How do teeth develop, and at what age does a child s teeth develop completely?

The process of tooth development is quite long and complex, and the teeth begin to develop and grow during the fetal period before the baby is born. Around the seventh week of pregnancy, the baby teeth begin to develop, first forming the baby tooth germ, which resembles the "germ" of the tooth. By about five months of pregnancy, the fetus has basically formed the cusps of baby teeth.

By the time of seven months of pregnancy, the fetus's primary tooth crowns will form about 1 2; By the time the baby is born, almost all of the 20 baby teeth have formed crowns.

At the same time as the baby teeth grow, the permanent teeth are also quietly brewing, and the permanent tooth germ also begins to develop gradually at four or five months of pregnancy, but the calcification of the permanent teeth mostly begins gradually after birth, and does not grow out one after another until the baby is six months old. This means that when your child is born, there are already 20 baby tooth germs and 16 permanent tooth germs in the jawbone. Although you can't see the teeth in your baby's mouth when he or she croaks to the ground, this is because they are hiding under the gums (commonly known as "gums") and have not yet erupted.

It is not until about half a year of age that the first tooth comes out from under the baby's gumbed. By the time the child is two-and-a-half to three-year-old, the child's small baby teeth (20) will be ready to grow. Therefore, the health of the mother during pregnancy will directly affect the health of the child's teeth.

Some children are born with teeth in their mouths, which are called birth teeth (commonly known as "horse teeth"). Of course, this is a rare occurrence, and the vast majority of people are born toothless.

Humans have two sets of teeth. The first group is called baby teeth (baby teeth or milk teeth) and appears about 6 months after the baby is born. Children have 20 baby teeth, which are evenly distributed in two rows.

Between the ages of 9 and 12, humans will develop a permanent set of teeth called permanent teeth or permanent teeth. Permanent teeth form under the primary teeth and are pushed out of the jawbone and replaced. The new set of teeth has a total of 32 teeth, and the jaw bone has grown up accordingly.

After the age of 12, wisdom teeth, the so-called third molar, that is, the two ends of the upper and lower rows of teeth, have a total of 4 teeth, which is often referred to as wisdom teeth. Wisdom teeth erupt most of the time. The reason for not growing out may be that the jaw is not well positioned or in some cases it is not present at all, but usually one of them is missing at most.

Since the jaws of most Caucasian and yellow people are not large enough, wisdom teeth are generally extracted in order to prevent tooth decay and inflammation caused by food storage, as well as the forced outgrowth of teeth that may cause the whole set of teeth to become crooked.

It's complicated, depending on the age you ask.

Hello, we normal people usually have two kinds of dentition, that is, baby teeth and permanent teeth. Under normal circumstances, baby teeth slowly grow from six or seven months of infancy, and from six or seven years old baby teeth slowly fall out and gradually erupt permanent teeth, generally by the age of twelve or thirteen, all the baby teeth are replaced. Girls of the same year, earlier than boys.

Now consider supplementing calcium, high-protein foods. By the age of 12 to 14 (the average age in China), all the baby teeth will be replaced. A total of 20 teeth were replaced, and the front teeth were 4 in total.

6-7 years old) upper and lower mapillary incisors, a total of 4. (Changed around 7 years old) upper and lower fangs, a total of 4. (10-13 years old) upper and lower seats, a total of 8.

9-14 years old).

Hello, the average child is six years old to be ready to replace permanent teeth, basically to the age of twelve to complete the development, but people are not the same, some people to forty or fifty years old will have wisdom teeth, but the normal situation to twelve or thirteen is basically developed, Shanxi Red Cross Dental dedicated to your service.

Six-year-old teeth are six-year-old and will not be replaced for the rest of their lives. Like you said, there's a leaky nerve. Get a root canal done at the pediatric dentistry**.

Then wait until the age when you can get the teeth inlaid and then put the porcelain teeth. Now you can't be too young to set it, and before that, you must pay attention to protect that tooth, and don't bite hard things. Once it breaks, it has to be unplugged.

