Question

The primary dentition in human differs from permanent dentition in not having one of the following type of teeth:

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

Answer 1

The correct option is C Premolars

Primary Dentition is the first teeth to erupt into the oral cavity. It is made up of central incisors, lateral incisors, canines, first molars, and secondary molars.

Permanent teeth are what replaces the primary teeth and remain throughout. All of the teeth are replaced with identical sets, except first and secondary molars, they are replaced by premolars.

Starting at the midline, the permanent dentition is comprised of incisors, canines, premolars and molars. The primary dentition is the same except it has no premolars. The primary dentition is made up of central incisors, lateral incisors, canines, first molars, and secondary molars; there is one in each quadrant, making a total of four of each tooth.

All of these are gradually replaced with a permanent counterpart except for the primary first and second molars; they are replaced by premolars.

Therefore premolars are the point of difference.