Ancient dental calculus (IMAGE) Eurac Research Caption Dental calculus on the mandibular teeth of the early medieval individual Credit Eurac Research/Alice Paladin Usage Restrictions Photographic material is available to the press on the condition that sources are clearly indicated and images are exclusively published in reference to specific press release or report content. Images may only be used for non-commercial purposes and may not be resold or passed on to third parties. License Original 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.