Just after drinking Coke it is recommended to rinse your mouth first. Generally drinking or eating acidic food, it is not recommended to brush your teeth immediately, because the carbonic acid in cola will synthesize the bacteria in the mouth, which can easily cause demineralization of the teeth, so that the teeth will be corroded, and the harm produced is also more serious. It is important to note that long-term consumption of carbonated beverages such as cola will mostly be prone to dental erosion, which may lead to the exposure of dentin, resulting in the teeth becoming sensitive to both cold and acid. And if you drink sweet and sour or stimulating beverages, it may lead to a large number of bacteria breeding in the mouth, which in turn causes the risk of gingivitis and periodontitis. In addition, it can also lead to changes in the color of the teeth, such as yellowing, blackening and other problems. Therefore, after drinking cola, you should immediately rinse your mouth with a mouthwash containing fluoride, which can have a protective effect on the teeth corroded by carbonated beverages by rinsing them.