You don't have to take good care of all your teeth, just the ones you want to keep.
Over time, your teeth may have become stained naturally. Teeth whitening or bleaching can restore the teeth's natural color or make them even brighter. Many people are born with naturally dark teeth, and cosmetic dentistry can give these teeth a whiter, more natural color in just a few treatments. If your teeth are crooked or mismatched, or if they are too small or thin, these problems can also be solved by cosmetic dentistry.