National Dental Assisting Examining Board (NDAEB) Practice Exam

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At what approximate age is the last primary tooth usually shed?

  1. 10

  2. 12

  3. 8

  4. 9

The correct answer is: 12

The last primary tooth, typically the upper canine or the second molar, is usually shed around the age of 12. This is part of the overall process of dental development, where primary teeth gradually give way to permanent teeth. While individual variations can occur, the age range for losing primary teeth generally falls between 6 and 12 years, with most children completing the transition by approximately age 12. This timing aligns with the average eruption age for permanent teeth, indicating a healthy transition from the primary dentition to the permanent dentition stage.

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