Tooth transparency is not also a good candidate for in-office treatment. The front teeth most especially are very thin and gets more and more transparent with age. For this a different procedure may be taken. Aside from those mentioned above, in-office whitening could be conducted with basically the same procedure. Increased teeth sensitivity This is more likely to happen when the treatment is done in a clinic or a health spa because bleaching agents that are used are more concentrated than home bleaching kits. More concentration of the bleaching agents however means faster results compared to home treatment methods that are very much "watered down" to insure safety. Majority of these stains that can be removed by the paste include stains made by drinking coffee or by smoking. The paste can be used as well in the bleaching and at the same time best used when maintaining that shiny white teeth. But be reminded that this product will not work to change the natural color of the teeth that has been overly exposed to the fluoride during its development. But a clean white and shiny teeth is so important, very much so that even in ancient times royalties and people who can afford it applies whitening powder to their teeth even when it has proven to accelerate teeth rotting. So important in fact that while not all of us could flash a George Clooney smile, we do not want to draw attention where the attention should not be. If you are willing to undergo this kind of specific procedure, keep in mind that the approved method is through the use of the blue-spectrum light. If the budget is not enough to cover the professional whitening sessions, then the option is to go for the home bleaching kit. But with these, the whitening sessions will be done by yours on your own time. Depending also on your condition, the concentration of carbamide peroxide in your bleaching tray could be lowered by your dentist to insure comfort as the teeth is being bleached. There are many cases where the staining is deep and for the meantime intractable. No amount of bleaching will be effective unless other procedures are conducted first.