Chinese scientists make toothbrush that uses electric shocks to reduce plaque - South China Morning Post
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Chinese scientists make toothbrush that uses electric shocks to reduce plaque South China Morning Post
Chinese scientists make toothbrush that uses electric shocks to reduce plaque South China Morning Post
Original Source
https://www.scmp.com/news/china/science/article/3373278/chinese-scientists-make-toothbrush-uses-mild-electric-shocks-reduce-plaque
