The deciduous teeth of a subadult mandible are examined and shown to be completely formed, including the apex of the roots. The person represented by this jaw was at least 4 years old when he/she died.

Question

Quizplus · Accepted Answer

The fact that the deciduous teeth are completely formed, including the apex of the roots, indicates that the person was at least 4 years old. This is because the roots continue to elongate and form until the teeth are fully developed, which occurs around the age of 3-4 years old. Therefore, the statement is true.

The Deciduous Teeth of a Subadult Mandible Are Examined and Shown