It is also a common situation that tooth decay occurs in babies over 1 year old, mainly because the baby does not rinse the baby’s mouth with water in time after drinking milk in this period, which leads to bottle caries, mostly in the front incisors. If the caries itself is not very big, it can not be treated for the time being, because the baby is too young to cooperate, and there is a certain risk in the process of oral operation. For bottle caries, the parents of the baby can use gauze or finger toothbrush to clean the baby’s erupted teeth every day and clean the milk stains completely, or feed the baby with water after feeding, and then let the baby go to sleep. 1 year old baby tooth decay can be completely prevented in advance, I hope parents must pay attention to it.