One year old babies already have a small number of milk teeth erupted in the mouth, after eating, parents can wrap wet gauze around the finger, dipped in water to scrub the surface of the teeth. With the gradual eruption of milk teeth, parents can first help the baby to clean the surface of the teeth, should be small head cone-shaped toothbrush dipped in a small amount of non-fluoride toothpaste to clean the teeth, and cultivate the child’s interest in brushing teeth. With the gradual growth of the baby, you can develop the habit of brushing teeth independently under the supervision of parents. Babies can brush their teeth in the order from inside to outside, from near to far, and after mastering the correct method of brushing, they should also develop the hygienic habit of brushing their teeth in the morning and evening, and rinsing their mouths after meals. As the baby’s swallowing function is not yet perfect, can contain rinsing saline, without adding any drugs.