The precautions for children to change teeth include paying attention to oral hygiene, reasonable diet, pay attention to the growth of teeth and so on. 1. Pay attention to oral hygiene: During the period of the child’s teeth, we must pay attention to oral hygiene, brushing every day, and often rinse the mouth to prevent infection. 2. Reasonable diet: parents should pay attention to the adjustment of the child’s daily diet, do not eat too hard food, less puffed food, do not eat food at night before going to bed, eat more fresh vegetables and fruits, to ensure balanced nutrition. If necessary, supplement calcium. 3. Improve bad habits: During the tooth replacement period, parents should also pay attention to the growth of the child’s teeth, if you find that the permanent teeth do not grow, the milk teeth did not fall out or the replacement of the teeth in a strange shape, you should quickly seek medical attention to correct. During the period of tooth replacement, parents should also give their children more knowledge about tooth replacement, so as not to make children overly fearful. If there is any discomfort, consult a doctor promptly.