Caninul inclusMarch 30, 2018
When should the first orthodontic check-up be done?April 22, 2018
Order and age of appearance of baby teeth and permanent teeth
The eruption of each tooth takes place at a certain age and in a certain order. There are normal variations in the age when teeth appear, depending on genetic factors, the child’s general development status, gender, certain health issues.
Milk teeth (temporary teeth)
Around the age of 6 months, the first inferior incisors appear, followed by the superior ones. The eruption may begin at 4-5 months or after 8-9 months; this does not constitute a problem. Around the age of 1, usually, 4 inferior incisors and 4 superior incisors are present.
This is followed by the eruption of the first milk molars; usually the inferior ones appear before the superior ones, between 12 and 18 months.
Canines appear between the incisors and the first molars, at 1.5 -2 years old.
The second molars are last, as they appear between the ages of 2 and 2.5.
Any variation in the eruption age that does not exceed the normal interval by more than 6 months is considered normal and does not require additional investigations.
The eruption of milk teeth may determine the occurrence of abundant salivation and gum irritation; the child inserts his/her fingers or various objects to calm the local feeling of discomfort. There are various toys, such as tooth rings, that can be cooled in the refrigerator and which help calm the child. Some anesthetic and disinfectant gels may also help.
They erupt between the age of 6 and 12, at a one year interval between them, for teeth replacing milk teeth.
The first permanent tooth that appears is the first molar, behind the milk teeth. This is a tooth that supplements the existing ones on the arches; no milk teeth are lost when it appears. It appears at the age of 6, but, in the current generations of children, who have a faster general development, it may also erupt at the age of 5.
Between 7 and 9, the incisors change, first the central ones, then, the lateral ones.This is followed by the replacement of the lateral teeth, between the ages of 9 and 12. The order may be:
- canine, first premolar, second premolar – frequently in the inferior arch;
- first premolar, canine, second premolar – frequently in the superior arch;
There are numerous normal variations in the eruption order, but around the age of 12, all milk teeth are changed. Deviations of up to one year compared to the normal eruption period, either through an early or a late appearance, are considered normal.
At the age of 12, the second permanent molars appear, and around the age of 18, the wisdom teeth.