【优卡丹】
孩子在换牙期间都存在这样或那样的小困惑，家长们也会为此比较担忧。孩子换牙期间会出现哪些常见事项，以及需要注意的事项呢？
乳牙从6岁左右起陆续发生生理脱落，到12岁前后全部为恒牙所代替。有些孩子恒牙虽已萌出，乳牙却常常不肯“让位”，形成“双层牙”，造成恒牙排列不整齐，这种情况需要到医院口腔科找医生拔掉乳牙。而引起乳牙滞留迟脱的原因很多，最常见的是孩子进食过于精细，没有充分发挥牙齿的生理性刺激。因此，随着孩子年龄增长，应让孩子多吃些海蜇、花生、甘蔗等耐嚼食物，以保持对乳牙良好的刺激作用，促使乳牙按时脱落。
换牙期孩子活泼好动，很容易在奔跑、打闹中发生碰撞，导致上前牙牙折或者完落。而刚萌出的恒牙，牙根尚未完全形成，这个时期如受到外伤及感染，牙根根尖部发炎，根尖也就不能再闭合，治疗起来十分麻烦。所以，在这个时期，家长更要注意，不要使孩子牙齿受到损伤，刚换好的恒牙万一发生外伤后脱落，一定要保留孩子的恒牙，将其泡在牛奶或清水中带到医院，可以牙齿再植、固定。
有些家长发现孩子新长出的两颗门牙之间出现了较大空隙影响美观，就担心孩子的门牙长不好。大多数孩子只要侧切牙萌出后，前牙间隙就会自然减小或消失。极少数孩子可能是两颗门牙之间存在着多生牙，造成两颗门牙间有空隙。这可以通过检查确认是否为多生牙，确定后拔除多生牙，使间隙关闭。
儿童在换牙期，牙齿在替换，颌骨在发育，随之逐渐建立咬合关系，有时会出现暂时性的错位咬合，如轻度的拥挤排列不齐，部分孩子在牙齿的发育过程中，往往能自行调整而恢复正常。如果孩子到12岁以后牙齿排列仍然不齐可考虑找口腔正畸科医生矫治。但是孩子若出现反（牙合）也就是俗称的“地包天”，往往需要早期矫治，早期治疗花费时间短费用低，否则将影响孩子的容貌
The children are small confused this or that in the restoration period, parents will be more worried about this. What are the common items of children permanent teeth period, and the matters need to pay attention to?
Deciduous teeth from about 6 years of age, physiological decline, and around 12 years old, all replaced by permanent teeth. Although some children have permanent teeth eruption, deciduous teeth are often reluctant to "give way", the formation of "double teeth", resulting in irregular arrangement of permanent teeth, this situation needs to go to the hospital department of Stomatology to find a doctor to remove deciduous teeth. There are many reasons for the late retention of deciduous teeth. The most common is that children eat too fine, and do not give full play to the physiological stimulation of the teeth. Therefore, as children grow older, children should be allowed to eat more jellyfish, peanuts, sugar cane and other chewy food, in order to maintain a good stimulating effect on the deciduous teeth, so that deciduous teeth on time to fall off.
Permanent teeth of children lively, easy to run and play in the collision, resulting in conclusion fold or fall off completely. However, the permanent teeth have not fully formed yet. At this stage, such as trauma and infection, the root tip of the root is inflamed and the tip of the root can not be closed again. It is very troublesome to treat. So, at this time, parents should pay more attention to children, do not damage teeth, just for good teeth in case of traumatic loss, be sure to keep the child's permanent teeth, the bubble brought to the hospital in milk or water, can be fixed, tooth replantation.
Some parents find that there is a big gap between the two new front teeth that grow out of their children, which affects their appearance, and worries that their front teeth will not grow well. Most children will naturally become smaller or disappear as long as the lateral incisors erupt. Very few children may have multiple teeth between the two front teeth, causing gaps between the two front teeth. This can be done by checking to see if it is a supernumerary tooth. Then remove the supernumerary teeth and close the gap.
The children in the permanent teeth, teeth in the jaw replaced, in the development, gradually establish the occlusal relationship, sometimes malocclusion temporarily, such as crowded arrangement mild uneven development process in the tooth part of children, often can adjust themselves back to normal. If the child is 12 years old, the arrangement of teeth is still not uniform, you can consider orthodontic treatment. But if the child anti (occlusal) also known as the "day", often need to early treatment, early treatment to spend a short time and low cost, otherwise it will affect the child's appearance