Conclusion: All 4 Opalescence products damaged enamel. Higher damage was done by the 10% carbamide peroxide and 20% carbamide peroxide products because of the much longer exposure period (112 hours in comparison to 7 hours).

Is Opalescence teeth whitening safe?

In fact, many dentists consider whitening the safest cosmetic dental procedure available. As with any tooth whitening product,Opalescence is not recommended for children under 13 years of age and pregnant or lactating women.

Does teeth whitening damage your teeth?

This begs the question “does teeth whitening damage the enamel?” The answer is no, teeth whitening doesn't damage your tooth enamel. The main portion of the tooth, the dentin, is the portion of the tooth that's responsible for your teeth's color.