People start to change their teeth around the age of 6, why do they need to change their teeth?

Changing teeth belongs to the normal metabolism of the human body, once a person comes to this world without teeth, and then slowly grows baby teeth, because of the person's growth, the food eaten and change. Since ancient times, human beings have had two sets of teeth, one is a baby tooth that erupted when a child, and the other is a permanent tooth, and the replacement of baby teeth into permanent teeth mostly starts around the age of 7.

In the process of growth and development, there is a permanent tooth germ below the root of each deciduous tooth and gradually develops and grows, and the permanent tooth in the process of eruption, on the one hand, compresses the alveolar bone between the deciduous tooth root and the permanent tooth germ, and through the action of osteoclasts, the bone resorption is thinned until it is completely absorbed; On the other hand, it directly compresses the root of the deciduous tooth, so that the root of the deciduous tooth is gradually absorbed, becoming shorter and shorter, until it disappears completely. As a result, baby teeth begin to fall out and permanent teeth begin to erupt.

It is the second tooth after the loss of the baby tooth, and it no longer erupts after the loss. There are 32 permanent teeth in the mouth, 16 on each side. Around the age of six, the first permanent molars erupt, which is the beginning of the mixed dentition phase.

Around the age of 12, all the baby teeth are replaced by permanent teeth, and the mixed dentition period ends. There are 20 primary teeth in the deciduous dentition, so 20 of the 32 permanent teeth in the permanent dentition are secondary teeth to the primary teeth, which are used to replace the primary teeth. The remaining 12 are all large molars, which only germinate once in a lifetime, and the first large molars are also known as six-year-old teeth because most of them erupt at the age of six.

The third molars have a tendency to degenerate, some people have impacted birth or congenital loss, and the number of permanent teeth can range from 28 to 32.

In addition, when baby teeth and permanent teeth alternate, the arrangement of teeth is often intricate and sometimes even chaotic, which is medically called temporary misalignment. In this regard, some parents will be very worried and hope that the doctor will give correction as soon as possible. In fact, the human teeth have a potential tendency to align neatly, when the primary permanent teeth alternate, the tooth alignment has the possibility of self-adjustment, before the replacement of the primary permanent teeth is not completed, there is no need to rush to correct it, but should observe the follow-up medical treatment, some children's permanent teeth will be slowly aligned.

Because the teeth that grew when I was a child were baby teeth, which were very small, and the teeth that grew up after the age of 6 will become bigger, and some people grow up, the teeth become bigger, and such small teeth are of course not enough.

Tooth replacement is a normal physiological phenomenon in people and everyone will experience it.

After birth, baby teeth slowly emerge, which are relatively small and not strong. As the body grows, the human head will slowly increase in size before adulthood, but the baby teeth will not thicken. If baby teeth are not replaced, the gums will widen, there will be gaps between the teeth, and individual teeth will easily break.

When a child chews something harder, baby teeth are not suitable.

Child. At the age of five or six, baby teeth will gradually fall out.

Ten. At the age of 1 or 12, all permanent teeth are replaced.

Answer: When children reach a certain age, they will change their teeth, and at that time they will lose their baby teeth, because the permanent teeth will replace the baby teeth when they erupt, which is very normal, and now children generally change their teeth early.

Analysis: A person's life generally starts to change teeth at the age of 6 or 7 until the age of 12 or 13, and all the baby teeth are replaced by permanent teeth at the age of 12 or 13, and your daughter starts to change teeth at the age of 6 within the normal range.

Suggestions: During your daughter's tooth change, you should pay attention to the retention of permanent teeth that have erupted and the baby teeth have not fallen out, and should be extracted as soon as possible, so as not to affect the eruption of the permanent teeth in the normal position, and the permanent teeth will fall out without baby teeth, and wear a gap keeper at the gap between the baby teeth to prevent the teeth on both sides from tilting until the permanent teeth erupt, and there is also to pay attention to oral hygiene, so that the child can not often lick the loose baby teeth and so on...

Hello: It's normal to start changing your teeth at the age of six, it's normal to change your teeth in the first year of school, and most children start changing their teeth at this age.

Normally old, I remember I started in the first grade.