I just bought the crest night effects whitening kit?

Question

it says to only whiten your smile teeth? what are those? i made a picture with numbers and letters please tell me whitch ones they are.

http://s195.photobucket.com/albums/z143/luv_me_dont_hate_me2/?action=view&current=teeth.jpg

Answer 1

it means only the teeth that you see when you

smile whitens. like the ones you used the letters and numbers.

not the back ones.

Answer 2

It means to whiten only the teeth you see when you smile. So that would mean all the teeth you put numbers and letters on.

Smile into the mirror in a natural way, and then just whiten those teeth!