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According to a research, 45% of brush users have experienced the hurt of gum caused by the head of tooth brush.
In order to solve this problem, Air-Toothbrush devised an air sac at the head of the brush..
Whenever the brush unconsciously hits the gum,the air sac will relieve the pain by deforming.
Xihua University
Chengdu, China
Xihua University
Chengdu, China
JinFeng/Lei
Long/Zeng
XuJiang/Zhao
Yao/He