After the child is born, about 6 months, the baby teeth begin to erupt, until about 2 and a half years old, all 20 baby teeth erupt.

Wait until 6-7 years old to 12-13 years old, permanent teeth gradually replace the baby teeth, 12-13 years old, all permanent teeth in the mouth.

After the permanent teeth are complete, there are normally 28 to 32 teeth, which are called permanent central incisor teeth, permanent lateral incisor teeth, permanent cusp teeth, first premolar teeth, second premolar teeth, and first, second, and third molars.

Normal permanent teeth are the last set of teeth in life, if the permanent teeth fall out due to various reasons, there will be no new teeth replacement, so the protection of permanent teeth is more important.

How are the teeth changed?

Tooth replacement can be divided into two simple processes: loosening of baby teeth and eruption of permanent teeth.

The new tooth at the bottom begins to grow upward, the root of the baby tooth to be replaced begins to absorb, and the tooth gradually loosens until it shakes freely and falls out.

At this time, be sure to pay attention to cleanliness, because food stays here, which can lead to gingivitis.

Parents should remind their little baby that in the process of tooth replacement, try not to lick with the tongue or break with the fingers.

What are the characteristics of young permanent teeth?

1. The shape is serrated.
2. No baby teeth white or even yellow.
3. Large incisors.
4. Young permanent teeth have thin teeth, low salinity, less wear, deep pits and trenches, and are more troublesome to clean, so it is easy to suffer from caries.
5. If caries are present, decay can progress rapidly, so prevention of caries is very important for new permanent teeth.

What do you need to pay attention to when replacing teeth?

Observe the growth

1. Retention or premature loss of baby teeth

Baby teeth retention, easy to lead to “double row of teeth”, early loss of baby teeth, easy to lead to dislocation of permanent teeth eruption.

2, permanent tooth eruption difficulty

Periapical lesions, trauma, premature loss and retention of deciduous teeth should be considered.

3. Deformed teeth

Timely treatment of malocclusion malformations that affect normal tooth eruption and dentition development.

Self-oral care during dental replacement

Parents should help their babies brush their teeth.

Children as young as two will voluntarily ask themselves to brush their teeth, but parents should understand that at this age, children’s fine motor skills have not yet formed, and they can not really brush their teeth.

Therefore, parents should not only guide their children to brush their teeth independently, once every morning and night, but also help their children clean the gaps between their teeth after their children brush.

Watch one’s diet

Children should eat more food with high fiber and certain hardness during tooth replacement, promote the timely loss of milk teeth, and also help to affect the facial and eye muscle movement through chewing movement, and promote the development of gums, jaws and facial bones.

One more thing to keep in mind:

Don’t eat sweets before going to bed at night, don’t drink sweetened milk, drinks, because the bacteria in the mouth are most active when people are asleep.

Change bad oral habits

· Correct bad habits

During the tooth replacement period, when the baby teeth are loose and about to fall out, children are often used to licking the loose teeth with their tongue, which is a bad habit that will affect the normal eruption of permanent teeth and should be corrected in time.

· Protect “sixth age teeth”

What is “sixth-age teeth”?

The first molar is the earliest tooth eruption in the permanent teeth, about 6 years old, known as the “sixth age teeth”. The first permanent molar erupts directly from the gums behind the deciduous dentition and does not replace any deciduous teeth.

There are four sixth-age teeth, one on each side, all called “sixth-age teeth”.

Sixth-age teeth are permanent teeth that are no longer replaced, and will accompany the child for life, because there is no deciduous tooth loss, and sixth-age teeth “quietly” sprout from the rear of the deciduous dentition, it is easy to be ignored by parents and children, and there is no timely and effective cleaning and protection.

Oral examination

Depending on the oral disease status of the child, an oral examination is recommended every 3-6 months.