Key words: changing teeth and front teeth in the first grade of primary school
This article applies to: the first grade of primary school.
Composition source:
This diary is about the first grade of primary school. The topic is: "Why should the front teeth be changed first?" ",welcome everyone to contribute enthusiastically.
When changing teeth, why should the front teeth be changed first?
"Mom, you help me break corn kernels! I can't chew. " My daughter begged me in a pathetic tone.
Looking at my daughter's small teeth, I couldn't help giggling while helping her break off the cooked corn cob.
"Mom, why did you lose this front tooth first?"
"... oh, well, I really didn't think ... I'll go to the office tomorrow and check these materials first. "
"Well, don't forget!" We smiled at each other and made a promise.
-August 2, 2009
At noon today, in order to find the standard answer my daughter wanted, I hurried to the office after lunch, and then searched Baidu. Search results really taught me a lot. I always thought it was normal and rare for children to change their teeth. Because there are many milestones in the process of children's growth, each one will bring surprises to parents. For example, the child's first fetal movement, first crying, first opening eyes, first laughing, first turning over, first sitting up, first climbing, first standing, first walking, first talking, first time ... are memorable moments, but there is nothing to make a fuss about and it is not worth making a fuss about. However, after reading the relevant information about tooth replacement today, I still have to make a big fuss.
▲ Answer my daughter's question first: Why did you lose your front teeth first?
Because the order of changing teeth is the same as that of primary teeth, that is to say, when the first primary tooth is born, it often
They are all front teeth, so when changing teeth, the front teeth come first.
▲ Why change your teeth?
Changing teeth is a human physiological need. With the growth of the baby's age, the small deciduous teeth can no longer grow out.
Adapting to the development of the jaw, the masticatory force increased, and the deciduous teeth began to fall off physiologically and were replaced.
Stronger permanent teeth that accompany us for almost a lifetime.
▲ Time and sequence of tooth change
People have to grow teeth twice in their life, that is, primary teeth and permanent teeth. There are 20 deciduous teeth, which usually erupt around 6 months and grow together at the age of 2-3. There are 28-32 permanent teeth (the number of wisdom teeth is 0-4), which generally begin to grow around 6 years old, and 28 permanent teeth will grow when 12- 13 (wisdom teeth vary from person to person), so the tooth changing period is generally during the baby's 6- 12 years old. There are certain rules for changing teeth. Simply put, it is "a certain time, a certain order, left and right symmetry, first down and then up", and left and right symmetry is aimed at teeth with the same name.
Most of the physiological shedding of the first deciduous teeth occurs around 6 years old, but some of them are as early as 4 years old or as late as 7-8 years old, so don't worry. Natural deciduous teeth have no roots, and their surfaces are gnawed. Parents should pay attention to observation and don't confuse it with deciduous teeth. There are two different opinions about which permanent tooth the baby grows first. One is that the first permanent molar that usually grows around 6 years old grows close to the last deciduous molar, which is called six-year-old molar, and erupts earlier or at the same time as the lower central incisor. Another way of saying it is that the baby first changed the two front teeth in the middle of the lower row. I asked the dentist, and he said that every baby may be different. My fruit is the first two six-year-old molars, which are located in the innermost part of the upper and lower rows of teeth on the left. They are very big. These two permanent teeth are not replaceable, that is to say, there are no corresponding deciduous teeth. Then, the baby has upper central incisors and lower incisors at the age of 7-8, upper incisors at the age of 8-9, first and second pairs of canines at the age of 9- 12, and permanent teeth at the age of 10- 12.
