Drinking carbonated drinks with sour teeth generally means that the teeth have dentin sensitivity. In addition to the application of carbonated drinks, the patient may also experience discomfort from hot and cold stimulation of the teeth. For this situation, if the symptoms are not particularly serious, you can consider applying some anti-allergy toothpaste, mainly consider applying some fluoride toothpaste or professional anti-allergy toothpaste, which can reduce this phenomenon. If the dentin is more sensitive, it is possible that the application of anti-allergy toothpaste is not particularly ideal, then it is recommended to go to a professional dentistry, the dentist to check the specific sensitive parts, and then apply professional desensitizer, for the allergic tooth surface desensitization, relatively speaking, the effect will be much better. Finally, it should be noted that carbonated beverages themselves can cause greater damage to the teeth, so it is recommended that people drink as little carbonated beverages as possible if they can, and even if they have to drink carbonated beverages, it is recommended that they rinse their mouths in time after drinking them, so as to reduce the damage caused by carbonated beverages to the teeth.