The Completion of the Root for the Permanent Maxillary Central

question 11

Multiple Choice

The completion of the root for the permanent maxillary central incisor occurs at age _____ years.

• A) 6
• B) 7 to 8
• C) 10
• D) 12

---

Definitions:

Symmetric

A characteristic of shapes, equations, or other entities that remain unchanged when reflected, rotated, or transformed in specific ways.

Tails

The ends of a distribution curve, referring to the extreme values far from the mean in a probability distribution.

Mean

The arithmetic average of a set of numbers, calculated by dividing the sum of the values by the number of values.

Variance

A measure of how much values in a dataset differ from the mean, indicating the distribution's spread.