WHY SHOULD WE BRUSH OUR TEETH?

NAME : NURHASAN (08211210078)
CLASS : 3A-2

WHY SHOULD WE BRUSH OUR TEETH?
We brush our teeth because we know that if we do not bits of food will collect in the gaps between our teeth. The food will go bad and start to smell. Our teeth will start to darken in color, and eventually they will also go bad. At some point, we will have no teeth left. This process can be explained biologically as follows. Our teeth naturally become coated with a substance called plaque, which contains bacteria. When these bacteria come into contact with sugars, they convert the sugar into acids such as lactic acid. The acids attack the enamel of your teeth and make holes in it. Bacteria enter through these holes and attack the soft insides of your teeth. Very soon you have no teeth left. To stop your teeth from decaying, you have to remove the plaque as often as possible. This means cleaning your teeth every night and every morning. Many people clean their teeth with toothbrush and toothpaste. Toothpaste contains a polishing agent such as chalk and a small amount of a cleaning agent such as sodium lauryl sulphate. These are usually blended with a flavouring, such as peppermint, and a sweetener. In addition, a preservative is added to stop the toothpaste from going bad. It is also necessary to add another ingredient to keep the toothpaste from drying out. So toothpaste is a mixture of chalk and soap. Dental scientists claim that a small amount of fluoride can reduce the chance of decay. Fluoride strengthens the enamel and helps it to fight off the acid attack.