What is an interchangeable bite?
The loss of baby teeth and the appearance of permanent teeth is an important time for a child. Babies look forward to this moment to receive the long-awaited gift from the Tooth Fairy. And parents cherish every tooth that has fallen out. At this time, the child’s bite changes, as the permanent teeth take turns with the baby teeth. Let’s figure out how this happens together.
A child has 20 teeth in a milk bite. Usually, by the age of three, they have all erupted.
By the age of six, these teeth gradually begin to fall out and are replaced by permanent teeth.
During this transitional period, when the dentition consists of baby teeth and permanent teeth, the child has an interchangeable bite.
Periods of an alternate bite
- Early replacement bite.
It is formed from 6 to 9 years of age.
During this time native incisors should normally erupt.
After the last baby teeth appear first permanent molars or as they are called, “sixes.”
- Late replacement bite.
A child has 20 teeth in a deciduous bite.
Usually, by the age of three, they have all erupted. By the age of six.
These teeth will gradually fall out and be replaced by permanent teeth. During this transition period, when the dentition consists of baby teeth and permanent teeth, the child will have a changeable bite.
This stage begins at age 10 and lasts 2-4 years. At this time the remaining teeth – premolars and canines. At the end of the dentition, the second molars, or “sevens” grow.
During the alternate bite, the jaws are actively growing and the permanent bite begins to form. It is therefore important to observe the sequence in which your child’s teeth change.
Peculiarities of the alternate bite
This stage begins at age 10 and lasts 2-4 years. At this time the remaining teeth – premolars and canines. At the end of the dentition, the second molars grow, or “By the age of five or six”
Two important processes begin in the child’s body – the loss of milk teeth and the eruption of permanent teeth. This happens as follows.
The roots of the deciduous incisors, which begin to dissolve in the child at age 4 or 5, gradually disappear. These teeth do not sit as firmly in the hole as they used to, begin to wobble, and soon fall out.
At the same time, the rudiments (follicles) of the permanent teeth develop more and more rapidly and move to the hole through the bone tissue. If the bite is correct, these teeth do not come into contact with the deciduous teeth.
These teeth do not come into contact with the deciduous teeth and soon replace them. This is how the baby’s incisors change into permanent teeth.
At this point, the child begins the process of forming a permanent bite, which takes place in two stages.
The time interval between the loss of a baby tooth and the full eruption of a permanent tooth can be very long.
This is due to the developmental characteristics of each child.
Timing of eruption of permanent teeth
- First molars – 5-7 years
- Central incisors – 5-8 years
- Lateral incisors – 6-8 years
- First premolars – 9-13 years
- Fangs – 9-14 years of age
- Second premolars – 10-14 years
- Second molars – 11-14 years
- Third molars – 18-20 years and older
Replacement bite problems
Permanent teeth erupt in the same sequence as baby teeth. First comes the tooth on the lower jaw, and then its antagonist on the upper jaw. But in the order and timing of eruption, there may be deviations from the normal.
The most common one is delayed teething. In this case, it is especially important to seek help from a dentist and have an x-ray examination to find out why the permanent tooth has not erupted. Possible causes:
- Genetic predisposition
- The tooth is underdeveloped and retained in the jaw
- No permanent tooth embryo
- The tooth is misplaced in the bone (retained)
The eruption can also be delayed because of a baby tooth whose root has not resorbed. Such a unit stands in place and interferes with the permanent tooth. As a result, it can injure itself
The permanent tooth can get hurt against the root of a baby tooth or erupt next to it.
on the gum or palate, for example. Extraction of a baby tooth and treatment by an orthodontist with a trainer or bracket system may help to correct the bite in this situation.
The change from temporary to permanent teeth is an important step in a child’s life. A beautiful smile and a correct permanent dentition are not only hereditary But also the correct and regular care of your child’s teeth. An irregular bite in a child is a cause for another preventive checkup at the orthodontic dentist. A visit to the dentist will not take long, but it will help to make sure that the teeth are changing correctly.
Still, have questions? Ask us.
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