Dentistry procedure (IMAGE) University of Washington Caption A new University of Washington dental tool prototype uses a low-power light system to monitor reactions with a florescent dye solution to find where teeth enamel is most at risk from the acidity of plaque. Credit University of Washington and IEEE Xplore/Creative Commons Usage Restrictions Credit must be given to the creator. License CC BY 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.