Question

Dental formula of human baby is

• A. $\frac{2}{2}\frac{1}{1}\frac{2}{2}\frac{3}{3}$
• B. $\frac{1}{0}\frac{1}{1}\frac{2}{2}\frac{3}{3}$
• C. $\frac{2}{2}\frac{1}{1}\frac{0}{0}\frac{2}{2}$
• D. $\frac{2}{1}\frac{0}{1}\frac{2}{0}\frac{3}{1}$

Answer 1

The correct option is C $\frac{2}{2}\frac{1}{1}\frac{0}{0}\frac{2}{2}$

The set of teeth which is deciduous is called milk teeth. This type of teeth is seen in children. Whereas the teeth that grow after the shedding of the milk teeth are called the permanent teeth. The human adult has a set of permanent teeth. There are 4 kinds of teeth- incisors, canines, premolars and molars. Incisors are usually specialised for cutting. Canines lie immediately behind the incisors and are also used for cutting the food. Premolars and molars are called cheek teeth which are broad and strong. The milk or deciduous or temporary teeth are 20 in number; 10 each in the upper jaw and in the lower jaw. The milk teeth begin to erupt when the child is about 6 months old and usually should all be present by the end of 24 months. Milk teeth of humans include 8 incisors, 4 canines, 0 premolars and 8 molars. Arrangement of the teeth in each half of the upper and lower jaw in the order incisors (I), canines (C) , premolars (P) and molars (M) is represented by a dental formula which in human babies is