UV Light-Assisted Tooth Bleaching (IMAGE) Royal Society of Chemistry Caption This is a person receiving a UV light-assisted tooth bleaching treatment. Credit Ellen Bruzell, Nordic Institute of Dental Materials Usage Restrictions with credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.