Toothing | Milk tooth

Toothing

Due to the longitudinal growth of the root, the pressure against the jawbone finally causes the milk tooth to erupt. This is called first dentition. Usually the eruption of all 20 milk teeth is completed by the 30th month of life.

They are fully developed by the third year of life, while the roots continue to grow for another one or two years. As a rule, the eruption of the milk tooth occurs first in the lower jaw. The respective antagonist of the upper jaw follows in short distance.

The change of teeth is caused by the dissolution of the milk tooth root by the advancing permanent tooth. This is also created from the tenth week of development onwards as a tooth bud in the replacement tooth ridge. The second dentition usually begins around the age of six with the first molar.

  • Middle incisor: Ø breakthrough age 6 – 8 months
  • Lateral incisor: 8th – 12th
  • First milk molar: 12th – 16th
  • Canine: 16th – 20th
  • Second milk molar: 20 – 30