When does a normal child get teeth? What causes late teething in children?

At what age does a baby start teething? If teething occurs late, what causes it?

Thank you for your question. I am senior manager, pharmacist Yuanyuan. Let’s talk about it in detail next. 1. When does a child teeth?

The growth of a baby's teeth is closely related to chewing power. The development of each tooth is usually divided into a growth period, a calcification period and an eruption period. We can judge the baby's skeletal development through teeth.

If the teeth erupt in time, the quality of the teeth will be good, indicating that the baby will develop better. On the contrary, if the teeth erupt are delayed, the quality of the teeth will be slightly worse.

1 The order of eruption of deciduous teeth

When the baby is born, there are already spores of deciduous teeth in the jaw, but they have not erupted. By the time 4 to 6 months old, the deciduous teeth will Slowly and gradually erupt, until the age of 2 and a half, all 20 teeth will appear.

When deciduous teeth erupt, the sequence is generally downward first, then upward, symmetrically from front to back. Due to individual differences, the eruption time will also vary.

2 Method for estimating deciduous teeth

Many parents are not sure about the status of their baby’s teeth, so here is a way for parents to estimate whether their baby’s number of teeth is normal. , that is, subtract 4 or 6 from the baby's age in months, which is the number of deciduous teeth in general.

For example, an 11-month-old baby should have 5 or 7 deciduous teeth, and by 1 year old (12 months), the number of deciduous teeth should be 6 to 8.

In fact, the eruption of deciduous teeth and the developmental status of the teeth are an important indicator of the baby's growth and development. So what factors delay the eruption of the baby's teeth? 2. Reasons for children’s late teething

If a baby’s teeth erupt late, parents will worry about whether their growth and development are delayed, but they do not know what the cause is. Generally speaking, the main reasons for late teething in babies are as follows

1. Insufficient nutrition of pregnant women

Some studies have shown that late teething in babies is related to the mother’s nutrition during pregnancy. If nutrients are deficient, it will affect the formation and calcification process of fetal tooth matrix.

During pregnancy and lactation, mothers can follow the following dietary guidelines to ensure adequate nutrition.

2 Baby’s birth season

According to a paper by a dentist, the baby’s birth season is related to the sooner or later teeth erupt. They believe that babies born in spring and summer have a lower eruption rate of deciduous teeth. It is higher than that of babies born in autumn and winter.

3 Types of supplementary food additions

1) Calcium and phosphorus Calcium and phosphorus, two trace elements, play an important role in the growth and development of babies. Calcium is an important component in forming bones and teeth, and phosphorus is also an important material in bones and teeth. For babies, the recommended daily calcium intake for young children between 1 and 3 years old is 600 mg. The appropriate daily intake of phosphorus is 300 to 350 mg.

2) Vitamin D

In addition to calcium and phosphorus, vitamin D also plays an important role in the development of teeth. If the baby is deficient in vitamin D, it will cause rickets.

The baby’s daily vitamin D intake should not exceed 400IU (i.e. 10 micrograms per day). If the daily intake is greater than 2000IU, excessive calcium deposition will occur and mild poisoning will occur. , such as thirst, vomiting, dry stool or diarrhea, which may even affect intellectual development in severe cases.

There are very few dietary sources of vitamin D, which mainly rely on ultraviolet rays from the sun to irradiate the skin. Children between 1 and 3 years old are particularly prone to vitamin D deficiency.

Do you know about when children’s teeth erupt and why they erupt late? If you have more parenting confusion, please leave a message and we will discuss it together.