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A self-charging toothbrush that generates electricity to kill bacteria while you brush
Medical Xpress • • health
Key Points:
- Researchers at Peking University have developed a battery-free toothbrush that generates electricity through special bristles made of PVDF plastic, which produces antibacterial substances when flexed during brushing.
- In a three-month trial with 115 adults, those using the self-charging toothbrushes experienced a 40% reduction in plaque compared to 15% with standard brushes, along with less gum inflammation and bleeding.
- The electric charges generated by the toothbrush help kill plaque-causing bacteria more effectively than traditional mechanical scrubbing alone.
- While results are promising, the researchers emphasize the need for longer-term studies to confirm the sustained benefits and overall impact on oral health.
