Mixed dentition stage

Permanent teeth start to erupt when we are about 6 years old. Deciduous teeth will gradually wobble and fall out. All deciduous teeth will be replaced by permanent teeth before we are 12 to 13 years old. This transition period is called the mixed dentition stage.

There are 32 permanent teeth and they are more yellowish than deciduous teeth.

Photograph showing the position of permanent central incisor, lateral incisor, canine, first premolar, second premolar, first molar, second molar and third molar.
Permanent Teeth Eruption Time
Central Incisor 6 to 8 years
Lateral Incisor 6.5 to 9 years
Canine 8.5 to 12.5 years
First Premolar 8 to 12 years
Second Premolar 8.5 to 13 years
First Molar 5 to 7 years
Second Molar 10 to 14 years
Third Molar (Wisdom tooth) 17 to 25 years