Q: will there be instances in which Crest Whitestrips don't work? i need all the help i can get. i am asking again because my teeth are really bothering me.
My teeth are yellow. i dont drink tea or soda. i used to not brush for quite a long time. i have been brushing regularly for half an year. what can i do to get whiter teeth asap? i will continue with the brushing routine but my teeth are so ugly i cant smile and people think im weird!!!