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Toothbrushes must be replaced regularly because bacteria grow up in the brush. But now people are
too busy to remember to do it, doing harm to their health.The design of this toothbrush is based on the
idea to remind people of replacing new ones.
National Yunlin University of Science and Technology
Douliou Yunlin, Taiwan
National Yunlin University of Science and Technology
Douliou Yunlin, Taiwan