These days we can never be too careful with our bodies and what we expose ourselves to. More often than not I have patients who will decline dental X-rays because of the myth of how much radiation they actually produce. It is not my practice, nor any member of my staff to unnecessarily expose patients to radiation. The recommended amount of X-rays truly depends on your age, oral and physical health, and your risk for disease, thus the reason a health history update is asked for at each visit to the office. For instance, children require dental X-rays more often than adults as their mouths continue to grow and develop and their mouths are more susceptible to tooth decay. Even though adult's mouths stop developing at a certain point that does not mean that the mouth stops changing. X-rays are important for adults as well to monitor new decay and any wear and tear that comes with (gasp) age, eating habits, previous dental work or trauma.
Dental X-Rays are safe, but they do require very low levels of radiation exposure. There are certain types of images in very specific instances that do emit a much high dose of radiation, but Cone Beam images are rare and if your dentist or doctor suggests one, it would be for a very good reason. The lead jackets provided protects your vital organs and your thyroid from the low levels of radiation delivered though routine dental X-rays. The background radiation of a set of dental X-rays is 1 day. Background radiation is natural radiation that we are all exposed to on a daily basis and can be found in soil, rocks, buildings, the sun, air and water. The radiation you are exposed to on a 4 hour passenger airline flight is the same as 1 set of dental X-rays. For this and more information about dental x-rays please visit http://www.mouthhealthy.org/en/az-topics/x/x-rays