Diseases, endocrinologists. MRI
Site search

What kind of teeth do children have that are permanent from birth? What are "shark teeth"? Number and name of teeth

All parents are looking forward to seeing their children. This event is often turned into little holiday, since the child receives a gift from a “fairy” or “mouse”.

Children who are prepared for the change of baby teeth expect this with no less curiosity. There is a certain sequence in which baby teeth fall out and when they are replaced by molars. In order for the latter to remain healthy longer, it is important to adhere to proper hygiene and teach the child to take care of the oral cavity.

Correct order of teeth falling out

The replacement of baby teeth begins at approximately six years of age and lasts until twelve. As a rule, by the age of fourteen a child should have a full arsenal of 28 permanent teeth. There are only 20 baby teeth, all of which will be replaced with new, stronger ones. Below we will take a closer look at which baby teeth change and when this happens. For ease of understanding, a visual table is presented on the right.

Diagram of baby teeth loss

At six or seven years old, the first teeth begin to loosen. As a rule, these are the central lower incisors. At seven or eight, the lateral incisors fall out. The age of 9-11 years is accompanied by the loss of the first molars. Fangs begin to change at an average age of 10-12 years. At the same time, the child should lose his second molars.

It is worth noting that the lower canines and molars change earlier than the upper ones. Since the upper canines are one of the last to grow, when the jaw row is practically formed, they often do not have enough space, they grow unevenly, displace others, and lie on top. It is the canines that cause most orthodontic problems.

The initial stage of changing teeth may be accompanied by pain, but in most cases it is painless and without the participation of a dentist. Many parents and children look forward to new teeth and begin to get scared if the molars do not come out immediately after the baby ones fall out.

The incisors may be absent for up to a year, the rest for up to one and a half to two years. This normal condition, no need to worry. If these periods are exceeded, it is recommended to consult a dentist. He will take a photo and find out the reason, which may be lack of space in the row.

It is worth mentioning that the process of loss of central incisors is often accompanied by the growth of the first molars. Second molars appear much later, at 11-13 years of age. The growth process is completed by wisdom teeth, which can erupt at any age.

Oral care during the period of changing baby teeth

Of great importance when changing baby teeth is proper hygiene oral cavity. New teeth are not as strong as those of adults, since their protective layer has not yet fully formed. It is for this reason that it is important to brush your teeth twice a day. Children prefer to avoid hygiene procedures, so at first it is necessary to help them, teach them to use a brush, a tongue spatula. The use of dental floss and rinses is encouraged.

One more necessary measure before the approaching change of teeth is complete. Caries localized in baby teeth can also spread to newly growing ones. As noted earlier, young molars have weak enamel, so they are susceptible to carious lesions.

In most cases, the process of tooth loss is painless, as the root gradually dissolves, the tooth loses stability and falls out. Since the gums are still loose during this period severe pain not observed during eruption. But in in rare cases the child may complain about her.

It is necessary to monitor the teething process and carry out antiseptic procedures. To numb the gums and normalize the microflora, use the same gels as when teething, for example, or Kalgel.

Another important circumstance is monitoring the correct formation of teeth in a row. At the slightest sign displacement of permanent teeth must be addressed. While teeth are growing, you can influence the beauty of your future smile from the outside.

Since the enamel of permanent teeth is not sufficiently mineralized at first, you can consult a dentist. He will carry out the appropriate procedures and strengthen the protective layer. In addition to this, when changing teeth, the child should eat properly, focusing on the following food groups:

  • calcium-rich dairy products;
  • fresh herbs, vegetables and fruits;
  • fish.

The replacement of baby teeth with permanent ones is not just a process expected by everyone, it is an important period in which protective property enamels. From how much good nutrition In a child, whether the child has proper oral hygiene depends on what his teeth will be like in the future and whether he will be prone to numerous dental problems.

FAQ

Parents often have controversial issues regarding the change of baby teeth. This is often caused by the presence of diseased teeth, which you want to quickly replace with strong, healthy ones. In this regard, we can succinctly summarize important information concerning milk and molar teeth.

Are all baby teeth replaced by permanent teeth?

