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Parents have to start cleaning their baby’s teeth when their baby is six month old. Since the milk tooth is fragile, they are easily become decayed. But it is not an easy task to take care of baby teeth, so the babies still threatened by decayed tooth problem. We add some fluorine to the baby teether, so the baby teeth can be cleaned while the babies are using the teether. This saves the time of parents.
CHANG,JIA-YU LIN,LIANG-JUN ZHAN,ZI-LIN HUANG,CHANG-RUEI