Question

The primary dentition in humans differs from permanent dentition in not having one of the following types of teeth:

• A. Canine
• B. Premolars
• C. Molars
• D. Incisors

Answer 1

Answer: (B)

Premolars

20 primary teeth are lost as the child grows and is replaced by 32 permanent teeth. Primary dentition comprises 8 incisors, 4 canines, and 8 molars while permanent teeth comprise 8 premolars in addition to newly formed 8 incisors, 4 canines, and 12 molars. Premolars take the place of molars present in the primary dentition.

Thus, the correct answer is option B.