Metal fillings ‘leak mercury after scan’
Metal dental fillings leak mercury if they are exposed to a new powerful type of medical scan, scientists have found.
They studied the effect of ultra-high-strength MRI – the latest in scanning technology being introduced to several research hospitals in the UK.
The study, in the journal Radiology, shows 20 minutes' exposure is enough to release the toxin from extracted teeth filled with silver-coloured amalgam.
The team say more studies are needed to tell what real-life risk it might pose.
These cutting-edge scans are not yet widely used but are helping with medical research.
read more: https://www.bbc.com/news/health-44618217