Yes all. The process of changing teeth is quite long, but they will be replaced by permanent ones. In addition, at least four more molars will be added to them. The entire process of tooth growth should be completed by the age of 12-14 years. The remaining four wisdom teeth may grow throughout your life or may not grow at all.

The photo shows the change of teeth in a child

How many baby teeth do children lose?

Children lose 20 baby teeth: eight incisors, four canines and eight molars. They differ significantly from permanent ones, as they are less bumpy. In addition, baby teeth have wider roots, since they are a protective block for the developing permanent ones.

Which teeth fall out first?

The first to fall out are the central incisors, and they can fall out both above and below; more often, the lower ones begin to fall out. Then - lateral incisors, canines and molars. The latter after the change are called premolars. In general, the pattern of tooth loss and growth is approximately the same as during the eruption of milk teeth.

An orthodontist will talk about how children's teeth change in this video.

The baby, who has only recently been born, is growing rapidly day after day. They grow along with him... And when the first anniversary comes - 5 years, the distance between the child’s teeth should increase. This period is typical for the replacement of baby teeth with permanent ones in children.

A baby has only 20 teeth, while an adult has 28 to 32. To make room for everyone else, the jaw needs to be prepared. Parents need to monitor the condition of their pet's oral cavity. If such a distance does not appear, it is better to consult a specialist.

Changing baby teeth to permanent ones

Signs that a child is beginning to lose baby teeth

Before permanent teeth appear, the beginning of an interesting physiological process is noted - the independent resorption of temporary teeth. During this period, the child’s first teeth begin to loosen and fall out - the change of milk teeth begins.

Permanent teeth originate in the areas between the deciduous roots. Resorption starts at this point where the root adheres to the rudiments of permanent teeth.

Resorption occurs in a place such as the root tip. Then it slowly moves to the base. When it approaches the neck, prolapse occurs.

To make room for permanent owners of the oral cavity, all milk is completely removed by about 14 years of age. This is not a definite date, as individual differences are possible.

When do baby teeth start to change?

The process of shedding and eruption occurs simultaneously, since they are very connected. The appearance of teeth occurs in the same sequence as their loss in the sequence presented:

  • Incisors;
  • First and second premolars;
  • Fangs.

The growth of the first molars begins much earlier than the growth of the primary molars. And the appearance of second molars occurs in place, which were released when the jaw began to grow rapidly.

Another name for third molars is “wisdom teeth.” Many people are not familiar with this phenomenon at all. Sometimes problems begin when they erupt.

Changing baby teeth in children - timing

As already mentioned, at the age of 5, teeth begin to loosen. This means that parents must be prepared for the fact that they will soon change. The change of baby teeth in children is indicated in the table.

The formation of the jaw depends on how long the baby has been breastfed. Also important is the genotype and history of previous infectious diseases. Much also depends on how the pregnancy proceeded and what diseases it was accompanied by.

Individuality of the shift process

Parents should have no reason to worry if the real indicators of the process of hair loss in their child differ from those indicated in the table. There may be earlier or later indicators. The norm is considered to be between 4 and 8 years of age.. It is more important that the sequence is not broken.

In accordance with the “spatial balance”, the concept of which was created by pediatric dentistry, the role of providing space for permanent teeth has to be performed by temporary ones. The latter have a significant impact on the location of constants in the mouth. Therefore, they must remain until the appearance of indigenous representatives.

How to prepare for the change of milk and the appearance of permanent ones?

To ensure that the child’s oral cavity is always in order and the eruption of permanent teeth occurs without problems, it is important to ensure compliance with hygiene standards. In a new sample that has appeared, the enamel is in the process of formation and mineralization occurs. For this reason, it needs to be taken care of.

Using a toothpaste that contains fluoride will be an excellent response to the appearance of a tooth. Also, the orthodontist may prescribe the use of a special complex of vitamins that will provide support to the body during this important period.

Late change of baby teeth in a child - reasons

This process is individual for each child. But if it has not started before the age of 8, you should definitely consult a specialist. The reason for this may be the unformation or death of the permanent rudiment.

The reasons why a child’s baby teeth change late can be the following:

  • Diseases that carry infectious nature and expressed in a child in a chronic form;
  • A number of features that are associated with poor heredity;
  • The phenomena of dyspepsia in chronic form;
  • Phenylketonuria.

