How many teeth is normal for a nine-month-old baby

There is an old saying that a baby's changes are very obvious, and he may even look different every day. Watching the baby's changes will make the elders in the family very happy. It is a very happy thing when a baby grows teeth. This is because when a baby grows teeth, mothers can add other complementary foods in addition to giving the baby daily breast milk. This can supplement the nutrients needed by the baby every day and promote the baby's healthy growth. So how many teeth should a nine-month-old baby have?

Some babies have their deciduous teeth erupt as early as two months before birth, but most babies will have their deciduous teeth erupt 6 months after birth, starting with a pair of lower deciduous central incisors; at 8 months of age, a pair of upper deciduous central incisors erupt; after that, other deciduous teeth erupt in pairs from front to back, left and right, generally symmetrically, and erupt at the same time, with the lower teeth erupting first and the upper teeth later.

At 9 months, a pair of lower lateral incisors erupt, followed by a pair of upper lateral incisors; at one year and two months, a pair of lower first deciduous molars erupt first, followed by a pair of upper first deciduous molars; at one and a half years old, a pair of lower canines erupt first, followed by a pair of upper canines; at two years old, a pair of lower second deciduous molars erupt first, followed by a pair of upper second deciduous molars. In this way, by the age of two, all 20 deciduous teeth will have come out.

The method for calculating the number of deciduous teeth is: for infants under two years old, subtract 4 to 6 from the number of months. For example, the number of deciduous teeth of a 9-month-old baby is: 9-(4~6)=5~3. A 9-month-old baby should have 3 to 5 deciduous teeth.

But not all babies have their deciduous teeth erupt so regularly. Some babies begin to have deciduous teeth erupt as early as 4 months after birth, while some babies do not start growing teeth until one year old.

Through the above introduction, we know the approximate range of how many teeth a nine-month-old baby will have. Generally, it is about three to five teeth. However, due to the different physical conditions of babies, some babies may not have grown any teeth at nine months, or may have grown seven or eight teeth. So don't worry too much about the teething of babies, and don't blindly ignore the doctor's advice to supplement calcium for your baby. Excessive calcium intake may cause harm to your baby's health.