Tooth decay

Tooth decay

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Credit: EYE OF SCIENCE/SCIENCE PHOTO LIBRARY

Caption: Tooth decay. Coloured scanning electron micrograph (SEM) of plaque bacteria (brown) in a cavity in a decaying tooth. Plaque is a sticky substance made of food remains and the bacteria that naturally occur in the mouth. Bacteria feed on the sugars in the food particles and produce acid as a waste product. This acid corrodes the enamel coating of each tooth. Eventually a hole (known as a cavity) is produced which exposes the pain receptors in the tooth's sensitive interior. Cavities are prevented by brushing and treated by fillings. Magnification: x1200 at 4x4 inch size.

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Keywords: bacteria, bacterial, bacterium, caries, cavity, coloured, condition, dental, dentistry, disorder, healthcare, images, magnified image, medical, medicine, microscopic photos, odontology, oral, oral hygiene, scanning electron micrograph, sem, subjects, tooth decay

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