How many teeth are present in each arch of the deciduous dentition?

In the deciduous dentition, there are 20 teeth in total, with 10 teeth present in each arch (upper and lower). Each arch consists of the same types of teeth: central incisors, lateral incisors, canines, and molars, leading to a balanced number in both arches.

The upper arch includes the central incisors, lateral incisors, canines, and two molars on each side, equaling a total of 10 teeth. The same applies to the lower arch, making it consistent across the entire deciduous set.

This structure is significant because it supports the processes of chewing and speech in children until they transition to their permanent dentition, where they will have a different number and type of teeth. Understanding the makeup of the deciduous teeth is crucial in pediatric dentistry and preparing for various dental treatments as children grow.