How long will it take for it to fall out?

The moment when the first one falls out and until the last one falls out can take up to 8 years. The figure depends on several points:

  • Bad heredity;
  • Diseases;
  • Poor quality water and food.

Changing baby teeth to permanent ones. Scheme

Teething problems

The process about which we're talking about in the article, is physiologically normal. But the usual course of this physiological process may be disrupted by the appearance of problems:

  • Discomfort and pain;
  • "Shark" teeth.

So, when the roots of baby teeth dissolve, they are pushed out by permanent teeth, and then loss occurs. In this process, failures may occur in the form of:

  • The appearance of the permanent before the loss of the temporary;
  • The appearance of a whole series of incisors, like those of a shark;

In practice, it has been proven that the influence of “shark incisors” on permanent ones is not observed. After the milk has fallen out, the permanent one is displaced, which in turn takes its place.

There are several reasons for this deviation, they are presented as:

  • Delayed eruption (retention), which can be partial (the lower part is located inside the gum and after the crown has erupted), or complete (the formed tooth is still inside the gum);
  • Absence of a tooth - this occurs due to the death of the rudiments. The phenomenon of complete adentia is considered an atypical situation; it occurs very rarely, and the reason for this condition may also lie in the nature of the pregnancy.

The process of changing baby teeth in children, the timing of which is determined individually in each case, should be monitored by specialists. They will be able to promptly eliminate problems and correct the situation for the successful development of normal teeth.


Shark cutters

Do baby teeth need to be treated?

Caries is quite common in preschool and younger children school age. To prevent it, caring parents should great attention take preventative measures.

Very often, parents are interested in why it is necessary to treat baby teeth if they are going to fall out anyway. It should be noted that caries is a disease and therefore requires treatment. If left untreated, undesirable consequences may occur:

  • Early removal, which will lead to disruption of the formation of a permanent bite;
  • Chewing disorders, which will also lead to diseases of the gastrointestinal tract;
  • Pulpitis and periodontitis, which can cause purulent inflammation in the head area - abscesses and phlegmons.

The first visit to the dentist should occur by the age of one year when the first baby teeth began to appear. The replacement of baby teeth with permanent teeth should be carried out under the supervision of specialists. At the first appointment, the doctor will be able to:

  • Talk to parents;
  • Provide recommendations for caring for the child’s oral cavity;
  • Adjust your diet.

The dentist schedules the next visit depending on the clinical situation.

If the first visit occurs at the age of 3-4 years, it is important to properly prepare children for this visit. Have a conversation with your baby about how the doctor will look at his mouth and clean it if necessary.

Big positive example Served by parents and older children. The baby should get comfortable in the office, get to know the doctor and the environment. The appointment time must be chosen based on individual characteristics child: for some, morning hours are more suitable, and for others, evening hours.

IMPORTANT: If the child is allergic, parents should take care in advance to conduct allergy tests for anesthetics and other drugs used in dental practice. Half an hour before your appointment, it is advisable to take an antihistamine drug.

If caries is detected during the appointment and the child shows psychological readiness for treatment, caries can be treated with special tips, which are used to treat the tooth cavity and place a filling. If the tooth is severely damaged, the doctor may recommend the installation of special dental metal crowns. They are placed on chewing teeth and allow them to be preserved until children switch from dairy to permanent ones.

Conclusion

A baby's teeth begin to appear when he is not even one year old. Some children are born with teeth, which pleases and surprises their parents. Before moms and dads have time to get enough of it and get enough of teething, the children switch from milk to permanent ones. It is also necessary to prepare for this process, study the pattern and timing of eruption, and a description of changes in the oral cavity.

Supported by qualified specialists the formation of a permanent bite can occur as smoothly as possible.

The loss of baby teeth is an important period in a child’s life, because it is at this time that he/she grows permanent teeth, that is, those with whom he will have to live his whole life. For this reason, parents are interested in the question: do all baby teeth change in babies and what do you need to know about this process?

