primary dentition Flashcards Preview

dental anatomy > primary dentition > Flashcards

Flashcards in primary dentition Deck (77):
1

order the eruption sequence of primary dentition

lateral incisors

central incisor

Second molars 

canines

primary molars

Central incisors 

Lateral incisors 

First molars (“One year molars”) 

Canines 

Second molars (“Two year molars”)

2

very similar in form to permanent counterparts, but smaller and less pronounced morphologic features

incisor

3

tf incisors primary teeth have no mammelons

T

4

crown of incisors (primary)

appear squatted

5

tf primary incisors onlhave buccal cervical ridges

F

buccal and cervical ridges

6

incisor primary teeth

mesial CEJ more incisally positioned than distal

7

roots of incisor(primary teeth)

narrow and pointed

8

---- angle of lower lateral incisor (primary) quite rounded

DI angle of lower lateral incisor (primary) quite rounded

9

diamond shaped crown4

– maxillary canine primary teeth

10

diff between maxillary canine and permanent max canine

max canine

has longer mesial cusp ridge (slope) than distal slope

11

maxillary canine (primary) has marked ---- and ---- cervical bulges

maxillary canine has marked facial and lingual cervical bulges

12

arrow-shaped crown

primary mandibular canine

13

mandib canine(primary tooth)

mandibular canine has shorter mesial slope than distal slope

14

more slender with less prominent marginal ridges on lingual aspect

primary mandib canine

15

basically resembles maxillary premolar

max 1st molar

16

major cusps of max 1st molar

MB and Ml

17

DB and DL cusps

insig in size of max first molar

18

largest cusp of max 1st molar

MB

19

tf max 1st molar crown is more wide occlusocervically than mesiodistally

F

crown wider mesiodistally than occlusocervically

20

primary max 1st molar

prominent ----- and ----- cervical heights of contour (bulges)

 prominent B & L cervical heights of contour (bulges)

21

slender and flared 

roots of max 1st molar

22

how many roots are on primary 1st molar

3

23

tf primary 1st molar has a huge root trunk 

F

small root trunk

24

morphologically identical to permanent maxillary 1st molar including cusp of Carabelli;

primary max 2nd molar

25

smaller and squatter than permanent maxillary 1st molar

primary maxillary 2nd molar

26

roots of primary max 2nd molar

more flared and slender

27

small rot trunk 

prrimary max 2nd molar

28

primary max 2nd molar

greatest faciolingual diameter of all primary teeth

29

tf primary max 2nd molar is smaller than primary 1st molar

f

larger than primary 1st molar

30

primary mandib 2nd molar

identical to permanent mandibular 1st molar

31

primary mandib 2nd molar

smaller and squatter than permanent mandibular 1st molar

32

cervical bulges and constriction

primary mand 2nd molar

33

more flared and slender than permanent 1st molar

roots of primary mandib 2nd molar

34

how many roots for primary mandib 2nd molars 

2

M and D

35

small root trunk

primary mandib 2nd molar

36

tf primary teeth are darker than  perament teeth

F

lighter

37

have more pronounced cervical ridges (

primary teeth or permanent

primary teeth

38

more constricted at the cervix (neck)

primary or permanent

primary teeth

39

tf crown roots are long and narrow in relation to crown width and length

T

40

most unique primary tooth morphologically

primary mandibular first molar

41

Primary teeth are smaller in overall dimensions

to permanent teeth

42

large pulps with long pulp horns

primary teeth

43

more flared and slender roots which extend beyond the crown outlines, thus allowing space for the growth and development of the succeeding permanent teeth

 

primary molar

44

primary molars

short root trunks

and furcation areas approaching the CEJ

45

tf Primary pre-molars have buccal and lingual surfaces that are more convergent occlusally, result in narrow occlusal table

f

Primary molars have buccal and lingual surfaces that are more convergent occlusally

46

correct the statement

primary teeth; thin enamel with dispersed thickness

primary teeth; thin enamel with consistent thickness

47

difference between primary molar and permanent molars

enamel rods of primary molars at the CEJ point occlusally rather than gingivally as with permanent molars

48

tf 

Primary teeth have lot of dentin between pulp and dentino-enamel junction (DEJ)

F

Primary teeth have little dentin between pulp and dentino-enamel junction (DEJ)

49

comparatively longer and narrower roots with respect to their crowns

primary ant teeth

50

primary ant teeth vs permanent ant teeth

primary ant teeth

appear wider mesiodistally and shorter occlusocervically

51

lack mammelons on incisal ridge

primary ant teeth

52

tf The teeth of children and young people are more sensitive than the teeth of older people to thermal change and dental operative procedures

t

53

leeway space

Primary molars are wider mesiodistally than the premolars that replace them

54

leeway space

allows space for some mesial movement of the permanent first molars as the premolars erupt

55

As jaws grow, spacing between ---- ------occurs thus providing room for the larger permanent successors to erupt

As jaws grow, spacing between primary anteriors occurs thus providing room for the larger permanent successors to erupt

56

erupt at age 7-8 

lower lat inc

upper central inc

57

upper m1 and lower canine

erupt at age 9-10

58

erupt at age 6-7

lower m1 and Central incisor

59

erupt at age 10-12

lower p1 

upper P2

60

erupt at 17-21

m3 up and down

61

erupt at age 11-12

upper canine

and lower P2

62

erupt at age 11-13

lower M2

63

erupt at age 12-13

upper M2

64

erupt at age 10-11

upper P1

65

lat inc of upp

erupt at 8-9

66

primary teeth

Guide the permanent teeth to erupt at the correct position in the dental arch since the permanent teeth grow under the primary teeth

67

The current U.S. population with access to fluoridated water is approximately --- percent.

The current U.S. population with access to fluoridated water is approximately 74 percent.

68

---- of all dental fluorosis was the very mild to mild form of dental fluorosis

94%

69

1986

dental fluorosis was present in 22.3% of the children examined

70

tf primary molar have Thicker dentin in central fossa than

permanent molar

T

71

thinner enamel

primary or permanent molar

primary molar

72

Higher pulp horns and larger pulp chamber

primary or permanent molar

primary molar

73

tf permanent molar have

More pronounced cervical ridges than primary molar

F

primary>permanent

74

tf in prmary molar . Enamel rods near CEJ slope gingivally

F

. Enamel rods near CEJ slope occlusally

75

. More constricted cervix

primary molar or permanent molar

primary molar

76

slender and longer , flared root

primary molar

77