Ch 2 Permanent Upper: Chronology of Human Dentition Table 2-3

Question 1

First week of calcification (weeks in utero):

• I1
• I2
• C
• P1
• P2
• M1
• M2
• M3

Answer 1

• 3-4mo
• 10-12 mo
• 4-5 mo
• 1.5-1.75 yr
• 2-2.25 yr
• at birth
• 2.5-3 yr
• 7-9yr

Question 2

Crown completed (Months)

• I1
• I2
• C
• P1
• P2
• M1
• M2
• M3

Answer 2

• 4-5yr
• 4-5
• 6-7
• 5-6
• 6-7
• 5-6
• 6-7
• 2.5-3
• 7-8
• 12-16

Question 3

Eruption (Months):

• I1
• I2
• C
• P1
• P2
• M1
• M2
• M3

Answer 3

• 7-8 yr
• 8-9
• 11-12
• 10-11
• 10-12
• 6-7
• 12-13
• 17-21

Question 4

Root completed (Years)

• I1
• I2
• C
• P1
• P2
• M1
• M2
• M3

Answer 4

• 10
• 11
• 13-15
• 12-13
• 12-14
• 9-10
• 14-16
• 18-25