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crest white strips okay to use after invisalign

Posted: Fri Sep 14, 2018 8:11 am
by liner
As my teeth are now finally straight after 18 months of invisalign!!!, can I use white strips to whiten teeth?
I forgot to ask my Ortho and heard that you should wait about 6 weeks since there may still be some residue left from the attachments which doesn't somehow work well with the strips. Not sure how? Maybe the residue causes the strip to stick more or leave white spots?
Anyone have any idea?
thx