Coke pH <5.7 can cause certain damage to teeth. pH <5.7 when the tooth surface starts to dissolve, the longer the low pH is maintained, the more minerals flow out of the teeth and the more serious the demineralization is. Coke contains carbonic acid, under the action of bacteria sugar will be decomposed into acid, corrosion of the tooth surface, resulting in tooth demineralization and dissolution, long-term consumption of large amounts of Coke, orange juice, etc., can lead to tooth corrosion by acid, causing tooth sensitivity, staining, and more serious symptoms of deficiency. Coke causes tooth corrosion, must change the habit of long-term consumption of cola, try to drink plain water, plain water is the healthiest natural beverage. If you especially like to drink acidic beverages, it is best to use a straw and drink less if you can, or if you can't drink less, drink through a straw to avoid long periods of time with your teeth in cola, which can lead to tooth demineralization and reduce the chance of acid contact with your teeth. Once you have consumed cola, be sure to rinse your mouth as much as possible and chew gum. After eating acidic food, rinse your mouth as much as possible to remove the acid residue in your mouth, but avoid brushing your teeth within one hour of drinking. If you brush your teeth immediately after eating something acidic, your teeth will be easily softened by the acid and then worn out. Of course, you can also use fluoride mouthwash or fluoride toothpaste on the surface of your teeth to prevent tooth sensitivity from occurring. However, fluoride mouthwash is not recommended for long-term use, because long-term use of mouthwash can easily lead to tooth staining and oral soft tissue staining. Therefore, a long and correct brushing method is a better health care method to maintain oral hygiene as well as to prevent tooth decay.