okay, so i drink coffee daily and smoke cigarettes occasionally...and i have started to use the crest whitening rinse, i plan on using it once in the morning and once at night like the directions say, so my question is: for those of you who also used it twice daily like reccommended, how did it work for you, and how long did it take for you to see big differences in how white your teeth were/are....did it change many shades?
2007-01-07
07:15:52
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3 answers
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asked by
jennybilbo_10
2
in
Health
➔ Dental