▲ Common problems and solutions in the process of tooth replacement:
1, retention of deciduous teeth
If the baby's permanent teeth have erupted, but the deciduous teeth refuse to "give way" and fall off, it is called deciduous teeth retention. There are usually two reasons for the retention of deciduous teeth. One is the congenital absence of permanent teeth (according to X-ray, the baby has no permanent teeth), which leads to the failure of deciduous teeth to fall off when they expire. If the retained deciduous teeth are not loose or decayed, other permanent teeth have a good occlusal relationship and can be retained for use, because clinical experience shows that they can still bear chewing function after adulthood. The second reason for the retention of deciduous teeth is that the eruption direction of permanent teeth is abnormal, or the eruption force is not enough, so that the root of deciduous teeth is not oppressed by the eruption of permanent teeth, so it is not absorbed or insufficiently absorbed, resulting in retention. It is generally believed that if the baby is short of calcium, or because the food he usually chews is too fine and does not give full play to the physiological stimulation of teeth, this situation is easy to occur.
Solution: The consequence of this situation is that the baby has "double rows of teeth". You should take your baby to the dentist as soon as possible, usually by pulling out the deciduous teeth.
2. Early deciduous teeth fall off
Premature deciduous teeth fall off when permanent teeth are not formed, which will affect the baby's chewing and is not conducive to the baby's digestion and absorption of food. It will also cause the adjacent teeth to shift to the gap of missing teeth, which will make the gap of missing teeth smaller, resulting in the dislocation of the corresponding permanent teeth because there is not enough space to erupt when changing teeth.
Solution: Give priority to prevention, educate your baby to care for teeth and reduce trauma through safety education. If the deciduous teeth fall off prematurely, you should go to the dentist to see if you need to wear a gap retainer.
3, deciduous permanent molar caries
During the baby's tooth replacement, deciduous teeth and permanent teeth are prone to dental caries, because deciduous teeth and permanent teeth exist at the same time, and because the molar is large and there are many pits on the occlusal surface, food residues often remain, and the baby's brushing is often not thorough enough, so it is not easy to clean the molar. Solution: Teach your baby to improve his brushing skills (brush up and down eight times), or parents can help him brush his teeth at a more important time. Dental caries can cause apical diseases and affect the growth of secondary permanent teeth, which needs to be paid great attention to. If dental caries have occurred, it is necessary to see a dentist. Even if only deciduous molars suffer from dental caries, they should be treated in time. We can't think that the replacement of primary teeth sooner or later will affect the eruption and growth of permanent teeth.
4, tooth dislocation occlusion
During the baby's tooth change, in addition to changing teeth, the jaw is also developing, and the occlusal relationship is slowly established. In the process of alternating deciduous teeth and permanent teeth, the arrangement of teeth is often not so beautiful, and there will be skew, and permanent teeth rarely reach a long position in one step. Medically, it is called temporary malocclusion, so parents don't have to worry, because human teeth are often arranged neatly, and will adjust themselves during tooth development to make the dislocation return to normal. Even if correction is needed, it is usually done after the replacement of deciduous teeth and permanent teeth. However, if there is a malocclusion in which the teeth cannot adjust themselves (this needs to be diagnosed by a dentist), it is necessary to make a diagnosis and treatment in time so as not to affect the baby's beauty.
5. There are many teeth
As the saying goes, "thief's teeth" are redundant teeth. Parents should always pay attention. If you find suspicious teeth, you should go to the dentist in time to determine whether there are any extra teeth. If the redundant teeth are not extracted in time, it will affect the eruption of normal permanent teeth.
6, incisor space
There are often gaps between the upper and lower central incisors (front teeth) that the baby grows, and some even show a figure of eight. Under normal circumstances, after the baby grows a lateral incisor, the gap will naturally disappear, so don't worry. Of course, there are also a few cases where there are extra teeth between the two front teeth, which leads to the gap between the front teeth. This should be solved by removing supernumerary teeth after X-ray examination.
