Many of us gripe over the dingy appearance of yellowish teeth due to stains caused by age, tobacco, coffee, or tea. Even antibiotics or too much fluoride can cause discoloration on our smiles. Are you taking iron tablets? These could leave black marks on your teeth. Sometimes genetics can even play a role in teeth discoloration. Aging can cause the outer enamel to wear thin, revealing the natural yellow color of dentin. Extrinsic stains are the most common type of stain. Extrinsic stains appear on the outer surface of one's teeth.
If you are bothered by these stains, perhaps you should seek a whitening solution in %cityOrState%! %cityOrState% is the home of many dentists who offer teeth whitening solutions, so look no farther.