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Teeth-Whitening Agents May Harm Enamel Protein in High Concentrations: Study

August 31, 2021
by CTV News


Bad news for those aiming for the brightest smile — according to a new Canadian study, certain teeth-whitening agents may be more dangerous than previously thought, able to damage not just the surface enamel, but all the way to the centre of the tooth.

A study led by researchers with the University of Toronto and published last month in Nature Scientific Reports looked at carbide peroxide tooth whitening treatments, and found that the recommended application of just 10 per cent carbide peroxide can reduce enamel protein content by up to 50 per cent.

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