x-ray

People who received frequent dental x-rays in the past have an increased risk of developing the most commonly diagnosed primary brain tumor in the US. But don’t panic–today’s dental patients are exposed to lower doses of radiation than in the past.

When researchers studied almost 1,500 brain tumor patients who were diagnosed with the disease between the ages of 20 and 79 and compared them with a control group, they found that patients with brain tumors were more than twice as likely as controls to report having ever had a bitewing exam, which uses an x-ray film held in place by a tab between the teeth.
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