Plaque is a biofilm containing bacteria and food debris. The bacteria feed on the food and produce acids. Acid eats into the enamel and weakens it (decalcification) allowing the entry of the bacteria that continue to produce more acid and weaken more tooth structure. Decay in your mouth is a bit like rust on your car unless you fix it it will just get worse and once you have fixed it you have to keep an eye on it because the edges may develop more decay (or rust - as the case may be)
How does plaque turn into tooth decay/a cavity?
The surface of our teeth is very smooth, once plaque has attached it is hard as a rock and very rough. This makes the tooth rough in that area now and everything will stick. Therefore creating a bacteria breeding ground. The only way to get rid of plague is to have a deep scale cleaning by your hygienist.
Skin
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