noun, plural: permanent teeth
In adult humans, there are 32 permanent teeth consisting of:
- 8 incisors – replacing the 8 deciduous incisors
- 4 cuspids – replacing the 4 deciduous cuspids
- 8 premolars – replacing the 8 deciduous molars
- 12 molars
In contrast to the deciduous teeth that start to form in the embryo between the sixth and eighth weeks, the permanent teeth begin to form in the twentieth week. The deciduous teeth erupt in the mouth first during infancy and will start to shed and replaced by permanent teeth by the age of 5 and 7. This final set of teeth shall fully emerge and be complete at the age of 17 and 25 years when the last of the three molars (wisdom teeth) appear.