Eruption Dates and Root Formation

Question 1

adult, upper incisors and canines

Answer 1

central = 7-8
lateral= 8-9
canine = 11-12

1st premolar = 10-11
2nd premolar = 10-12

first molar = 6-7
second molar = 12-13
third molar = 17-21

Question 2

adult, lower incisors and canine

Answer 2

central = 6-7
lateral = 7-8
canine = 9-10

1st premolar = 10-12
2nd premolar = 11-12

1st molar = 5-6
2nd molar = 12-13
3rd molar = 17-21

Question 3

paeds, upper eruption ages

Answer 3

central = 8-12 month
lateral = 9-13 month
canine = 16-22

first molar = 13-19
second molar = 25-33

Question 4

paeds, lower dentition ages

Answer 4

central = 6-10 months
lateral = 10-16 month
canine = 17-23 month

first molar = 14-18 month
second molar = 2-3 years