Sugar is one of the main nutritional elements of human beings, the main source of energy for human body, the flavoring agent of many foods and drinks, and also a recognized risk factor for the occurrence of caries. It is mainly sucrose, followed by glucose and starch, etc., which can easily cause caries. If you often consume too much sugary sweets or too many carbonated drinks, it will lead to tooth demineralization and cause caries or tooth sensitivity. Therefore, it is very important to promote the science of sugar consumption. The more times you eat sugar, the greater the chance of tooth damage, so you should try to reduce the number of times you eat sugar every day; drink less carbonated drinks, rinse your mouth with water or tea after eating, and not eat again after brushing your teeth at night before going to bed.