But the main portion of the tooth, the dentin, is the part that's responsible for your tooth color -- whether white, off white, grey ... the teeth are discolored, pitted, and difficult to keep ...

You have tooth discoloration when your teeth are stained ... is less effective for people with brown teeth. If your teeth are gray or purple, tooth bleaching probably won't work at all.

Over time, additional elements left behind by foods and drinks can start to make teeth yellow or gray. However ... whitening kits may help with mild discoloration, but black teeth typically ...

Even small brown, yellow or black discolorations on the teeth can have a disruptive effect. However, hardly anyone can avoid such spots: Not only does tartar cause discoloration, but also many foods ...

Anna Baluch is a freelance writer from Cleveland, Ohio. She enjoys writing about a variety of health and personal finance topics. When she's away from her laptop, she can be found working out ...