Eruption and loss of baby teeth

The formation of the rudiments of baby teeth occurs during the period of gestation, approximately in the fifth month of pregnancy. They begin to erupt at the age of 4-6 months (later in some children), and by the age of three, babies already have a full set of teeth - 20 pieces. In their structure, milk teeth differ from permanent teeth - their roots are slightly wider, since under them there are the rudiments of permanent roots.

It is also quite difficult to name the exact timing of when - usually the process begins at 6-7 years and lasts for 6-9 years. There are a number of factors that influence this process, including:

  • genetic predisposition;
  • quality of food and water;
  • state immune system;
  • the nature of the diseases suffered;
  • region of residence.

Thus, in healthy children who live in regions with high quality drinking water, permanent teeth grow faster, the replacement process is much easier. In general, fourteen-year-old adolescents have all permanent teeth, but the chewing apparatus is considered fully formed only by the age of 20. It should be noted that these dates are very average - a deviation from the dates by 1-2 years is considered the norm.

The order of changing teeth

The replacement of baby teeth with permanent ones occurs in approximately the same order as eruption, but here, too, deviations are possible, which are considered a variant of the norm. Usually, the child's lower incisors fall out first, followed by the upper incisors. Over the next few years, the baby loses the lower incisors, which grow on the sides of the jaw, and then the upper ones. Starting from the age of seven, the upper and lower molars fall out, then the canines come in the same order, and the last to fall out are the large molars. In some children, the canines and large molars switch places, meaning the canines are the last to fall out.

Table. Approximate age at which baby teeth fall out.

There is an opinion that absolutely all baby teeth fall out and change in babies, but in fact this is not entirely true. The structure of a child’s jaw differs from that of an adult’s – while babies have only 20 teeth, an adult has 32. The first permanent teeth that appear in a child are molars, or sixes. They erupt after the age of four behind the second primary molars and simply stand in line with the primary teeth.

The so-called children's teeth that should fall out are the lateral incisors, two pairs of molars, a pair of premolars, and canines. In addition, the child will grow 4 more extra teeth(second molars are sevens), that is, at the end of the process of loss there will be 28 of them. Lower teeth, as a rule, grow faster than the upper ones - an exception may be premolars. Eights - or wisdom teeth - grow already in adulthood, and in some people they remain in their infancy.

As in the case of baby teeth, the order and timing of the appearance of permanent teeth are individual and depend on a number of factors. But there is one here too important nuance– too rapid loss of baby teeth can lead to permanent teeth growing crookedly, causing the child’s bite to deteriorate.

Table. Approximate age of appearance of permanent teeth.

What is the process of changing teeth?

The process of changing teeth human body laid down at the genetic level - twenty teeth are enough for small children to chew food well. After the age of five, the period begins active growth, the jaw enlarges, gaps appear between the baby teeth, which are subsequently filled with permanent teeth.

Unlike teething, the process of changing baby teeth to permanent teeth does not cause discomfort to the child. The roots simply dissolve, after which the teeth fall out under the pressure of their “brothers” growing from below. The peculiarity of newly grown permanent teeth is that they do not have a fully formed root - this takes about three years.

Despite the fact that in most cases the process does not require outside intervention, parents should keep it under strict control. Once a week it is necessary to examine the child’s oral cavity - from about the age of five, the baby’s teeth seem to thin out, and subsequently begin to become loose. Having noticed this phenomenon, you can begin to gradually loosen your teeth so that they come out of the gums more easily.

  1. If a loose tooth begins to interfere, you can pull it out yourself. To do this, wrap it in a piece of sterile gauze, gently swing it to the sides and pull it up. You should not use too much force, otherwise you may harm your baby. serious injury. If the tooth does not give in, it is better to leave it alone for a while or consult a dentist.

  2. Sometimes baby teeth sit firmly in the gums and interfere with the growth of permanent teeth - in this case, it is recommended to consult a doctor who will remove the tooth. If this is not done in a timely manner, the permanent tooth may grow incorrectly or “stand out” from the general row, causing the child’s bite to deteriorate.
  3. Many parents are faced with the phenomenon of caries of baby teeth. The decision to treat the disease should be made exclusively by a specialist (sometimes such a procedure is simply impractical). It is necessary to remember that after filling baby teeth, their roots dissolve much more slowly.

