P&G receives U.S. patent for teeth-whitening device

Procter & Gamble (P&G) has received a U.S. patent for a teeth-whitening device, according to an August 21 report in the Cincinnati Business Courier.

The unnamed device uses blue visible or near-visible ultraviolet light in conjunction with peroxide-based substances to bleach teeth, according to the report. The device is portable, compact, and self-contained.

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