Coffee, tea, tobacco, aging, and medications can all affect tooth color, but not every kind of discoloration responds the same way. Whitening works on natural tooth structure; it does not lighten crowns, fillings, veneers, or other restorations.
Before you buy a kit or choose a shade
It is worth checking for cavities, gum irritation, exposed roots, or another cause of discoloration before whitening. We’ll also look at visible dental work so you know whether lightening the surrounding teeth could create a color mismatch.
Some people notice temporary tooth sensitivity or gum irritation. We can talk about the professional options available, what a realistic change might look like, and how to use the product safely. More whitening is not always better, so follow the directions rather than extending the time on your own.