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Toothbrush Zaps Bacteria with Electricity Made when Bristles Move

Summary by Nature
Nature, Published online: 04 November 2026; doi:10.1038/d41586-026-03586-yInnovative polymer could give the manual toothbrush its first radical redesign in more than 1,000 years.

10 Articles

Scientists have created a novel toothbrush that kills bacteria using electricity generated during brushing.

·Tallinn, Estonia
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Lean Left

As it rubs against the teeth, the experimental toothbrush releases electrical charges that neutralize bacterial plaque. The post “Piezoelectric” toothbrush kills bacteria with current — And works without battery appeared first on in.gr.

·Greece
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Left

Researchers have developed bristles that produce electric charge with the movement of the brush and damage bacterial membranes

·São Paulo, Brazil
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The concept of toothbrushing has fundamentally changed for the first time in 1,000 years. A toothbrush has been developed that kills cavity-causing bacteria by emitting electricity rather than using physical force. It is expected to eliminate plaque, the cause of cavities, thereby preventing gum disease at the source. Researchers at Peking University School of Dentistry announced on the 5th, “We have developed a toothbrush that eliminates bacter…

A research team at Peking University has developed a toothbrush that uses the electricity generated when the bristles bend to kill bacteria that cause cavities and periodontal disease. The mechanism generates electricity solely through the act of brushing, without the use of batteries, and experiments have confirmed that it is more effective in reducing plaque and gum inflammation than conventional toothbrushes.

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Nature broke the news in London, United Kingdom on Wednesday, November 4, 2026.
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