Digestion and Absorption Question 18
18. An adolescent human below 17 years of age normally has dental formula as
[1999]
(a) $\frac{3}{3}, \frac{1}{1}, \frac{3}{2}, \frac{1}{1}$
(b) $\frac{2}{2}, \frac{1}{1}, \frac{2}{2}, \frac{3}{3}$
(c) $\frac{2}{2}, \frac{1}{1}, \frac{2}{2}, \frac{3}{3}$
(d) $\frac{2}{2}, \frac{1}{1}, \frac{2}{2}, \frac{2}{2}$
Show Answer
Answer : d
Hints & Solution
(d) The permanent teeth appear completely by the age of 12 years, except for the last molars, which, if present, are formed after the age of 18 years. The dental formula before the wisdom teeth appear would be $i \frac{2}{2}, c \frac{1}{1} ; pm \frac{2}{2}, m \frac{2}{2}$ after wisdom teeth appear $i \frac{2}{2}, c \frac{1}{1} ; pm \frac{2}{2}, m \frac{3}{3}$
