Tooth replacement is a process that every child must go through. As a parent, you should closely observe the development of your child’s teeth, so that your child can successfully go through the tooth replacement period and grow a mouthful of healthy and beautiful teeth. 1, pay attention to observe the child’s teeth With the growth of children’s age, a small baby teeth have been able to adapt to the growing jawbone and the increasing chewing power. Milk teeth from the age of 6 years old from the physiological loss, to 12 years of age around all for the permanent teeth replaced. Due to the growth and development of the tooth germ in the jawbone and the movement towards the occlusal surface of the teeth, the root tissues of the milk teeth are absorbed, and the milk teeth are gradually loosened, finally resulting in the loss of the teeth. The deciduous milk tooth is without root and the deciduous surface is in the shape of a nibble. When your child’s milk teeth fall out, you should pay attention to observation in order to distinguish it from the root fracture of milk teeth. 2, as far as possible to close the child to avoid injury Some parents found that the child’s newborn permanent teeth are loose, and thus feel uneasy and suspicious. In fact, this is because just before the teeth, the roots are not yet fully formed, the pulp cavity and the apical foramen are very large, the apical part of the bone is very thin. During this period, if trauma and infection occur, the root of the tooth will become inflamed, and the apical foramen will no longer be able to close, which makes it very troublesome to treat. The age of children’s teeth is the active period, it is easy to run, play, play in the sudden collision, fall and other accidents lead to maxillofacial trauma in which the upper anterior teeth are particularly vulnerable to damage parts. So in this period parents should pay more attention to let the child to avoid injury. 3, the gap between the incisors do not have to worry about Some parents found that the new growth of children between the two incisors appeared gap, and some even presented the figure of eight, which is worried about the child’s incisors are not good. In fact, the eruption of permanent teeth is a certain time and order. The upper front center incisors (commonly known as incisors) erupt at the age of 6-9 years, and the lateral incisors at the age of 7-11 years. So at the age of 7-11 years, a gap will appear between the child’s two incisors, which will naturally disappear if you wait until the lateral incisors have erupted anteriorly. Occasionally, there may also be a gap between the two incisors caused by the presence of supernumerary teeth between the two incisors, which can be determined by X-ray radiographs to determine the removal of supernumerary teeth, so that the gap is closed. 4, “tiger teeth” can not be removed in the order of exchange of milk but teeth, cusp eruption to be later than the first double cusp, due to the cusp eruption of the anterior teeth area alveolar bone of the ground is full of other teeth, can only be partial lip side of the long, so part of the children’s cusp often protrudes to the side of the lip to form the “tiger tooth”, “tiger teeth”. So some children’s cuspids often protrude to the labial side to form “tiger’s teeth”. Some parents think this tooth is unsightly, and ask the doctor to remove it. This is wrong. Cuspid is the longest and thickest tooth in the whole mouth. Its role in tearing food can not be replaced by other teeth, if lost, often resulting in children can not “gnaw sugar cane”, “eat ribs”, also affects the chewing power. If correction is needed, the doctor will remove the first or second bicuspid teeth to achieve the purpose of correction. 5, understand the “temporary misalignment” period Finally, it is worth mentioning that the period of milk and permanent teeth replacement, the arrangement of the teeth is often mismatched, and sometimes all of them are disorganized, medically known as temporary misalignment. Some parents are very worried about this, and ask the doctor to give early orthodontic treatment. In fact, the human body teeth have the potential tendency to be aligned, in the alternation of milk and permanent teeth, the teeth arrangement has the possibility of self-adjustment, in the alternation of milk and permanent teeth is not completed before, there is no need to rush to orthodontic treatment, it should be observed and followed up, some of the children’s permanent teeth will be slowly aligned, even if the need for orthodontic treatment, it should be carried out in the completion of the alternation of milk and permanent teeth. Usually around the age of 12, when the eruption of permanent teeth has reached a certain height, the production and wearing of various orthodontic appliances can be accurate and effective.