They could also be calcification due to calcium deposits in your enamel. At any rate they will initially whiten faster than the rest of your teeth but as you continue the whitening treatment with our complete kit they will even out beautifully. We are members of the Better Business Bureau and we would love to give you and your sister a lovely smile. I just got my trays and have worn them twice for two hours at a time. I also have slight tooth sensitivity in a couple of my teeth.
Sensitivity is common.
You should continue using it every other day for the first week and then every day for the second and the third week try overnight treatments. As your teeth become accustomed to the gel you will notice less sensitivity. You should be able to dispense 3 treatments out of one tube both upper and lower. No, the retainers get picked up in the impression and are duplicated onto the mold, so that the final trays fit over it. Clinically, they are now saying that whitening your teeth enamel lesion wise, is about as bad as drinking a 16 oz. cola.