  4. If after a tooth falls out of the wound there's blood coming out, you should clamp the wound with a clean piece of bandage or cotton wool and hold for several minutes. For two hours after the loss, it is better to avoid eating food, especially cold, hot, sour and salty foods.
  5. You can rinse your mouth after tooth loss, but not too actively - a blood clot, which protects it from germs.
  6. If changing teeth causes discomfort to the child, you can buy a special toothpaste, which eliminates unpleasant sensations.

  7. During the period of changing teeth, it is important to pay attention to caries and other dental diseases. If a baby tooth is affected by caries, there is a risk that its permanent “brother” will also be sick. In addition, the child’s diet at this time should be balanced and contain a sufficient amount of vitamins and microelements, especially vitamin D and calcium. It is better to limit the amount of sugar and sweets so as not to create an environment favorable for the growth of bacteria. To cleanse and strengthen teeth, you can give your child hard fruits and vegetables, such as apples or carrots.
  8. To protect your child's permanent teeth from negative impact, you should contact a dentist who will perform fluoridation of teeth or fissure sealing (protection of areas that are in hard-to-reach places).
  9. Even if the process of changing teeth goes easily and without discomfort, the child should visit the doctor at least once every six months - this will help identify dental caries. early stages, and also prevent its occurrence.
  10. If a permanent tooth does not appear in the place of the milk tooth within 3-4 months, parents should consult a dentist. The reason for this may be rare pathology called adentia - absence of tooth buds. If the examination indicates this diagnosis, prosthetics will be necessary to maintain a beautiful bite and facial shape.

    Oral care when changing teeth

    During the period of change from baby teeth to permanent teeth, care oral cavity plays a special role, since in soft tissues wounds form that can become infected. To avoid gum infection and inflammatory process, the child should rinse his mouth after every meal. For these purposes, you can buy special solutions at the pharmacy (for example,) or prepare a decoction of chamomile, sage, or oak bark.

    To care for your teeth, you should use not only a brush and toothpaste, but also dental floss, dental brush and other dental devices. At proper care In the oral cavity, changing baby teeth will be absolutely painless, and permanent teeth will not become a source of problems for parents and the child.

    Video - Stages of changing baby teeth to permanent ones

  • When to start cleaning
  • Dropout pattern
  • Which teeth change
  • By the age of 2-2.5 years, most children have erupted all twenty baby teeth. After this, parents will have a quiet period when no changes occur in the child’s oral cavity. But after a few years they begin to wobble and fall out one by one, making room for the original ones. How exactly does this process occur and what is important for parents to take into account during the physiological change of teeth in children?


    During the period of changing teeth, it is important to monitor the correct formation of the baby’s bite.

    How many change from dairy to indigenous?

    All milk teeth, of which there are twenty, normally fall out so that in their place permanent teeth appear, which, due to their strong long roots called indigenous. At the same time, more permanent teeth erupt than there were milk teeth, since babies have an additional 2 pairs of chewing teeth. As a result, in childhood Instead of 20 milk teeth, 28 permanent teeth erupt.

    There should be 32 molars in total, but the last four may begin to erupt later, and in some people they do not appear at all, remaining as rudiments in the gums.


    Scheme: which ones and at what age change to permanent ones?

    1. The beginning of the shift is noted in most children at 5-6 years of age, when a child cuts his first molars. Because of their location in the dentition, they are called the “sixth tooth.” At the same time, from the age of 5, resorption of the roots of the primary incisors begins, a little later - the roots of the lateral incisors, and at 6-7 years - the roots of the first molars. This is a long process, taking on average 2 years.
    2. At 6-8 years old, children change their central incisors. First, a pair located on the lower jaw falls out, after which, on average, at 6-7 years, permanent incisors appear in their place, which differ large size and the presence of a wavy edge. A little later, the central incisors located on the upper jaw. Average term eruption of permanent teeth in their place - 7-8 years.
    3. Next comes the period of changing the lateral incisors. On average, they fall out at 7-8 years of age - first on the upper jaw, and then on the lower jaw. Next, the lower pair of permanent lateral incisors begins to erupt, and at the age of 8-9 years, similar teeth appear on the upper jaw. Also, at the age of 7-8 years, the process of resorption of the roots of second molars and canines begins, which lasts on average 3 years.
    4. The next to change are the “fours”. They are called first molars, but after they fall out, which on average occurs at 9-11 years of age, teeth “peck” in their place, which are called permanent first premolars. The first molars fall out first on the upper jaw, and then the turn of the lower teeth comes. However, permanent teeth are in no hurry to erupt in their place, giving way to fangs.
    5. At the age of 9-12 years, children lose their primary canines– first the upper ones, popularly called “ eye teeth", and then the lower ones. Permanent fangs begin to cut at the age of 9. Such teeth appear first on the lower jaw at the age of 9-10 years, and at the age of 10-11 years the upper permanent canines also erupt.

