Post by sizzling07 on Dec 1, 2011 6:11:58 GMT -5
The main difference in the teeth whitening systems used at home or at the dentist is the percentage of peroxide. Treatments from the dentist will have a higher percentage of peroxide, and may be left on the teeth for one to two hours per session. Teeth whitening systems for use at home will have a lower percentage of peroxide, and are typically only left on the teeth for approximately 30 minutes per session.