How is child 9 months had not grown a tooth to return a responsibility

summary

We often encounter a similar situation: some children are almost one year old, and their parents are very anxious; on the contrary, some children are just born, and their oral cavity has teeth growing, so parents are confused. The child 9 months haven't grown a tooth is how to return a responsibility? Why some children Teether later, some but especially early?

How is child 9 months had not grown a tooth to return a responsibility

First, there are two pairs of teeth in a person's life, namely deciduous teeth (a total of 20) and permanent teeth (a total of 32). There is ossified deciduous tooth germ in the baby's jaw at birth. Under normal circumstances, the baby's first deciduous tooth erupts at 6-7 months. Due to the influence of genetic and other factors, the eruption of baby's deciduous teeth is early and late, and the individual difference is large. Therefore, we will find that some babies begin to have teeth at the age of four months, and some delay to 10-12 months, which belong to the normal physiological category.

Second: when the baby is more than one year old and still has no teeth, it can be regarded as abnormal. The main reasons are as follows: first, it is related to the baby's own nutrition and health. If the baby suffers from malnutrition, rickets, silly disease and other systemic diseases, it will delay the eruption of deciduous teeth. Secondly, it is related to the nutritional status of mothers during pregnancy and lactation. We know that the growth and development of deciduous teeth begin in the embryonic period. During this period, if the pregnant mother is malnourished, it is bound to affect the growth and development of deciduous teeth; and when the mother is malnourished during lactation, it will also affect the absorption of calcium and phosphorus of the baby, resulting in delayed teething of the baby.

Third: once again, we should pay attention to a rare disease - congenital edentulism. This kind of children not only show edentulous or edentulous, but also accompanied by other organ abnormalities, such as sparse hair, dry skin, apocrine glands and so on. In addition, some oral tumors may also be harmful to teething.

matters needing attention

To sum up, the baby still has no deciduous teeth after ten months, and parents need not be too nervous. As long as the child is in good health and has no other problems, it doesn't matter if he has his first deciduous tooth when he is one year old. Pay attention to feeding, reasonable and timely add complementary food, more sun, baby's teeth will grow out naturally.