Perhaps many mothers think that dental caries is the patent of older children, in fact, it is not. A data show that the prevalence of dental caries in Beijing children 3 years old has reached 60%, this data is not reliable we have no way to prove, but we can be sure that caries is not the patent of the older children, dental caries from the baby from the age of 1 year old, that is, 6 months after the eruption of milk teeth caries may occur. The most common dental disease in babies around the age of two and a half is “bottle caries”. “Bottle caries is a common dental disease in infants and young children, and is caused by inappropriate feeding habits of adults and the retention of fermentable sugars around the teeth for long periods of time. Severe bottle caries can cause eating and drinking difficulties, affect pronunciation, and even the alignment of permanent teeth in the future. The bacteria most closely associated with bottle caries is Streptococcus pyogenes, whose greatest source is the baby’s parents, and the main infectious agent is saliva. So parents should develop good feeding habits for the sake of their baby’s dental health. First of all, do not chew food for your child and do not share spoons with your child. At the same time, milk, breast milk, fruit juice, honey, sugar water, etc., may form a harmful acidic environment for baby’s teeth, resulting in decalcification of the tooth surface. Therefore, do not feed your baby milk for too long, and it is best to feed them within twenty minutes each time. If the baby has the habit of sucking milk while sleeping, it is also easy to lead to “bottle caries”. So do not let the baby sleep with the nipple, such as the baby has this habit, you can take the following approach to help babies quit this habit: replace the bottle of milk with warm water to gradually dilute the way, so that both to the baby to replenish the water, but also clean the mouth, two birds with one stone. Young moms may want to give it a try. In addition, milk leftovers in the baby’s mouth may cause white spots on the baby’s gums or tongue, causing pain or other problems in the baby’s mouth, at which point the child will cry. Therefore, it is important to keep your child’s mouth especially clean, and it is best to take a wet gauze or towel after each feeding to promptly wipe away the milk residue in your child’s mouth.