      At the age of 10 to 12 years, the child’s first premolars simultaneously erupt(fourth permanent teeth) and the second molars (fifth milk teeth) fall out, after which the second premolars (fifth permanent teeth) are cut. The last four baby teeth fall out first on the lower jaw and then on the upper jaw. After this, only the permanent teeth remain in the child’s mouth. The lower permanent “fours” appear on average at 10-11 years, and in the period from 10 to 12 years, premolars (the fourth and fifth pairs of teeth) in the upper jaw are cut. At 11-12 years old they are supplemented by the lower pair of second premolars.

      The last to be cut in childhood (on average from 11 to 13 years) are the second molars., called "sevens". At the age of 11-12 they appear on the lower jaw, and at the age of 12-13 the upper “sevens” also appear.

      Third molars, also called “eights” or “wisdom teeth,” appear later than all other teeth. This is often observed over the age of 17 years.


    Sometimes molar premolars erupt when baby teeth have not yet fallen out

    For a dialogue with S. Serbina, a pediatric orthodontist, watch the video below:

    Until how many years do they change?

    The change of teeth in children lasts quite a long time, starting at 5-6 years. For some children it is completed before adolescence, but in most cases By the age of 16-17, only 28 permanent teeth have erupted. Wisdom teeth erupt much later.

    Are there those that don't change?

    If we are talking about baby teeth, then they are all replaced by permanent ones. Some parents consider the chewing teeth, which are the last to erupt in the child (“fours” and “fives”), to be permanent and think that they will not change. However, this is not the case, and the fourth and fifth milk teeth on each side of the jaw should fall out in all children, and in their place permanent teeth appear, which are called “premolars”.


    All the baby's milk teeth will definitely be replaced by molars.

    Do molars change in children?

    Since molars are permanent teeth that erupt in children to replace milk teeth, then Normally they should not fall out. They remain with the children for the rest of their lives.

    Oral hygiene during shift

    While a child's teeth are changing, it is very important to carefully and regularly care for the oral cavity, since The enamel of new teeth is weakly mineralized and vulnerable to negative external influences.

    The child should brush them twice a day with an age-appropriate toothbrush and the right toothpaste. It is also recommended to use special rinses and dental floss.


    Oral hygiene should be a mandatory procedure in the morning and before bed

    • In order for the teeth that erupt to replace milk teeth to be strong and healthy, it is important to pay attention to the child’s diet in this period. The menu should contain enough foods that contain calcium and vitamin D. It is important to give your child solid foods, such as apples or carrots, so that the teeth are cleaned and strengthened naturally while chewing.
    • You should not worry that by the age of 5-6 years, gaps have appeared between baby teeth. This is normal because the molars are larger and the child's jaw is growing to accommodate them. On the contrary, if there are no gaps by this age, the child should be taken to the dentist.
    • Remember that the most common problem is tooth decay. Its occurrence is determined by various factors, among which hygiene and nutrition play an important role. Try to limit sweet foods on your child’s menu and regularly go to the doctor with your child to identify this disease in the early stages, when it is not necessary to drill and fill teeth.


