Getting a dental X-ray? A new recommendation says you don't need a lead apron

Those heavy lead aprons may be on their way out at the dentist office, depending on where you live.

The nation's largest dental association said Thursday it will no longer recommend the use of lead aprons and thyroid collars on patients who are getting dental X-rays.

There are two main reasons for the change. X-ray beams are now more focused, so there is less concern about radiation hitting other parts of the body. Also, the aprons and collars can sometimes block dentists from getting the images they need.

The best thing to lower radiation exposure is to make sure the patient needs the X-ray and to do it right the first time, said Dr. Purnima Kumar, who chairs the American Dental Association Council on Scientific Affairs, which released the recommendation.