What is best teeth whitener?

Teeth whitening has become the most popular cosmetic procedure in the world for people who want to look younger, more confident and attractive. However, it's important to understand that this popular practice has its own limitations and drawbacks and, in fact, is not for everyone. Women who are pregnant or nursing are advised against whitening, as are people who are suffering from gum disease. Whitening is also not recommended for people with cracked teeth or cavities in the areas that they want to be whitened. And, of course, it's also important to remember that most teeth whitening procedures only work with natural teeth; veneers, crowns, bondings and fillings don’t usually respond to whitening agents. So, if you can whiten your teeth, how white will they be? Results are subject to their existing undertone. Most people have a slight undertone to their smiles ranging from palest yellow, to palest brown to palest gray. According to the American Dental Association, people who have a yellow undertone have higher degrees of whitening success than people with a brownish undertone. For people with gray undertones, however, there's some disappointing news. These teeth are generally the least responsive when it comes to bleaching. (Exceptions occur, however, so speak with your dentist). Ideal bleaching candidates are those whose teeth have discolored or stained due to the consumption of tea, coffee, wine or cola. Dentists can also help people with stains or discoloration caused by either genes or antibiotic use, but results may not be as dramatic. Dentists say that they can frequently lighten such stains, but not as much as many patients would like. So, if you’re a good candidate for tooth whitening - what works and what doesn’t? Check this link for options available http://www.teethwhiteningreviews.com/artman/publish/what_works_and_what_does_not_for_teeth_whitening.php