    Protecting the baby from overuse sweets, you will keep his teeth healthy

    • As a rule, permanent teeth erupt without pronounced painful sensations. If the child is worried about pain, you can use an anesthetic gel used for teething, but it is best to take your son or daughter to the doctor and make sure that the teething process is going well.
    • If a tooth is very loose, it can be pulled out at home. To do this, grab it with a piece of sterile gauze, shake it to the sides and pull it down or up. If it does not respond, postpone the procedure or take your baby to the doctor.
    • Since the enamel of newly erupted teeth is not strong enough, The first permanent teeth to appear are often affected by caries.“Sixes” are susceptible to this not only because of early teething, but also because of the presence of fissures - depressions on the chewing surface, from which it is difficult to remove plaque. For protection, a procedure called fissure sealing is often used. If you want to perform it on your child, take your child to the dentist as soon as the chewing surface of the sixth teeth is completely free from the gums.

    By the age of 9, the child’s upper and lower incisors and first permanent molars erupt in the child’s dentition. The dentition still contains primary canines and molars. The permanent incisors are normally positioned evenly in the dentition without “protrusion” or “sagging” to the side.

    By the age of 10, the process of formation of the roots of permanent teeth that have already erupted in the oral cavity (first molar, central and lateral incisors) is completed. These teeth are “stabilized” in the bone tissue.

    At 9 - 10 years old, the roots of the 4th baby tooth(1st primary molar) and its replacement with the 4th permanent tooth (1st premolar) first on the upper, and then on lower jaws. From 10 to 12 years of age, the roots of the 5th primary tooth (2nd primary molar) and primary canine begin to be reabsorbed and replaced by the 2nd premolar and permanent canine, respectively. The permanent canine is the last one to erupt.

    By the age of 12-13, the replacement of baby teeth with permanent teeth is completed. There should be 24 teeth in the dentition: 12 on each jaw.

    The child is 9 years old: his upper and lower permanent central and lateral incisors and first molars have erupted. The milk chewing teeth and fangs are still motionless, although the resorption of their roots has already begun.

    Typical problems.

    NORMALLY, the permanent incisors are located “evenly” in the dentition without “protrusion” or “sagging” to the side. This indicates a harmoniously occurring process of physiological replacement of milk teeth with permanent ones.

    If there has been early removal of baby teeth in children and, as a result, permanent chewing teeth are displaced forward, improper closure of the dentition occurs and crowding of teeth appears in the area of ​​the frontal and chewing teeth.

    A common problem in the period from 9 to 12 years is poor oral hygiene, which is associated with the characteristics of psychological development children. As a result, caries develops in “young” permanent teeth. Most often, the 6th chewing teeth (1st molars) are affected in the area of ​​fissures (natural depressions of the teeth located between the cusps of the tooth).

    Fissure caries, remaining unnoticed, develops rapidly and is quickly complicated by inflammation of the nerve of the tooth (pulpitis).

    PHOTO: The child's lower permanent incisors erupted in the second row. In this situation, it is necessary to free up space by removing mobile baby teeth so that permanent teeth can take up space. correct position in the dental arch.

    Treatment and prevention.

    At the age of 9 - 12 years, “stabilization” and a decrease in the intensity of jaw growth occurs. Previously formed anomalies in the development of occlusion are “fixed.” By the age of 12, when there are no baby teeth left, orthodontic treatment in most cases (but not always) it is possible only with braces

    IN CHILDREN WHO HAVE ORTHODONTIC TREATMENT STARTED AT AN EARLIER AGE AND WAS USING ORTHODONTIC PLATES AND TRAINERS TO CREATE SPACE IN THE TEETH, TREATMENT WITH BRACKETS PROCESSES QUICKLY AND WITHOUT REMOVAL OF PERMANENT TEETH .

    BRACES CANNOT INCREASE THE SIZE OF THE JAW, SO IN ORDER TO “STRAIGHT” THE TEETH BY “PUSHING” THEM INTO THE AVAILABLE SPACE, IT IS OFTEN NECESSARY TO REMOVE THE PERMANENT TEETH.

    THIS IS WHY ORTHODONTIC TREATMENT, IF NECESSARY, IS BETTER TO START AS EARLY AS POSSIBLE.

    To prevent the development of caries of chewing teeth in the fissure area, a procedure called fissure sealing is performed - closing the fissures in order to prevent further plaque from getting stuck in them and the development of caries in them.

    For prevention sports injury For upper incisors and canines, it is recommended that a customized sports mouth guard be made by a pediatric orthodontist.