Forget electric toothbrushes and mint-flavored mouthwash. The best thing for your teeth, according to University of Pennsylvania researchers, might someday be nanoparticles.
According to a new study in rats, iron-containing nanoparticles may be better at destroying cavity-causing plaque than nearly any other tooth-cleaning technique.
These tiny particles act as catalysts to promote a natural cleaning process in your mouth. The process can kill bacteria thousands of times more efficiently than a traditional brush, the paper in the journal Biomaterials suggests.
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