7.tiger tooth
"Tiger tooth" refers to the third canine tooth in the upper jaw. Because the fourth maxillary tooth, that is, the first premolar, erupts before the canine tooth, there is not enough space when the canine tooth erupts, and it can only erupt on the lip side, just like the tiger tooth, so it is called "tiger tooth". Some parents think that "tiger teeth" are ugly and ask for them to be pulled out, which is wrong. Tiger teeth are the longest and strongest permanent teeth. It grows firmly on the chin and has a long life. It has a unique tearing effect on food. Without it, children's chewing power will be reduced, and they may not eat ribs, sugar cane and the like in the future. In addition, the position of "tiger tooth" is more important, which plays a supporting role in the face of both sides of the quarrel. Pulling out "tiger teeth" prematurely will cause the mouth to collapse and become a nut mouth like an old lady. Therefore, the "tiger tooth" cannot be easily pulled out. The first premolar can be pulled out to create a gap, and the "tiger tooth" can be pulled into the normal position of the dentition by orthodontic force to align the teeth. If correction is needed, the doctor will choose to pull out the first or second pair of fangs to achieve the purpose of correction. Parents should never treat tiger teeth without authorization just to look good. Sometimes the little tiger tooth is quite cute.
▲ Matters needing special attention when changing teeth.
& kloc-0/.Always pay attention to the growth of baby's deciduous teeth and permanent teeth, and take the baby to the dentist regularly, so as to find problems at any time and solve them as soon as possible.
& amp2; 2. Urge the baby to brush his teeth every day. It is best to brush by adults before going to bed at night, especially the double rows of teeth are difficult to clean, which is most likely to lead to dental caries. There are also six-year-old molars that are not easy to brush because they grow in the innermost part of the mouth. Choose toothpaste and toothbrush for your child, and the toothbrush head should be as small as possible, otherwise the baby will vomit easily when he gets to the innermost part. In addition to brushing your teeth, it is best for your baby to rinse his mouth after eating food every time to maintain oral hygiene.
& amp3. Babies should eat more foods with high cellulose content and certain hardness during tooth changing, such as fruits, carrots, beans and corn. In order to maintain a good stimulating effect on deciduous teeth and promote deciduous teeth to fall off on time. On the other hand, it is also helpful to influence facial and eye muscle movements through chewing exercise, accelerate blood circulation, and promote the development of gums, jaws and facial bones, which is both healthy and beautiful. I don't think this applies only to babies. I don't know if you have noticed that with the improvement of living standards, the food we eat is more and more exquisite, which is actually bad for the health of our teeth. The degeneration of wisdom teeth (also called the third molar) is an example, so we should eat hard and wear-resistant food from time to time to get proper exercise for our teeth, mouth and nearby muscles.
& amp4; MP4. Strengthen the baby's absorption of calcium, and urge the baby to eat more foods with high calcium content, such as milk, cheese, tofu, canned fish, etc. At the same time, take enough vitamins C and D, because these two vitamins contribute to the absorption of calcium.
& amp5; 5. Try to avoid breathing through the mouth when the baby sleeps (usually caused by tonsil hypertrophy's disease or nasal diseases), because when the airflow passes through the mouth, the upper jaw is pressed upward and cannot develop downward normally, resulting in the upper jaw protruding upward, the left and right sides of the upper dental arch narrowing and the front protruding forward. The incisors that caused eruption not only leaned forward, but also arranged in disorder, resulting in missing teeth.
& amp6; 6. It is necessary to correct some bad habits of the baby in time, such as spitting and biting the tongue, biting fingers or pencils, licking teeth with the tongue, etc. These bad habits can easily cause your teeth to protrude or your upper and lower teeth to bite badly, which will deform your teeth.
& amp7; 7. Specially protect the baby's first permanent molar-six-year-old molar, because it has the function of positioning and setting the height of teeth in the whole mouth, which has a great influence on the baby's maxillofacial development and also plays an important role in the eruption and orderly arrangement of other permanent teeth.
& amp8. Always educate your baby about safety and try to prevent tooth loss caused by trauma. & amp9; mp9. Tetracyclines will deposit on bones and teeth, which will make new permanent teeth yellow, so they should be banned before and during tooth replacement.
The above is the idle information I collected and sorted out, for reference only by parents of children of the same age. At the same time, I also printed a copy to warn my daughter of the consequences of licking her newborn little permanent tooth.
August 3(rd), 2009