Professional Teeth Whitening Months Before Crowns?
I have been given a present for teeth whitening by a dentist in UK which expires July. In September, I will be having my crowns replaced (6,7,10,11) while in the States. I have read that you should not have your crowns matched to your newly whitened teeth - to give it at least 3 days. Why would it not be okay (or even better) to have your teeth whitened a couple of months before matching to your new crowns? I will spend 2 months with ugly old crowns but is it ok to whiten now? PS thank you!