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In daily life, most people use an excessive amount of toothpaste. Researches indicate that too much use of toothpaste will endanger our health.
The bristles designed with different colors and the base
of the bristles labeled with numbers help people aware
of the specific amount of the toothpaste used and thus
make brushing more healthy.
Ningbo Institute of Technology
Zhejiang University
Ningbo, China
Ningbo Institute of Technology
Zhejiang University
Ningbo, China
Jikai Bao
Mingyang Ding
Yiting Dai
Chengcheng Feng