Pearly whites are not good enough for many people nowadays, they want “bombshell whites”. That is the reason for the increasing demand for tooth whitening.
Dentists do a very effective kind of whitening, using highly concentrated peroxide bleach, that is often augmented by a special light. The treatment is not cheap, though. Thus, that’s where the numerous over the counter tooth whitening kit comes in. However, the result is not as dramatic as that of the procedure done by a dentist. Teeth get somewhat whiter, but not dramatically so.
So, what’s the bottom line? Home kits do whiten teeth for far less than you’d pay for a professional treatment. If you ever opt for over the counter kits, be aware that bleach does not lighten crowns, veneers, bridges and fillings. Furthermore, you may have some tooth sensitivity or gum irritation which are usually minor and temporary. Just don’t overdo it, as sensitivity and irritation may occur for a prolonged period of time.