We are all exposed to natural radiation in our environment. The key is to control and limit our exposure when and where possible. During a dental examination x-rays may be required to to see areas of your teeth and mouth that are not visible during a visual exam.
By using digital X-rays we are able to use 80-90% less radiation compared to traditional dental X-rays.* Also since the images are digital it eliminates the need for harsh developing chemicals that are then disposed of in the environment. Even though digital X-rays are considered safe we still take the necessary precautions to protect and limit a patients exposure by only taking what is necessary and using lead aprons to shield the body.
*Data take from American Dental Association