How does whitening work?

A toothpaste containing nanoparticles has been shown to whiten teeth by reducing the growth of bacteria.

Researchers have shown the product works by reducing plaque.

They say it could be used in other settings as well.

Nano particles are small, white particles which can be found on the surface of living cells.

The product, whitening powder, is a nanoparticle-based toothpaste that is supposed to remove plaque.

The study, which looked at people’s teeth for more than 30 years, found the product reduced plaque levels by more than 60 per cent.

The researchers say the toothpaste can be used as a moisturiser and to remove excess grease from the teeth.

“We’ve shown that it reduces plaque and soft tissue in the mouth,” Dr Rachel Lefebvre, from the University of California, Berkeley, said.

What does whiten mean?

White teeth are the result of the normal growth of plaque and bacteria.

Dr Lefevre said the nanoparticles were created by the immune system and did not have a harmful effect on the teeth or surrounding tissue.

However, they can also help to prevent tooth decay.

“We don’t know if whitening works as well on the plaque or soft tissue as it does on the tooth,” she said.

“So we need to do more research to really find out.”

Researchers say the whitening is effective in reducing tooth decay and plaque.

Dr Lefebe says the nanoparticle product is still in the early stages of testing.

“I think there is a lot of promise that whitening might work on other things as well, and I think that is something that we will be doing a lot more research on,” she added.

More to come

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