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Sagot :
Explanation:
- These are the first teeth to erupt into the oral cavity. The primary dentition is comprised of 20 teeth. Often these teeth are referred to as deciduous teeth.
- These teeth will be exfoliated (lost) as the permanent teeth erupt.Primary teeth, also known as our milk teeth or deciduous teeth erupts first at the age of 6 to 7 months old and would usually completely erupt by around the age of 3, in time for a child's facial bone and jaw to grow. Permanent teeth start replacing the primary teeth at about 6 to 7 years old.
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