The price of a tooth filling for children costs about 200 yuan for one tooth, but each hospital has different rates and each baby has a different degree of tooth decay, so the exact cost will vary. If it is simply a small area of enamel damage, the cost is very low. If it is the pulp and nerve damage, you need to do braces later, and the cost will be more than 1000RMB. So when the child has tooth decay, you must take the child to the doctor in time to stop the damage. Children should follow the doctor’s instruction for regular follow-up after filling, do not eat or chew hard things with the newly filled tooth to prevent the tooth from fracture and filling from falling off. In case of slight pain, self-observation can be carried out first. Some children’s slight discomfort and pain can disappear by themselves. If the pain is not reduced, but further aggravated on the contrary, or there is biting pain, jumping pain, cold and hot stimulation pain, spontaneous pain at night, you should go to hospital for follow-up examination and treatment in time to find out the cause and eliminate the pain. In addition, if the tooth decay of children is more serious and the tooth is missing in a large area, it is often easier to fracture the tooth when chewing food due to the insufficient resistance of the tooth itself during the period after the tooth restoration. Therefore, such children should do the shell crown protection of the affected tooth according to the physician’s suggestion in time after the filling to prevent the crown from fracture.