Question

Which of the following correctly represents the normal adult human dental formula?

• A. $\frac{3131}{3121}$
• B. $\frac{2133}{2123}$
• C. $\frac{2123}{2123}$
• D. $\frac{3133}{3133}$

Answer 1

The correct option is C

$\frac{2123}{2123}$

The correct option is C.

Explanation for correct option:

1. The dental formula is the way of representing the arrangement of teeth in both rows.
2. A normal adult human being has a dental formula of $\frac{2123}{2123}$.
3. The explanation of this dental formula is that there are 2 incisors, 1 canine, 2 premolars, and 3 molars in one row.
4. The dental formula represents the teeth present in each quadrant.
5. The numerator part is the teeth present in the upper quadrant and the denominator part is the teeth present in the lower quadrant.
6. Each side has 16 teeth and on both sides, there are 32 teeth in total.

Final Answer: The normal adult human dental formula is $\frac{2123}{2123}$