Teeth whitening is a billion-dollar ritual, but it’s rarely a “healthy” one. Most often, it’s like trading yellow stains for ...

“Early humans used chewing sticks, twigs, bird feathers, animal bones, and plant fibers to remove debris from their teeth,” ...

A new vibration-activated whitening powder uses electric toothbrush motion to brighten teeth while repairing enamel and influencing oral bacteria. Tooth stains are not always a brushing problem. Some ...