If every time you go to your dentist you’re being asked to have an x-ray, you might just want to stop and say “No”. Most patients don’t need a dental x-ray as often as dentists want to do them and, let’s face it, if you have enough of them they can cause cancer.
Dentists give x-rays often as they make money on them. So, while you might think it’s for your own good and to check on the health of your teeth, that is not always the case.
So the next time your dentist tells you that you need an x-ray, ask him what it’s for and do you really need it. More info: Dental x ray