儿童换牙期的知识汇总(附换牙顺序图)（Children Huanya period summary of knowledge (report for sequence diagram)）.docVIP

儿童换牙期的知识汇总(附换牙顺序图)（Children Huanya period summary of knowledge (report for sequence diagram)） Children Huanya period summary of knowledge (report for sequence diagram) Time and order a \ tooth Teeth are two times longer in life, namely, deciduous teeth and permanent teeth. Teeth 20, usually 6 months or so adorable, 2-3 years old Long Qi, permanent 28-32 (the number of teeth 0-4), usually around the age of 6 began to grow, long Qi 28 (12-13 years old, then change teeth teeth It differs from man to man.) is usually during 6-12 years old baby. For there are certain rules, is simply a certain time, a certain order, symmetry, after the first, after the first is symmetrical for the same teeth. The physiological loss of the first baby tooth occurs mostly around the age of 6, but there is no need to worry as early as the age of 4 or later than 7-8 years of age. The natural shedding of deciduous teeth without root, shedding is eroded, parents should observe, dont confuse with broken teeth roots. The first baby grow permanent teeth in the end is what, there are two kinds of argument, one is that the first molars usually grow around the age of 6 is close to the last molars long out, called six years earlier than the molars, or under the central incisor adorable out. Another idea is to first change the baby is down right in the middle of the two front teeth, I asked the dentist, he said every baby may be different. My baby is two six year old first molar long, most located inside the bottom teeth, each about a lot. These two permanent teeth are not replaced, that is, there is no corresponding deciduous teeth. Then, when the baby was 7-8 years old, she had upper central incisors and lower incisors, 8-9 year old upper incisors, 9-12 years long, first, second bicuspid teeth, and 10-12 year long permanent teeth. The common problems during the two \ teeth and its solution 1. Retention of primary teeth If the babys permanent teeth have erupted, the baby teeth will not give way to fal