Question

difference between primary and permanent dentition.

Answer 1

Ans- 1. Primary dentition is the first set of teeth and also called deciduous teeth or milk or baby or temporary teeth. While permanent dentition are second set of teeth also called permanent teeth.

2.Primary teeth appears first during embryo phase from 6th week of intrauterine life while first permanent teeth appears in mouth at around 6 years of age.

3. Primary teeth are 20 in number which are 2 incisors , 1 canine, and 2 molars on each upper or lower half while permanent dentition is 32bin number with 2 incisors, 1 canine, 2 premolars and 3 molars.

4. Enamel is thinner in primary teeth while thicker in permanent teeth.

5. Mineral content of primary teeth is less while more in permanent teeth.

6. Blood supply us abundant in primary teeth due to enlarged apical foramen while it is restricted and reduced in permanent teeth.

7. Primary teeth are smaller in size than permanent teeth.