1.3 Primary Dentition

Question 1

Mn and Mx eruption order

Answer 1

12-435

Question 2

first primary tooth

Answer 2

Mn CI (8 mo)

Question 3

last primary tooth

Answer 3

Mx #5 (29 mo)

Question 4

by 12 mo, which teeth are present

Answer 4

CIs and LIs (Mn and Mx)
(8 teeth total)

Question 5

both Mn and Mx canines erupt by when?

Answer 5

20 mo

Question 6

both Mn and Mx #4 erupt by when?

Answer 6

16 mo

Question 7

Mn #5 erupts by ___
Mx #5 erupts by ___

Answer 7

27 mo
29 mo

Question 8

primary teeth are ___ (color)

Answer 8

whiter

Question 9

MUDL

Answer 9

mesial upper
distal lower
(primate space)

Question 10

no interdental spacing, crowding in the permanent dentition ___%

Answer 10

75%

Question 11

Mn teeth erupt ___ to primary

Answer 11

lingual (arch length lost)

Question 12

Mx teeth erupt ___ to primary

Answer 12

labial (arch length gained)

Question 13

crowding in primary = crowding in permanent ___%

Answer 13

100%

Question 14

no significant change in arch size after eruption (T/F)

Answer 14

true

Question 15

___ dentition has less variability in occlusal relations, as dentoalveolar compensations are not fully expressed

Answer 15

primary

Question 16

the primary upper canine is positioned between what 2 teeth?

Answer 16

lower canine and lower first molar

Question 17

___ = sagital overbite

Answer 17

overjet

Question 18

E space

Answer 18

1.2 mm upper
2.9 mm lower