HealthNew Scientistabout 1 hour ago
Piezoelectric Toothbrush Kills Bacteria Better
3 min read
Researchers at Peking University developed a piezoelectric toothbrush that generates electricity through bending bristles. In tests with 109 adults, it reduced plaque by 40 per cent and gum inflammation by 40 per cent, outperforming conventional brushes which showed only 15 per cent reduction.
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