Chronology Flashcards
Eruption of lower Bs
7 months
Eruption of 8s
17 - 21 years
Crown completion of E
10 - 12 months
Calcification of lower 8s
8 - 10 years
When does root formation of adult teeth complete?
approximately 2 - 3 years after eruption
Crown completion of A
4 months
Calcification of 7s
2.5 - 3.5 years
Eruption of 6s
6 - 7 years
Eruption of Cs
16 - 20 months
Eruption of upper 3s
11 - 12 years
Eruption of upper Bs
8 months
Calcification of C
In utero; 5 months
Eruption of lower 2s
7 - 8 years
Eruption of lower 4s
10 - 12 years
Eruption of upper 5s
10 - 12 years
Eruption of upper As
7 months
Eruption of lower 5s
11 - 12 years
Crown completion of 1s & 2s
4 - 5 years
Eruption of 7s
12 - 13 years
Crown completion of 7s
7 - 8 years
Calcification of A
In utero; 3 - 4.5 months
Calcification of D
In utero; 5 months
Eruption of Es
20 - 30 months
Crown completion of B
4.5-5 months
Eruption of lower 1s
6 - 7 years
Eruption of Ds
12 - 16 months
Calcification of 1-5s
1st 2 years
When does root formation complete for deciduous teeth?
1 - 1.5 years after eruption
Calcification of 6s
Around birth or just before
Eruption of upper 4s
10 - 11 years
Eruption of lower 3s
9 - 10 years
Eruption of lower As
6 months
Calcification of E
In utero; 6 months
Crown completion of 6s
2.5 - 3 years
Crown completion of D
6 months
Calcification of upper 8s
7 - 9 years
Crown completion of 3s
6 - 7 years
Crown completion of 8s
12 - 16 years
Calcification of B
In utero; 4.5 months
Eruption of upper 1s
7 - 8 years
Crown completion of 5s
6 - 7 years
Crown completion of 4s
5 - 6 years
Crown completion of C
9 months
Eruption of upper 2s
8 - 9 years