The Tubercle of Carabelli in the Kish Dentition, Mesopotamia, 3000 B.C

¹ Zoller Dental Clinic, University of Chicago

1. The incidence of the tubercle of Carabelli in the Kish dentition, 3000 B.C., indicates an evolutionary development of the cusp in the morphology of human dentition.

2. The comparative data gathered from the American, European, and Mongoloid people reveals the fact that the Carabelli cusp is a trait inherent largely in the modern white people of European origin.

3. The absence or low incidence of the cusp in the Mongoloid groups indicates that genetic mechanisms are involved in its occurrence in the mentioned populations.