It is also normal for babies to have their upper teeth first. The order of tooth eruption is different for each baby, but most babies have their lower teeth first, most likely because of genetic factors, and the parents themselves have their upper teeth first, which makes it easier for the baby’s upper teeth to develop early and does not have any effect on the eruption itself. Many parents need to understand the order of eruption and how many milk teeth there are in order to better protect the baby’s teeth. The baby itself has 20 milk teeth and the order of eruption is not necessarily fixed, but in most cases, the third tooth erupts later, corresponding to the permanent teeth. Once the baby’s teeth have erupted in the mouth, parents should carry out oral maintenance, you can use wet gauze to clean the baby’s mouth, while playing the role of massage gums, to reduce the baby’s discomfort in the eruption of teeth.