A Stronger Dental Material (IMAGE) American Chemical Society Caption Researchers are reporting progress toward a stronger material for dental cavities using ingredients from the human body. Arrow points to a filling made of "composite." Credit National Institute of Standards and Technology (NIST) Usage Restrictions None 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.