Nanotechnology makes teeth too slippery for harmful bacteria

Nanotechnology makes teeth too slippery for harmful bacteria

Even very simple forms of nanotech can be surprisingly useful. Polishing teeth with silica nanoparticles produces much smoother surfaces than does polishing with larger silica particles, making it easier to remove harmful bacteria. From ScienceDaily “New tooth cavity protection: nanoparticles make surface too slippery for bacteria to adhere“:

Clarkson University Center for Advanced Materials Processing Professor Igor Sokolov and graduate student Ravi M. Gaikwad have discovered a new method of protecting teeth from cavities by ultrafine polishing with silica nanoparticles.

The researchers adopted polishing technology used in the semiconductor industry (chemical mechanical planarization) to polish the surface of human teeth down to nanoscale roughness. Roughness left on the tooth after the polishing is just a few nanometers, which is one-billionth of a meter or about 100,000 times smaller than a grain of sand.

Sokolov and Gaikwad showed that teeth polished in this way become too “slippery” for the “bad” bacteria that is responsible for the destruction of dental enamel. As a result the bacteria can be removed fairly easily before they cause damage to the enamel.

The research was published in the Journal of Dental Research (abstract).

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  1. […] USING NANOTECHNOLOGY to make teeth too slippery for harmful bacteria. […]

  2. Anonymous December 30, 2008 at 7:44 pm - Reply

    What brand(s) of toothpaste use this new technology?

  3. More Human Advancements | Tariq Nelson December 31, 2008 at 1:00 pm - Reply

    […] Nanotechnology would make teeth too slippery for harmful bacteria […]

  4. Anonymous January 5, 2009 at 11:48 pm - Reply

    How LONG did the slipperyness last on the teeth? In other words, how much better will it be to use some future tooth-paste with these nano-sized abrasive particles every night, COMPARED to regular flossing and brushing every night?

    Dr. Ed Reifman, DDS

  5. a Dentist July 10, 2010 at 6:32 am - Reply

    This is impossible to make and will never happen. Germs do not need friction to attach. Its an interesting read, but thats it.

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