Deciduous Teeth Flashcards Preview

Dental Anatomy > Deciduous Teeth > Flashcards

Flashcards in Deciduous Teeth Deck (68):
1

what is the order of eruption of deciduous teeth?

  1. central incisors
  2. lateral incisors
  3. first molars
  4. canines
  5. second molars

Mandibular before maxillary

2

order of exfoliation of deciduous teeth

  1. central incisors
  2. lateral incisors
  3. first molars
  4. canines
  5. second molars

mandibular before maxillary

3

high peak of attack of caries is at about ___ years of age when there are about __% of primaries left

  • 13 years old
  • 5%

4

primary teeth are completely finished for only ___ before root resportion begins

1-2 years

5

how many primary teeth are there?

20

  • per arch:
  • 4 incisors
  • 2 canines
  • 2 molars

6

differences between primary and permanent teeth:

primary teeth are ___ in dimension

smaller

7

differences between primary and permanent teeth:

primary crowns are ___ in comparison to length than permanent

wider

8

differences between primary and permanent teeth:

roots of anterior primary teeth are ___ and ___

narrower and longer

9

differences between primary and permanent teeth:

roots of primary molars are ___ and flare more so that _____

  • longer
  • permanents can develop between them

10

differences between primary and permanent teeth:

cervical ridges of primary anteriors are ___ prominent, requiring ____

  • more
  • more care in operative work

11

differences between primary and permanent teeth:

crowns and roots of primary teeth at cervix are ___ slender

more

12

differences between primary and permanent teeth:

cervical ridges on primary molars are much more ___, especially on ___

  • pronounced
  • 1st molars

13

differences between primary and permanent teeth:

buccal and lingual surfaces of primary teeth are ___ above cervical line

flatter

14

differences between primary and permanent teeth:

primary teeth are ___ pigmented, giving a ___ appearance

  • less
  • whiter

15

describe the enamel, dentin, and pulp of deciduous teeth

  • enamel is thin with a consistent depth
  • dentin is thin
  • pulp horns are high with large pulp chambers

16

from the labial aspect, the maxillary deciduous central incisor's mesiodistal measurement is ____ than cervicoincisal length

  • greater
  • this is the opposite of permanents

17

from the labial aspect, the maxillary deciduous central incisor labial surface is ___ and the incisal edge is nearly ___

  • smooth 
  • straight

18

from the labial aspect, the maxillary deciduous central incisor's root is ___ shaped, and the sides taper ___

  • cone
  • evenly

19

from the labial aspect, the maxillary deciduous central incisor's root length is ___ in comparison to crown length

greater

20

from the labial aspect, the maxillary deciduous central incisor, the marginal ridges are ___

well developed

21

from the labial aspect, the maxillary deciduous central incisor has a highly developed ___, which extends into the concavity and divides it into ___

  • cingulum
  • fossae

22

from the labial aspect, the maxillary deciduous central incisor's root narrows ___

lingually

23

from the mesial and distal aspects, the maxillary deciduous central incisor's crown appears thicker at ____ and even on the ____

  • middle 1/3
  • incisal 1/3

24

from the mesial and distal aspects, the maxillary deciduous central incisor's cervical crown curves toward the ____

  • incisal
  • this is less than on the permanent

25

from the mesial and distal aspects, the maxillary deciduous central incisor's root shows an ___

even taper

26

from the mesial and distal aspects, the maxillary deciduous central incisor has more pronounced _____

cervical ridges

27

from the incisal aspects, the maxillary deciduous central incisor's ridge is ____ over main bulk and is ____

  • centered
  • straight

28

from the incisal aspects, the maxillary deciduous central incisor's labial surface is ___ and ___ than the lingual surface

broader and smoother

29

from the incisal aspects, the maxillary deciduous central incisor's labial surface tapers toward ____

cingulum

30

the maxillary deciduous lateral incisor is similar to the central incisor, only ___

smaller

31

the maxillary deciduous lateral incisor's cervicoincisal length is ____ than mesiodistal widtch

greater

32

the maxillary deciduous lateral incisor's root appears ___ in comparison to the crown

longer

33

from the labial view of the maxillary deciduous canine, the crown is more constricted at the ____

cervix

34

from the labial view of the maxillary deciduous canine, the mesial and distal surfaces are more ___

convex

35

from the labial view of the maxillary deciduous canine, it has a long and well developed ___

cusp

36

from the labial view of the maxillary deciduous canine, how does the crest of contour mesially compare to permanent maxillary canines?

