Bristles made from piezoelectric polymer.
Key Clinical and Lab Results
• Bacterial Kill Rates: In laboratory tests, the piezoelectric bristles killed roughly 53% of Streptococcus mutans (cavity-causing bacteria) and 78% of Porphyromonas gingivalis (gum-disease bacteria), compared to less than 10% for standard nylon bristles. • Plaque Removal: When tested on cultured human plaque, the piezoelectric bristles removed over 99% of the plaque compared to 80% for nylon. • Clinical Trial: In a 3-month trial of 109 to 115 adults, users of the piezoelectric brush experienced a 40% reduction in dental plaque, gum inflammation, and gingival bleeding, compared to a 15% reduction in the conventional nylon-brush group. Genetic sequencing also showed a drop in harmful oral bacteria and an increase in beneficial microflora. • Safety: Participants reported no side effects like pain, numbness, or shocks, though researchers note that larger, long-term studies are still needed to confirm cavity-prevention outcomes and commercial viability.
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