Dinka youth from a cattle camp sing and beat their sticks together in time to.the music. One rite of passage, performed around age ten to both girls and boys, is the removal of the .four to six front, lower teeth (this page, top). The Dinka say that a lower lip pushed outward by .teeth is unattractive. Therefore, the teeth are removed by using a spear to loosen the roots and .tear them from the gums.