The deciduous teeth has enormous contribution to the development of the human brain, first is to strengthen the absorb nutrition. The deciduous teeth began to grow at infants aged 6-7 months and in the age about two years and a half have the total teeth of 20. Simultaneously the children's diet also transits from the fluid, the semi-fluid to solid food. The come out of the whole deciduous teeth long enables the children to absorb more and more widely foods, to satisfy the needs of the fast growth of the cerebrum. Moreover frequently chewing can promote the circulation of the forehead blood, causes the metabolism of the cerebrum to be more exuberant. The moment of the sprouting of the deciduous teeth, is also the time for the infant to learn to talk, and the very time for the beginning of the development of the second signal system of the cerebrum, the deciduous teeth plays the role of assistant pronunciation. Therefore, the deciduous teeth are very important to the early development of the children. The protection of the teeth should start with the protection of the deciduous teeth, but how to do?
1．The vigorous and healthy tooth is the foundation to resist the dental caries
The enamel’s calcification of the deciduous teeth lasts from the 4th month of pregnant to one year after the birth of the baby, and from the birth to 8 years for the permanent teeth; provide more mineral substance like calcium, phosphorus to the mother and the baby will be benefit for the development of the deciduous teeth and the permanent teeth.
2．Pay attention to the protection of the primary teeth
The enamel has not developed well as the coming out of the primary teeth, without good protection, it is easy to have caries. If take effective way of bushing the teeth, clean the bacteria and calculus in the mouth, control the baby not to take too much sugar, 1～2 years later, the enamel’s calcification will be over, the teeth will be more hard, and the capacity to resist the caries would be stronger
3．Pay attention to display the chewing function of the deciduous teeth
The normal chewing function plays an important role of stimulating physical development of the maxillofacial, parents should pay attention to displaying the chewing function from the child’s deciduous teeth, give children food has the certain degree of hardness and should be chewed for some time to enhance the chewing training, this will be good to the health of the children’s teeth and maxillofacial. 
