Dental ages (revision)

Question 1

Know the times of tooth development and eruption

Answer 1

Question 2

Additional eruption summary

Answer 2

Question 3

What dental age is shown? State main identifiers.

Answer 3

6

erupting:
md centrals
1st molars (mx & md)

root development of perm/resorption of primary roots apparent:
mx centrals
laterals (mx & md)

Question 4

What dental age is shown. State main identifiers.

Answer 4

7

erupted:
md centrals
1sts molars

erupting:
md laterals
mx centrals

root:
mx laterals

Question 5

What dental age is shown. State main identifiers.

Answer 5

8

erupting: mx laterals

perm root formation starts in: canines and premolars

primary root resorption starts in: canines and molars

Question 6

What dental age is shown. State main identifiers.

Answer 6

9-10

after mx laterals erupt, no others for next 2-3 yrs

identified by:
perm: incisors & 1st molars
but
primary: canines, 1st & 2nd molars

Question 7

Difference between dental age 9 and 10

Answer 7

amt of root resorption of primary canines & molars and root development of perm successors

i.e.
9 - 1/3 root of md canine and 1st pm complete, mx counterparts just started if at all

also

10 - completed roots of md incisors and almost complete mx laterals

Question 8

What dental age is shown. State main identifiers.

Answer 8

11

erupting:
md canine and 1st pm
mx 1st pm only

primary
mx canine and 2nd molar still present
md 2nd molar only remaining md primary

root of incisors completed

Question 9

What dental age is shown. State main identifiers.

Answer 9

remaining succedaneous perms erupt (mx canines and mx and md 2nd pms)

2nd molars nearing eruption “12 yr molars”