The newborn’s mouth needs to be cleaned. Oral cleaning for newborns can maintain good oral hygiene, can provide a good environment for the growth of the eruption of milk teeth, but also to avoid the residues of complementary foods, milk clots, etc. to stay in the mouth, to avoid the emergence of oral odor, oral inflammation. The oral mucosa of newborns is very fragile, especially during teething. During teething, if the mouth is not well cleaned, it is easy to cause oral diseases, if the bacteria in the mouth into the gastrointestinal tract, will also lead to gastrointestinal symptoms. When teeth are not yet erupted, you can drink warm water after eating. When milk teeth begin to erupt gradually, you can use soft gauze to gently wipe the newborn’s gums. If 6 to 8 teeth have already erupted, you can use a baby toothbrush for teeth cleaning. For specific methods of newborn teeth cleaning, consult a medical professional for advice.