Overview
- The ceramic powder, called BSCT, uses the piezoelectric effect under electric-toothbrush vibrations to generate reactive oxygen species for stain removal.
- In lab tests on tea- and coffee-stained human teeth, visible whitening appeared after four hours, with nearly 50% greater whitening after 12 hours versus a saline control.
- BSCT deposited strontium, calcium and barium ions on tooth surfaces, regenerating damaged enamel and dentin in laboratory evaluations.
- In rats brushed one minute daily for four weeks, the powder helped rebalance the oral microbiome, reduced inflammation, and killed Porphyromonas gingivalis and Staphylococcus aureus.
- The research by Min Xing and colleagues in Shanghai is published in ACS Nano, and next steps include formulation work, human safety and efficacy trials, and regulatory review.