Reaction Time of 22% Carbamide Peroxide 1 hour and 2 hours

Question

Hello, What percentage of 22% Carbamide Peroxide will be fully reacted: A) After 1 hour B) After 2 hours Thank you.

Patric Cohen, DDS, FAGD · Answer

I would agree that the active time for whitening material is between 1-2 hours. After that you really aren't getting any benifit.

David M. Schertzer, DDS · Answer

After about 90 minutes there is no benefit to the whitening gel.  Some minimal whitening can occur after 60 minutes but it can also lead to increased sensitivity.

Reaction Time of 22% Carbamide Peroxide 1 hour and 2 hours

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