Researchers combined data from 34 different cross-sectional studies to look at dental patients undergoing panoramic imaging. The goal was to see how often these dental X-rays accidentally showed calcified plaque in the carotid arteries, which are blood vessels in the neck that supply blood to the brain.
The analysis found that approximately 7% of the dental images showed suspected calcified carotid artery atheromas. The range across studies was between 5% and 9%. This means that in a group of patients getting routine dental X-rays, a small number might have visible signs of arterial plaque simply because the X-ray captured it, not because the test was meant to find it.
There were no reported safety concerns or adverse events because the X-rays themselves are standard dental procedures. The main reason to be careful is that seeing plaque on a dental image does not confirm a diagnosis. Dentists should recognize these potential findings when interpreting images. If suspicious calcifications are seen, appropriate referral for medical evaluation may support early assessment of patients with possible vascular risk factors. Readers should understand that panoramic radiography is not a screening modality for carotid artery disease.
