Answer :
Infants have 20 deciduous teeth, whereas adults have 32 permanent teeth.
What is deciduous teeth?
Milk or deciduous teeth are the first set of a teeth grown by a child. It start growing from the gums from the age of 6months.
While permanent teeth grows in adult and usually stronger than temporary teeth.
Deciduous teeth are usually small compare to permanent teeth and it is whiter.
Permanent teeth develops through the childhood till maturity.
Therefore, infants have 20 deciduous teeth, whereas adults have 32 permanent teeth.
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