How long does the at home treatment last? How long does the in-office treatment typically last? If I go with the at home whitening, can I buy additional gel in the future to use with my molds? In other words, in a year or so when I want to freshen up my whitening job, I can go to a dentist office and buy more gel. How much does the gel usually cost. Thank you for your help.
valerie p. asked on Jan 29, 2012
The in office usually lasts a little bit longer. But with the at home bleach, you can refresh whenever you feel like your teeth are starting to lose the whiteness. You should have enough whitening gel to last a year.
Laura L. from Merchant replied on Jan 29, 2012