Second tooth

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noun, plural: second teeth

Any of the second and final set of teeth that replaces the deciduous teeth of mammals and humans.


In adult humans, there are 32 permanent teeth consisting of:

The second set of teeth begins to emerge between 5 and 7 years of age. The teeth have all or fully emerged between 17 and 23 years of age, when the wisdom teeth appear.


Compare: deciduous tooth
See also: permanent dentition