Whitening Toothpastes Can Endanger the Enamel

Published:July 11th, 2010

There are two main ingredients that are included in toothpastes that claim to also whiten your teeth. Carbamide peroxide or sodium tripolyphospate and an abrasive agent such as silica, calcium carbonate or dicalcium phosphate. Carbamide peroxide is the substance found in all teeth whitening products, but when you brush your teeth, it is not in contact with your teeth for a long period of time. This means no reaction can take place.

In fact, the abrasive agent is what can account for the teeth whitening effect. However, the bits of silica that can rub off surface stains, can also remove bits of enamel. This is why long term use of such teeth whitening toothpaste may have a harmful effect on the enamel, thus enabling plaque and bacteria to damage the teeth.
Because teeth whitening is a relatively new field, there have not been many tests or studies that can shed light on the effectiveness of the teeth whitening toothpastes. Perhaps the best thing you can do is to alternate the whitening toothpaste with a regular one to protect the enamel.

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