when does baby teeth come in?

when does baby teeth come in?

when does baby teeth come in?

Generally, babies start to grow teeth when they are 6 months old. Sometimes they smile when they see them. Two small teeth are exposed on or underneath. They are pointed and very cute. So, what is the normal sequence for baby teething?

The correct order for baby teething

6-8 months: Two middle incisors grow from the lower alveolar, followed by two incisors from the upper alveolar.
8-12 months: The two outer incisors of the upper alveolar grow out, and then the two outer incisors of the lower alveolar have gums.
12-16 months: The first deciduous molars appear in the upper and lower alveolar.
16-20 months: Canine teeth grow in the upper and lower alveolar one after another.
20-30 months: The two second deciduous molars of the lower alveolar and the two second deciduous molars of the upper alveolar are grown. At this point, the 20 deciduous teeth are all grown.

The baby starts teething from 6 months old. By the age of 2 and a half, the deciduous teeth will appear almost completely, with 20 deciduous teeth.

The above is the normal sequence for baby teething.the order of teething of a baby is related to genetics and nutrition. Usually, the baby is teething in order, but it is not rare that the order of teething is reversed. As long as the quality of the teeth is good, it does not matter if the order of teething is disordered.

Symptoms of teething

Generally speaking, babies start to grow their first teeth at about seven months old, but the tips of their teeth may be seen slightly when they are three months old; some have to be delayed until they are twelve months old. . The speed of teething is genetically affected, so if the husband and wife grow teeth very early when they are young, the baby is probably the same. The signs of teething will appear about two or three months before you can actually see the teeth appearing. These signs vary from person to person, but generally there are not the following:


Babies start to drool from about ten weeks to three or four months old, and teething will especially stimulate the secretion of saliva.

A rash on the chin or face. The baby's chin and facial skin may be allergic to rash due to long-term contact with saliva. To avoid this phenomenon, you should often wipe the baby's saliva. When the skin appears dry, you might as well apply a mild lotion to moisturize it.

Mild cough:

Excessive saliva can cause nausea or cough in the baby. As long as it's not a cold or allergy, it doesn't matter.

Nibble. A baby with teething may bite at the sight of people (or things) - from his own hand to the mother's nipple, or even the fingers of a stranger - it is nothing more than trying to relieve the pressure of teeth under the gums through the force of the bite .


Inflammation is the only way for the gentle gum fibers to deal with the approaching teeth. It can cause severe pain for some babies, and no feeling at all for some babies. Especially when the first tooth and molars grow, it is most uncomfortable (but the molars will grow after about one year old).


As the tip of the tooth gets closer to the top of the gum, the inflammation becomes more serious, and the constant pain makes the baby become irritable.
Refuse to eat. Teething babies often become impetuous during feeding. He may be eager to suck milk because he wants to push something into his mouth, but once he starts sucking, his gums will ache because of the sucking action, so he doesn't seem interested in sucking. Babies who have already started to eat solid food will also refuse to eat solid food, so they have to rely on breast milk or formula milk to supplement their nutrition. If the baby refuses to eat is serious, he should take him to the doctor.


Some doctors agree that diarrhea is related to teething-it may be caused by swallowing too much saliva to cause loose stools; some doctors reject this. Whether it is related or not, parents should not neglect the baby's diarrhea.

Mild fever:

Fever is the same as diarrhea, and doctors hold their own opinions. However, inflammation of the gums does cause mild fever (less than 38.3 degrees C). If the fever persists for more than three days, you should still see a doctor.

Babies often stay awake all night due to uncomfortable teeth. If the baby wakes up suddenly, don't rush to coax him or feed him, and see if he can settle down by himself. This situation mostly occurs when the first tooth and molars are grown.

Bleeding gums:

Sometimes, teething can cause bleeding in the gums and form a bruising sarcoma. This is nothing to worry about, most doctors recommend that they decompose naturally. Cold compresses can reduce pain and accelerate the disappearance of internal bleeding.

Pull ears and rub cheeks:

The pain of the gums may spread along the nerves to the ears and jaws, especially when the molars are long, so the baby may scratch the ears or touch the cheeks.

What to do if the baby has a fever

A few days before the eruption of deciduous teeth, the child may have some abnormal manifestations, such as crying, increased salivation, like biting fingers and hard things, poor sleep, loss of appetite, etc., and some may also have low fever, mild diarrhea, localized The gums may be congested and swollen.

Generally speaking, when the above phenomenon lasts for 3 to 4 days, the deciduous teeth will erupt through the gums. Some children have their teeth late, which does not indicate any physical problems. The baby teeth that have just grown can not be used for food, so they can not give the child hard food, and the mother should not let the child sleep with the nipple in it.

The basal body temperature of normal children is 36.9℃~37.5℃. Generally, when the body temperature exceeds the basal body temperature by more than 1 ℃, it can be considered as fever. Among them, low fever means that the body temperature fluctuates around 38°C, and the body temperature is above 39°C during high fever. Continuous fever for more than two weeks is called long-term fever.

