Tooth decay, SEM

Tooth decay, SEM

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Caption: Tooth decay. Coloured scanning electron micrograph (SEM) of a decaying tooth. A hole, or cavity, can be seen in the foreground. Tooth decay occurs when there is a build up of plaque in the mouth. Plaque is the sticky substance made of food remains and naturally-occurring bacteria. Bacteria feed on the sugars in the food particles and produce acid as a waste product, which corrodes the enamel coating of each tooth. Eventually 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: x2500 when printed 10 centimetres wide.

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Keywords: acid erosion, anatomical, anatomy, biological, biology, caries, cavity, close-up, coloured, condition, corroded, dental, dentistry, detail, disease, disorder, enamel, enamel coating, false-coloured, grey, hole, human body, images, magnified image, medical, medicine, microscopic photos, mouth, odontology, oral, oral hygiene, scanning electron micrograph, scanning electron microscope, sem, subjects, tissue, tooth, tooth decay

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