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Titanium dioxide is often used in dentistry and various oral healthcare products like toothpaste and mouthwash due to its whitening properties. However, the effect of titanium dioxide in the mouth is quite controversial.
Some studies suggest that it may have detrimental effects on oral health. It is abrasive and can theoretically contribute to the thinning of tooth enamel with long-term use.
There are also concerns about its potential carcinogenic effects. The International Agency for Research on Cancer classified titanium dioxide as a group 2B carcinogen, which means it's possibly carcinogenic to humans.
Titanium dioxide nanoparticles might accumulate in the gums, leading to inflammation and potentially contributing to periodontal diseases.
However, more research is needed to conclusively establish the risk titanium dioxide poses to oral health. Additionally, the FDA currently considers it safe for use in food and cosmetic products, so it is generally considered safe at low concentrations.
In conclusion, while titanium dioxide’s whitening effects can be beneficial for cosmetic purposes, potential users should be mindful of the ongoing debate regarding its safety.
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