ATI Nursing Care of Children Practice Exam 2026 - Free Nursing Care Practice Questions and Study Guide

The eruption of primary teeth generally finalizes by the end of preschool years, which is around 6 years of age. During the preschool years, children typically have a complete set of 20 primary teeth, as the eruption process usually begins around 6 months of age and progresses until about 3 years old. This timeframe allows for the complete development and appearance of all primary teeth.

By the end of preschool years, most children will have transitioned through various stages of teething, which includes the eruption of incisors, molars, canines, and ultimately the completion of their primary dentition. Understanding this timeline is crucial for recognizing normal dental development in children and can assist in identifying any potential issues that may arise, such as delayed eruption or other dental anomalies.