How Teeth Whitening Products Can Damage Your Teeth

April 16, 2019 by Meridian Hospitals0
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Teeth are an important part of physical appearance for many people, and they want to show a bright white smile. However, a new study reveals that many tooth whitening products can damage the teeth.

New research reveals why we should treat tooth whitening products with caution.

Studies have shown that most human teeth are not naturally pearl-white. In reality, most teeth are different shades and hues that tend towards yellow. Nor are teeth uniformly colored.

Despite this, there is an idea — which is especially prominent in North American societies — that perfectly white teeth are a symbol of beauty and self-care.

For this reason, many people opt to whiten their teeth, either on their own or with the help of a cosmetic dentist.

Statistic reports indicate that about 40.5 million people in the United States used tooth whitening products in 2018.

Various studies now show that whitening teeth with bleaching products that contain hydrogen peroxide can endanger tooth health.

Researchers from Stockton University in Galloway, NJ, aimed to find out exactly how hydrogen peroxide harms the teeth, and which part of a tooth it attacks.

The research — which was led by Kelly Keenan, an associate professor of chemistry at Stockton University — will feature at the Experimental Biology 2019 meeting, which is part of the annual meeting of the American Society for Biochemistry and Molecular Biology in Orlando, FL.

Bleach attacks sensitive tooth layer

Specifically, the researchers looked at how whitening strips, which people can buy over-the-counter, damage one of the teeth’s three layers.

Dental whitening strips typically contain hydrogen peroxide as the main active ingredient. This substance is an oxidizing agent that some people use a sterilizer, although more people may know it as a color-lightening agent. This is also the main substance that people use to bleach hair.

If a person overuses or uses too much of this substance to lighten hair color, it can cause “significant damage” to the hair and scalp.

Now, Keenan and team have discovered how hydrogen peroxide damages dentin, the “middle” layer of teeth. A tooth contains three different layers: a shiny enamel external one, a dentin layer in the middle, and an inner layer that is mainly connective tissue, which helps keep the tooth safely in place.

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