Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.

Primary dentition

From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search



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 and secondary. In humans, the primary 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 secondary dentition.

Synonym: deciduous dentition

Compare: secondary dentition, mixed dentition