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50.7 MB (3.3 MB compressed)
4872 x 3638 pixels
41.1 x 30.7 cm ⏐ 16.2 x 12.1 in (300dpi)
STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Dental plaque, coloured scanning electron micrograph (SEM). Plaque consists of bacteria (red and yellow) embedded in a glycoprotein matrix (orange). The matrix is formed from bacterial secretions and saliva. If not removed regularly, plaque can lead to dental cavities (caries) or periodontal problems (such as gingivitis). Magnification: x6000 when printed at 10 centimetres wide.
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