Biology of Humans 6th Edition by Judith Goodenough,Betty McGuire

Exercise 13

Dental x-ray films are taken using small doses of radiation and are used to detect tooth decay, injuries to the roots of teeth, and problems with the bones supporting the teeth. A dental professional covers the patient with a lead apron that runs from the neck to the abdomen and then leaves the room to take the x-ray film. Why are such precautions necessary