Used toothbrush under electron microscope

Used toothbrush bristle. a bristle from a used toothbrush. It is covered in dental plaque. Plaque consists of a film of bacteria embedded in a glycoprotein matrix. Plaque is the main cause of tooth decay. The bacteria feed on sugars in food, producing acid as a waste product. This acid corrodes the teeth's enamel coating, resulting in dental caries. A build-up of dental plaque can also lead to inflamed and infected gums.