March
30 April 2009
discoloration of teeth may result from bacteria stains, tobacco, tea, coffee, foods with an abundance of chlorophyll, restorative materials, and medications.
stains from bacteria may cause colors varying from green to black to orange. Green stains also result from foods with chlorophyll or excessive exposure to copper or nickel.
amalgam, a common dental restorative material, may turn adjacent areas of teeth black or gray.
chlorhexidine, a mouthwash, is associated with causing yellow-brown stains near the gingiva on teeth.
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