At what age do children start having their teeth replaced?

In general, there are characteristic tooth eruption times, but it is not immediately necessary to treat if teeth develop a little later or earlier than the textbook, because every child develops differently.

The first permanent tooth that breaks through is the 6-year molar. The first molar represents the beginning of the development of the permanent teeth.
With 6 and 7 years the incisors break through.
Between the ages of 8 and 9, nothing visible usually happens.
During this period the roots of the teeth of the second phase of tooth development form underneath the gums. During this time they are prepared for the breakthrough.
Between 10 and 11 years, the remaining teeth are then added until the second phase of tooth development is completed with the second molar, the 12-year molar. In many cases, the tooth development is already completed.
From about 16 years of age, wisdom teeth may erupt, but they do not need to be in place and often have no space, or are misaligned and therefore cannot come out of the gums. If all teeth are fully developed, it is advisable to take a panoramic x-ray of the teeth in order to clarify whether there are wisdom teeth, whether they have enough space and whether they may have to be extracted.

Sequence of tooth replacement

The change from milk teeth to permanent teeth can be divided into 2 sections. The first permanent tooth that breaks through is the 6-year molar, or the first molar. The central and lateral incisors follow.

The front teeth of the lower jaw are usually somewhat faster than the teeth in the upper jaw, which was already visible in the development of the milk teeth and is repeated in the permanent teeth. This group of teeth characterizes the first phase of the tooth change. In the second phase follow the canines, premolars and finally the 12-year-old molars, or back molars.

Between the first and second phase of tooth development there are usually 2-3 years, during which the roots of the teeth of the second phase develop completely until they can break through. The last teeth to break through are the wisdom teeth, which are not present in all people. Many people are missing them partially or completely, as they often do not develop at all in evolutionary terms, as they are no longer needed in today’s food intake.This topic might also be of interest to you: Wisdom Tooth Breakthrough