Permanent Posterior Teeth Dates

Question 1

Maxillary First Premolars

Answer 1

Eruption date: 10-11 years old
First evidence of calcification: 1.5 years old
Crown completion: 5-6 years old
Root completion: 12-13 years old
Erupts distal to max. canines or their arch space. Succedaneous replacements for primary maxillary first molars

Question 2

Maxillary Second Premolars

Answer 2

Eruption date: 10-12 years old
First evidence of calcification: 2 years old
Crown completion: 6-7 years old
Root completion: 12-14 years old
Erupt distal to permanent max. first premolars. Succedaneous replacements for primary max. second molars

Question 3

Mandibular First Premolars

Answer 3

Eruption date: 10-12 years old
First evidence of calcification: 1.25 - 2 years old
Crown completion: 5-6 years old
Root completion: 12-13 years old
Erupt distal to permanent mandibular canines. Succedaneous replacements for primary man. first molars

Question 4

Mandibular Second Premolars

Answer 4

Eruption date: 11-12 years old
First evidence of calcification: 2.5 years old
Crown completion: 6-7 years old
Root completion: 13-14 years old
Erupt distal to man. first premolars. Succedaneous replacements for primary man. second molars

Question 5

Maxillary First Molars

Answer 5

Eruption: 6-7 yrs old
First evidence of calcification: birth
Crown completion: 2.5-3 yrs old
Root completion: 9-10 yrs old

Question 6

Maxillary Second Molars

Answer 6

Eruption: 12-13 yrs old
First evidence of calcification: 2.5-3 yrs old
Crown completion: 7-8 yrs old
Root completion: 14-16 yrs old

Question 7

Maxillary Third Molars

Answer 7

Eruption: 17-21 yrs old
First evidence of calcification: 7-9 yrs old
Crown completion: 12-16 yrs old
Root completion: 18-25 yrs old

Question 8

Mandibular First Molars

Answer 8

Eruption: 6-7 yrs old
First evidence of calcification: birth
Crown completion: 2.5-3 yrs old
Root completion: 9-10 yrs old

Question 9

Mandibular Second Molars

Answer 9

Eruption: 11-13 yrs old
First evidence of calcification: 2.5-3 yrs old
Crown completion: 7-8 yrs old
Root completion: 14-15 yrs old

Question 10

Mandibular Third Molars

Answer 10

Eruption: 17-21 yrs old
First evidence of calcification: 8-10 yrs old
Crown completion: 12-16 yrs old
Root completion: 18-25 yrs old