This type of "toothbrush" costs 2 to 5 cents. In French they are called "cure-dent" (dent being French for tooth). They are made from many trees, but people usually select their favorites based on flavor—tamarin or eucalyptus for example—or degree of softness and pliablility. It is important to suck and wet the end, and chew it a little so it becomes flexible enough to brush teeth without fear of scratching the enamel. Some people use them once and throw them away, others prefer to use the same stick over and over. Hygiene is important to Senegalese and this traditional method of brushing teeth is effective. One habit that can undo the positive effects of the cure-dent is chewing cola nuts.