray system that has much less radiation than medical-grade CT Scanners.
A full set of digital x-rays, generally taken once every 3 to 5 years by dentists, exposes you to 80 μSv (microsivert), which is the unit of radiation dosage.The range of radiation from our machine is 56 to 153 μSv or microsiverts. We are naturally exposed to about 3000 microsiverts from our environment in the US (2400 microsiverts worldwide) on a yearly basis. In essence, the radiation of our CBCT machine is equal to about 10 days of natural background radiation.
There are annual limits set by the National Council on Radiation Protection and Measurements recommendations which cite 1 millisivert (1000 μSv) of exposure for the public and 50 milliverts (50,000 μSv) for radiation workers. However, there is no annual limit for the radiation when one is using diagnostic radiology since the benefits far outweigh the risks.
The radiation dose from one Medical CT scan typically range from 2 millisieverts (comparable to the yearly background radiation from natural sources equal to 243 days of natural background radiation) – to close to 20 millisieverts. As you can see, the radiation dosage from our dental scanners is much less than medical CT machines.