Then when the child is older, he will be inlaid with three porcelain teeth with sleeves on both sides. Or get a tooth implant. I hope it helps you, and if you don't understand anything, you can ask me.

Under normal circumstances, children will have their permanent teeth replaced at the age of 10, so they will be ready to replace their permanent teeth when they are six years old.

You should go to the hospital as soon as possible to go to the dentist and correct it, so as to avoid the trouble of reprocessing the tooth after it has grown out.

Not necessarily, children are precocious now. I used to change my teeth at the age of 20.

The development of teeth requires nutrients such as protein (protein supplements, protein supplements), vitamins (vitamin A, vitamin A) and minerals (such as calcium, phosphorus, magnesium, fluoride) and minerals. Vitamin D is required for the deposition of calcium and phosphorus (vitamin D products, vitamin D information); Vitamin C deficiency (vitamin C products, vitamin C information) can cause tooth hypoplasia, alveolar bone atrophy, gums are prone to bleeding, edema, etc.; When vitamin A is deficient, the epithelial cells of the whole body appear keratosis, the growth of teeth is delayed, and the tooth dysplasia is affected, especially the development of tooth enamel, which makes the color of the teeth turn chalky. When there is a lack of fluoride in the body, the teeth are prone to decay and tooth decay occurs; However, when too much fluoride is ingested, the enamel of the teeth will appear tan markings, and it will be fragile and easy to break.

In order for the child to grow a good mouthful of baby teeth and lay a good foundation for the normal growth of permanent teeth, pregnant women (maternity products, maternity information) should pay attention to nutrition during pregnancy. Especially in the last trimester of pregnancy, the intake of calcium-containing foods and the intake of protein should be increased. Nutrition should also be taken into account after birth and throughout the childhood period (nutritional products for children and adolescents, nutrition information for children and adolescents).

Foods rich in calcium, phosphorus and vitamins A, D and C include dairy and dairy products, soy products, liver, fish, shrimp skin, eggs, fresh vegetables, fruits, etc. Children should be allowed to participate in outdoor activities frequently, and if necessary, a certain amount of vitamin A and D should be supplemented every day (such as oral cod liver oil (cod liver oil product) drops) to ensure that children have good teeth.

If the body lacks nutrients, the teeth will also change, for example, if your body lacks calcium, the internal structure of the teeth is composed of a piece of white and a transparent dark yellow from the outside, thinking that it is plaque, but in fact, when the doctor examines it, it is not at all, like this case, it is a lack of calcium that leads to unsightly tooth growth, so I give this example to tell you that you must pay attention to the body, and the lack of nutrients will not make the teeth grow unsightly or unhealthy.

The health of the body is related to every part of the body, including teeth and even nails and hair.

The development of fetal deciduous tooth germ begins from 2 months gestational age, and at 5 months gestational age, deciduous teeth begin to calcify, and at the same time, the old ulnar permanent tooth germ also begins to develop If the fetus does not get enough nutrition during the embryonic period, or the mother takes tetracycline drugs, etc., it can directly affect the growth and development of fetal teeth"Tetracycline teeth"Therefore, during pregnancy, the mother should never take tetracycline drugs and should consume more calcium-rich foods, such as milk and eggs, as well as do more outdoor activities and bask in the sun to promote the development of embryonic teeth and bones and prevent children from suffering from congenital dental diseases

The development of the tooth germ of the fetal baby tooth begins at 2 months of gestational age, and at the gestational age of 5 months, the baby teeth begin to calcify, and at the same time, the germ of the permanent tooth also begins to develop? If the fetus does not receive adequate nutrition during the embryonic period, or the mother takes tetracycline drugs, etc., it can directly affect the growth and development of fetal teeth, and it is susceptible to dental diseases after birth"Tetracycline teeth"?Therefore, during pregnancy, it is absolutely not possible to take the four-ring deficiency guess vegetarian group drugs and should consume more calcium-rich foods, such as milk?

eggs, etc., but also do more outdoor activities, more sun, to promote embryonic teeth? Bone development to prevent children from congenital dental diseases?