MANFRED KAGE / SCIENCE PHOTO LIBRARY MANFRED KAGE / SCIENCE PHOTO LIBRARY
Plaque bacteria. Coloured scanning electron micrograph (SEM) of bacteria in plaque from teeth. Dental plaque is a biofilm of bacteria that forms on teeth. It can lead to tooth decay if not removed by regular brushing. Magnification: x5200, when printed 10 centimetres wide.
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