it is not as far down as permanents

37

from the labial view of the maxillary deciduous canine, the mesial cusp slope is ___ than distal

longer

38

from the labial view of the maxillary deciduous canine, it's root is ___ and ___, and more than ___ the length of the crown

  • long and slender
  • twice

39

from the lingual view of the maxillary deciduous canine, pronounced enamel ridges ____

merge with others

40

from the lingual view of the maxillary deciduous canine, it's root tapers ____

evenly

41

describe the ridges and grooves of the maxillary deciduous canine from the lingual aspect, going from distal to mesial

  • disto marginal ridge
  • distolingual developmental groove
  • lingual ridge connecting cusp tip and cingulum
  • mesiolingual developmental groove
  • mesial marginal ridge

42

from the mesial view of the maxillary deciduous canine, the outline is similar to ____ and ____

lateral and central

43

from the mesial view of the maxillary deciduous canine, it has a ____ labiolingual measurement at the cervical 1/3

greater

44

the mesial view of the maxillary deciduous canine gives an appears of a ___

tooth on steroids

45

T or F:

the distal view of the maxillary deciduous canine is just the reverse of the mesial view

true

46

from the incisal aspect of the maxillary deciduous canine, it is ___ shaped

diamond

47

from the mesial view of the maxillary deciduous canine, the tip of the cusp is ___ to the center of the crown

distal

48

from the mesial view of the maxillary deciduous canine, the mesial slope is ___ than the distal slope

longer

49

from the labial aspect of the mandibular deciduous central incisor, the surface is flat with no ___

developmental grooves

50

from the labial aspect of the mandibular deciduous central incisor, the mesial and distal sides taper evenly from ____

contact areas

51

from the labial aspect of the mandibular deciduous central incisor, the heavy look at the root trunk gives an appearance similar to the ___

maxillary permanent lateral incisor

52

from the labial aspect of the mandibular deciduous central incisor, the root is ___ and evenly ___

  • long
  • tapered

53

from the lingual aspect of the mandibular deciduous central incisor, the ___ and ___ can easily be seen

marginal ridges and cingulum

54

from the lingual aspect of the mandibular deciduous central incisor, the lingual surface may have a ___ look at ___ to ___ 1/3

  • flattened
  • middle to incisal

55

from the lingual aspect of the mandibular deciduous central incisor, there may be a slight concavity or ____

lingual fossa

56

from the mesial aspect of the mandibular deciduous central incisor, the incisal ridge is centered over the center of the root and ____

labial and lingual crests of contour

57

from the mesial aspect of the mandibular deciduous central incisor, the cerivcal bulges are ___

prominent

58

from the mesial aspect of the mandibular deciduous central incisor, the labiolingual measurement is only ___mm smaller than maxillary central.  this is important for ___

  • 1mm
  • strength

59

T or F:

the distal view of the mandibular deciduous central incisor is the reverse of the mesial view

true

60

from the distal aspect of the mandibular deciduous central incisor, a ____ on the distal side of the root is often seen

developmental depression

61

from the incisal aspect of the mandibular deciduous central incisor, the edge is ___ and bisects the crown ____

  • straight
  • labiolingual

62

from the incisal aspect of the mandibular deciduous central incisor, the lingual surface will taper toward the ___

cingulum

63

from the incisal aspect of the mandibular deciduous central incisor, a flattened labial surface can be seen, only slightly ___ on the lingual

concage

64

the mandibular deciduous lateral incisor's outlines are similar to the central, only this tooth is ___ than the central except for the ___ measurement, which is about the same

  • larger
  • labiolingual

65

from the incisal aspect of the mandibular deciduous central incisor, it's incisal ridge tends to slope downward ___ so that the contact area on the ___ is ___

  • distal
  • distal
  • lower

66

the mandibular deciduous canine is very similar to the maxillary canine except the crown and root might be a little ____

shorter

67

the mandibular deciduous canine's cervical ridges are ____ as the maxillary canine

not as pronounced

68

the mandibular deciduous canine's distal slope is ___ than the mesial slope

  • longer
  • this aids in proper intercuspation