I have yellowish teeth and would very much like to have a much whiter smile.  The question I have is my teeth have always been some what sensitive to hot and cold items.  The dentist says my teeth are find and to use sensitive toothpaste in the first week of every month and it should help me.   It does but not completely.

I heard that most teeth whitening treatment make your teeth sensitive and I am worried if I do whiten my teeth I would have a even bigger problem with sensitivity.  I been thinking about Go Smile since it says it does not cause sensitivity in teeth.  However it is $120.00  which is just too much for me right now.

I not sure what to do.  Does whitening toothpaste really work?  Or should I just save my money until I can afford to get the Go Smile product?   Advise please