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deciduous teeth

n. (plural of deciduous tooth English)

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Deciduous teeth

Deciduous teeth, otherwise known as baby teeth, temporary teeth, milk teeth, and now more commonly primary teeth, are the first set of teeth in the growth development of humans and other diphyodont mammals. They develop during the embryonic stage of development and erupt—that is, they become visible in the mouth—during infancy. They are usually lost and replaced by permanent teeth, but in the absence of permanent replacements, they can remain functional for many years.