NBCSN Nationally Certified School Nurse Practice Exam 2025 - Free School Nurse Certification Practice Questions and Study Guide

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At what age do kids generally start losing their primary teeth?

Age 4

Age 6

Children typically begin losing their primary teeth around the age of 6. This process marks the transition from primary (or baby) teeth to permanent teeth and is often accompanied by the eruption of the first permanent molars. The timing can vary slightly for individual children, with some beginning as early as age 5 or as late as age 7. However, the average age for the loss of the first primary tooth aligns closely with around 6 years old, making it the most established benchmark.

This development is a normal part of childhood growth and is typically completed by the age of 12 or 13, when most children have fully transitioned to their permanent dentition. The other ages listed don't align with the commonly accepted timeline of teeth development, as they occur either earlier or later than the typical onset of primary tooth loss.

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Age 8

Age 10

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