State two differences between milk teeth and permanent teeth.
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As humans, we have two sets of teeth that erupt during our lifetime – the first set is called as milk teeth, primary teeth or baby teeth and they start erupting when we are 6 months old and the next set of teeth, called permanent teeth, begin erupting as we turn 6 years old.
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Answer:
Milk teeth is temporary and 20 in number
Permanent teeth is permanent and 32 in number
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