• The time that the first teeth appear in a child’s mouth may vary from child to child
• Between 6 to 10 months, the first tooth will usually appear
• The lower teeth come through before the upper teeth
• At about age 2 to 3, all 20 primary teeth will have come through
• At about age 6, the first permanent molar and the lower central teeth will come through
• At about age 12 to 13, most children have all 28 permanent teeth
• The wisdom teeth usually come through between the age of 17 to 21

Primary Teeth Eruption Chart:

http://www.ada.org/sections/publicResources/pdfs/chart_eruption_primary.pdf

Permanent Teeth Eruption Chart:

http://www.ada.org/sections/publicResources/pdfs/chart_eruption_perm.pdf