Section (IMAGE) University of Bristol Caption Teeth of upper and lower jaws, X-ray section along the length of the jaws showing teeth in wear. Unerupted teeth at left are made from dentine (de) with an enamel (en) cap. Many teeth show the pulp cavity (pc) at the base. Tooth wear is so extreme that teeth are worn flat to the bone, and in many cases bone works against tooth in chomping. Credit Thitiwoot Sethapanichsakul Usage Restrictions Once with release 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.