Why do teeth stay yellow no mater how much you brush?

Another reason for yellow teeth other than neglecting oral hygiene. Teeth have pulp (the life center of the tooth) and the pulp's color (red) along with the dentin (which is yellow) helps to give our teeth the color we have, some people have very thick enamel where others do not. Remember there are thousands of shades of white. Perfectly white teeth really are not natural and can look like ';chiclets'; gum if you choose to have them veneered or bleached in an unnatural white shade.Why do teeth stay yellow no mater how much you brush?
There are different shades of ';white'; for teeth. Some teeth are more yellow colored than others. Some are stained by coffee, tea,foods etc and brushing usually doesn't completely remedy this. Some people have discolored teeth because they took certain medications as children (tetracycline).Why do teeth stay yellow no mater how much you brush?
its just the way they are. teeth whitening either bleaches your teeth or scratches off a thin layer so it looks white.its very harmful to them though. if your teeth are extremely yellow, just drink more milk. gotta have that iron!
we dont do it enough, or we dont floss everyday. its usually one of those factors. usually a case of gingivitis.

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