Usually, I take x-rays once a year with my dentist. Is this harmful? Am I at risk of getting cancer?
Sometimes, I have to see a dental specialist, such as an periodontist, and the assistant to the periodontist would proceed to take "full-mouth x-rays", so that instead of taking an x-ray from each side of the jaw, they take about 15-18 x-rays from many different angles of my jaw. I feel it's dangerous / gratuitous -- and that those excessive amount of x-rays is just used to train the assistant, and that it's unnecessary for the periodontist to make an evaluation of my teeth and gums.
Are "full-mouth x-rays" harmful?