Eruption Sequence

Question 1

When do Permanent Maxillary Central Incisors erupt?

Answer 1

7-8yo

Question 2

When do Permanent mandibular Central Incisors erupt?

Answer 2

6-7yo

Question 3

When do Permanent Maxillary Lateral Incisors erupt?

Answer 3

8-9yo

Question 4

When do Permanent mandibular lateral Incisors erupt?

Answer 4

7-8yo

Question 5

When do Permanent Maxillary Canines erupt?

Answer 5

11-12yo

Question 6

When do Permanent mandibular Canines erupt?

Answer 6

9-11yo

Question 7

When do Permanent Maxillary 1st Premolars erupt?

Answer 7

10-11yo

Question 8

When do Permanent Maxillary 2nd Premolars erupt?

Answer 8

10-12yo

Question 9

When do Permanent mandibular 1st Premolars erupt?

Answer 9

10-12yo

Question 10

Which 1st permanent premolar erupts first? Max or mand?

Answer 10

Maxillary 1st premolar tends to erupt prior to mandible

Question 11

When do Permanent mandibular 2nd Premolars erupt?

Answer 11

11-13yo

Question 12

When do Permanent maxillary 1st molars erupt?

Answer 12

5.5-7yo

Question 13

When do Permanent mandibular 1st molars erupt?

Answer 13

5.5-7yo (generally before maxillary 1st molars)

Question 14

When do Permanent Maxillary 2nd molars erupt?

Answer 14

12-14yo

Question 15

When do Permanent mandibular 2nd molars erupt?

Answer 15

12-14yo

Question 16

When do third molars tend to erupt? (both max and mand)

Answer 16

17-30yo (both max and mand)

Question 17

Calcification Begins: 3rd molars (different)

Answer 17

Maxilla: 7-9 yo
mandible: 8-10yo

Question 18

Calcification Begins: 2nd Permanent Molars

Answer 18

30-36mo

Question 19

Calcification Begins: 1st Permanent Molars

Answer 19

At Birth

Question 20

Calcification Begins: Canines

Answer 20

4-5mo

Question 21

Calcification Begins: 2nd Premolars

Answer 21

24-30mo
Same time as when primary first molars are completely formed

Question 22

Calcification Begins: 1st premolars

Answer 22

18-24mo

Question 23

Calcification Begins: Lateral incisors (different)

Answer 23

Maxilla: 10-12mo
mandible: 3-4mo

Question 24

Calcification Begins: Central incisors

Answer 24

3-4mo

Question 25

Crown formation (enamel) completion of: Central incisors

Answer 25

4-5yo

Question 26

Crown formation (enamel) completion of: Lateral incisors

Answer 26

4-5yo

Question 27

Crown formation (enamel) completion of: Canines

Answer 27

6-7yo

Question 28

Crown formation (enamel) completion of: 1st Premolars

Answer 28

5-6yo Before Canines

Question 29

Crown formation (enamel) completion of: 2nd Premolars

Answer 29

6-7yo Same as canines

Question 30

Crown formation (enamel) completion of: 2nd Molars

Answer 30

7-8yo After canines

Question 31

Root completion of: Central Incisors

Answer 31

9-10yo Approx 2-3years after eruption

Question 32

Root completion of: Lateral Incisors (different)

Answer 32

Maxilla 11y mandible 10y Approx 2-3years after eruption

Question 33

Root completion of: Canines

Answer 33

12-15y Approx 2-3years after eruption

Question 34

Root completion of: 1st Premolars

Answer 34

12-13yo Approx 2-3 years after eruption

Question 35

Root completion of: 2nd premolars

Answer 35

12-14yo Approx 2-3years after eruption

Question 36

Root completion of: 1st Molars

Answer 36

9-10yo Approx 2-3 years after eruption

Question 37

Root completion of: 2nd Molars

Answer 37

14-16yo Approx 2-3years after eruption

Question 38

Primary Dentition - Calcification of *all teeth* begins during

Answer 38

4th fetal month

Question 39

Primary Dentition - Formation of Central Incisors is complete at

Answer 39

18-24mo Same as lateral incisors FYI: Permanent 1st premolars start calcification at this time

Question 40

Primary Dentition - Formation of Lateral Incisors is complete at

Answer 40

18-24mo Same as lateral incisors FYI: Permanent 1st premolars start calcification at this time

Question 41

Primary Dentition - Formation of Canines is complete at

Answer 41

30-39mo This is after formation of primary first molars

Question 42

Primary Dentition - Formation of Primary 1st molars is complete at

Answer 42

24-30mo FYI: Also when Permanent 2nd premolars start calcification

Question 43

Primary Dentition - Formation of Primary 2nd molars is complete at

Answer 43

36mo

Question 44

Primary Dentition - Eruption of Central Incisors (Max & Mand)

Answer 44

Maxilla: 6-10mo Mandible: 5-8mo

Question 45

Primary Dentition - Eruption of Lateral Incisors (Max & Mand)

Answer 45

Maxilla: 8-12mo Mandible: 7-10mo

Question 46

Primary Dentition - Canines (Max & Mand)

Answer 46

16-20mo Same time, but after D's come in.

Question 47

Primary Dentition - Primary 1st molars (Max & Mand)

Answer 47

11-18mo Same time, but before C's

Question 48

Primary Dentition - Primary 2nd molars (Max & Mand)

Answer 48

20-30mon Same time Last primary tooth in the mouth

Question 49

Primary Dentition - A 2 year old at 24mon should have which teeth?

Answer 49

ABDC(E) Recall: E erupts b/w 20-30mo of age

Question 50

Primary Dentition - A 1 year old at 12 mon should have which teeth?

Answer 50

AB(C) Recall: Cs erupt at 11-18mo