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There are two groups of items. Match the items in group 1 with the items in group 2.

Group 1:
Maxillary first molar
Maxillary second molar
Maxillary third molar
Mandibular first molar
Mandibular second molar
Mandibular third molar

Group 2:
2.5 - 3 years
2.5 - 3 years
8 - 10 years

Birth
Birth
7 - 9 years