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Deciduous dentition

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The set of primary or deciduous teeth that includes two incisors, one cuspid and two molars in each (of the four) mouth quadrant(s).


In humans there are two dentitions, the primary (or deciduous) and secondary (or permanent). In humans, the deciduous dentition starts to erupt around six months of age and all (i.e. twenty) teeth erupt by the age of three years. The deciduous teeth will eventually be replaced by a set of permanent teeth called permanent dentition.

Synonym: primary dentition

Compare: secondary dentition, mixed dentition