Children over 3 years old can use fluoride toothpaste. Because fluoride toothpaste not only can inhibit the growth of bacteria, but also can improve the hardness of teeth, enhance the acid resistance of teeth and prevent tooth decay. 1.It is forbidden to use fluoride toothpaste before 3 years old because babies have poor self-control and easily swallow toothpaste; 3-6 years old should be used cautiously under the guidance of adults. 2. Above 7 years old, you can use fluoride toothpaste, but do not swallow the toothpaste into the abdomen, and rinse the toothpaste clean after brushing. 3. Be sure to pay attention to the amount of toothpaste used, use only the size of a soybean grain each time, and no more than 1 cm at most. 4, high fluoride areas of children, the use of fluoride toothpaste should first be approved by the doctor. 5, choose a suitable small mouthwash cup, require exquisite workmanship, light weight cup, especially the mouth of the cup should be rounded and smooth, not to scratch the child’s lips.