why milk teeth in children are replaced by permanent teeth?
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Teeth form under the gum before they erupt. Eventually, 20 primary teeth are replaced by 32 permanent teeth. The primary molars are replaced by permanent premolars and the permanent molars come in behind the primary teeth.
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yadavbittu2003:
sorry
you are just passing time
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what
in which class you are?
class 10
in which school
D.A.V FERTILISER PUBLIC SCHOOL
me Christian boarding school
wlcm yadavbittu2003
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