Tooth Eruption

Question 1

What order do primary teeth erupt in?

Answer 1

ABDCE

Generally lowers first

Question 2

What teeth are present in a one year old?

Answer 2

Upper - 1, 2

Lower - 1, 2, 4

Question 3

When do primary canines erupt?

Answer 3

Lower - 16 months
Upper - 19 months
*Will have both caNINEs by NINEteen months

Question 4

What age do primary second molars erupt?

Answer 4

Lower - 20months

Upper - 24months

Question 5

At what age is the primary dentition completely erupted?

Answer 5

24 months

Question 6

How long does apexogenesis take?

Answer 6

2-3 years from tooth eruption

Question 7

What are the general rules regarding eruption of the permanent teeth?

Answer 7

Girls teeth erupt before boys
Lowers before uppers
Later eruption in overweight children is common

Question 8

What teeth erupt at age six?

Answer 8

Upper - 6

Lower - 1, 6

Question 9

What teeth erupt at age seven?

Answer 9

Upper - 1

Lower - 2

Question 10

What teeth erupt at age eight?

Answer 10

Upper - 2

Question 11

What teeth erupt at age 9?

Answer 11

Lower - 3

*lower caNINE erupts at NINE

Question 12

What teeth erupt at age 10?

Answer 12

Upper - 4, 5
Lower - 4, 5
All premolars

Question 13

What teeth erupt at age 11?

Answer 13

Upper - 3

Question 14

What is the last primary tooth to be exfoliated?

Answer 14

Upper canines

Question 15

What teeth erupt at age 12?

Answer 15

Upper - 7
Lower - 7
*Full dentition (minus wisdom teeth) now present

Question 16

What age do third molars erupt?

Answer 16

17+

It is not uncommon for no wisdom teeth to ever erupt

Question 17

What age does the first primary tooth erupt & what tooth is it?

Answer 17

6 months

Lower central incisors