The above-mentioned basal body temperature refers to the rectal temperature, which is measured from the anus. Generally, the oral temperature is 0.3℃~0.5℃ lower than that, and the temperature of the armpit and neck is 0.3℃~0.5℃ lower than that of the oral cavity.

If your baby's 38.1 degrees is measured from the anus, it is considered low fever. If it is measured from the neck or underarms, the rectal temperature is about 38.7 degrees to 39.1 degrees, which is already a high fever.

The personal principle is below 38.5 degrees, do not take anti-fever medicine, take anti-fever injections, and give your baby plenty of water. Note that the ambient temperature is too high. In the hot summer, the temperature is very high, and the baby's own ability to regulate body temperature is poor. When the mother holds the baby, the heat is not easy to radiate, which increases the body temperature. But this kind of fever usually does not last too long. Put the child in a cool place, fan a little, drink some cool fruit juice, or take a warm bath for the child, the body temperature will drop to a few hours later. normal. In winter, if the indoor temperature is too high and the baby is wrapped too much, it will also increase the baby's body temperature.

If you have a high fever of 38.5 degrees or more, please ask your doctor to confirm whether it is a viral or bacterial infection, and then prescribe the right medicine.

What to pay attention to?

Teething is usually between 4 and 7 months. After more than 4 months, the baby began to drool, and the first tooth came out at this time, usually in the middle of the lower gum.

Among all the baby's physical conditions, it is important to have healthy teeth. Teeth can help the baby chew food; when he starts to learn to speak, the teeth determine his bite and pronunciation; the teeth also affect the growth of the baby's palate.

The American Academy of Family Physicians has seven suggestions on how to care for a baby who is teething.

1. Teething is generally not painful, but some babies may feel uncomfortable and irritable. You can use clean fingers or moist gauze to rub the gums in your child's mouth, which will help him; cool teething rings can also be used to relieve the child's gum discomfort when teething.

2. Be cautious when using gutta-percha. Excessive use of gutta-percha is not good for children.

3. Teething will not cause fever. If your child has a fever, you should take him to see a doctor. There may be other reasons.

4. Breastfeeding is beneficial to the baby's tooth development.

5. The baby can use the water cup when he is 6 months old, and don't give him a bottle when he is 1 year old. These are conducive to the development of his teeth.

6. Just add some water or ordinary pure milk between meals. Don't let children drink fruit juice or other beverages because there are a lot of sugar in it. If you want to drink some juice or sweetened milk for your baby, you can let your baby drink it directly during meals.

7. When the baby has his first tooth, he should brush his teeth twice a day. The most important time is before going to bed at night. Use a soft baby toothbrush to gently brush his teeth.

What to do if teeth grow slowly?

What should I do if my baby grows teeth slowly? Most babies erupt at 6-8 at the age of 1 year old, and at the age of 2 to 2 and a half years old, all babies will erupt, reaching 20. Experts remind us that during the baby’s teething period, supplementary food supplements and a balanced diet are essential for the healthy development of teeth.

The early and late teeth eruption is not an important indicator of the baby's growth and development. Generally speaking, the early or late of a child's teething is mainly determined by congenital factors.

Some children can start teething at 4 months, and some children only have their first baby teeth erupted at 10 months. The baby can check the trace elements in this way. If it is normal, the parents don't need to be overly anxious and don't abuse calcium supplements. The time of tooth eruption has a certain relationship with genetic factors, physical development and the position of tooth germ. It’s not that “the child’s eruption is considered abnormal if it erupts late or a few months early”. Generally speaking, we do not agree with this view, as long as the growth and development of the child's whole body and the maxillofacial region are normal physiology. The scope will do.

A variety of mineral salts are needed during tooth development, such as calcium, phosphorus, magnesium, fluorine and vitamins. If a pregnant woman’s dietary intake of mineral salts is insufficient, it will result in a lack of vitamin D in the pregnant woman’s body, which will affect the development of fetal tooth germs and make the baby Teething is delayed, therefore, pregnant women should eat more green vegetables and soy products, and often bask in the sun.
If the baby is born with insufficient sunlight, the ultraviolet rays in the sun can promote the conversion of a substance called 7-dehydrocholesterol in human skin into vitamin D, and vitamin D is an essential substance to promote the development of bones and teeth. Malnutrition is often caused by Caused by improper feeding, such as simply feeding milk and rice cereals to the baby, and not adding complementary foods on time, it is easy to cause vitamin D deficiency and severe malnutrition in the baby's body.

The time and speed of baby teething is one of the signs that reflect the baby's growth and hair status, and it is related to heredity, climate, lifestyle, physical fitness and other aspects.

Every parent is worried about whether his baby is developing normally, so it is inevitable that his baby will be compared with other people's babies. Even children of the same age, the baby's physique is different and the natural development is different. To make a very simple analogy, girls will have menarche, but coming early and late all depends on the person's physique.

There is no other impact. It's the same with babies. Some children will leave before one year old, and some children can't walk stable until one and a half years old; some children start to grow teeth at 5 months, and some children do not grow teeth for a long time. These are the most normal during the baby's long process. Don't worry too much!


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