Which one is correct regarding the number of teeth and dental formula with reference to a child of age between 4 to 6 years?
a)		b)		c)		d)

(a)

Dentition in human is diphyodont, heterodont and teeth are arranged in socket of jaw bone, i.e., thecodont. Diphyodont means that teeth appears in two set during their life. A set of milky or temporary or deciduous teeth, which are replaced by permanent teeth between 6-12 of age. These milky teeth in human child includes 8 incisors, 4 canines and 8 molars (PM are absent). So, the dental formula of a child between the age of 4-6 years is