SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Not for use in Television.
Nicotine stained and decayed teeth. Decay (dental caries) and nicotine staining of teeth in an adult male patient who is a smoker. Caries is the decay and crumbling of teeth caused by bacteria in plaque, a substance that covers the surface of unclean teeth. Nicotine in cigarette smoke stains the teeth.
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