Toothpick Grooves on 4 Neanderthal Teeth (IMAGE) University of Kansas Caption Three views of the four articulated teeth making up KDP 20. a. occlusal view showing lingually placed mesial interproximal wear facet on P4 (arrow) and buccal wear on M3; b. lingual view showing a mesially placed interproximal wear facet on P4 (arrow), chips from lingual faces of all teeth and rotated, partially impacted M3; c. buccal view showing rotated buccal face of M3 (arrow) and hypercementosis on its root. Credit David Frayer, University of Kansas 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.