Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

DMD 5300 Dental Anatomy 2 > Primary Dentition (complete) > Flashcards

Primary Dentition (complete) Flashcards

1
Q

Using the universal naming system what are the tooth numbers for the four 2nd molars in the primary dentition

A

A, J, K, T
AJ = boys name
KT = girls name

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Using the universal naming system what are the tooth numbers for the four canines in the primary dentition

A

C, H, M, R
CH = C&H sugar
MR = Mister

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the functions of the primary dentition

A
  1. Chewing
  2. Enable kids to take in their own nutrients
  3. support lips and cheeks
  4. allow for formulation of speech sounds
  5. MAINTAIN ARCH SPACE AND ROOM FOR PERMANENT TEETH
  6. Provide a pathway and guiding surface for the eruption of permanent dentition
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How does the arch shape for the primary dentition compare to the arch shape of the permanent dentition

A

the arch in the primary dentition is more rounded

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What influences the arch shape and size

A
  1. how the teeth are shaped

2. shape and size of the underlying bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How do the primary anterior teeth compare and resemble the permanent anterior teeth

A

They generally resemble the permanent teeth, but they are smaller

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what does the primary 1st maxillarymolar look like when comparing it to the permanent dentition

A

it resembles a permanent maxillary premolar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What do the primary 2nd molars look like when comparing it to the permanent dentition

A

they look like the first molars of the same arch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which primary tooth doesn’t resemble an other tooth

A

the 1st mandibular molar (primary)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What did Dr. Densley say the primary first mandibular molar kind of looks like

A

half premolar, half molar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

In general how does the size of primary teeth compare to the permanent teeth

A

They are usually smaller except for the primary molars are larger than the permanent premolars that replace them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

how does the whiteness of the primary teeth compare to the whiteness of the permanent teeth

A

primary teeth are whiter than the permanent teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

how does thickness of enamel compare between primary teeth and permanent teeth

A

the enamel is 1/2 as thick on primary teeth as it is on permanent teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is significant about the 1/2 as thick enamel on primary teeth as compared to the thickness of enamel on permanent teeth

A

decay spreads faster on the primary tooth with 1/2 as thick enamel.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What allows the permanent posterior teeth to shift slightly mesial while they are erupting

A

the fact that the primary molars are wider than the permanent premolars that succeed them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is the late mesial shift

A

when permanent posterior teeth shift slightly mesial while they are erupting. This is possible due to the fact that the primary molars are wider than the permanent premolars that succeed them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which teeth begin to calcify at birth

A

permanent first molars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the noticable differences between primary crowns and permanent crowns

A
  1. They are smaller and more bulbous
  2. they are bell shaped (due to greater cervical constriction)
  3. incline lingually as you move occlusally
  4. have the buccal bulge (buccogingival ridge)
  5. broad flat proximal contacts
  6. narrow occlusal surfaces
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How does the bell shape and buccal bulge have a clinical significance

A

they can both be used to help retain stainless steel crowns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What shape are the primary maxillary central incisors

A

shovel shaped

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what shape are the primary mandibular incisors (all 4) and the primary maxillary lateral incisors

A

chisel shaped (more slender and smaller than the primary maxillary central incisors)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

incisocervically the primary anterior teeth have the appearance of being _______

A

compressed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

How does the pulp of primary teeth compare to the pulp of permanent teeth

A

they are proportionally larger (they make up a larger percentage of the tooth on primary teeth than on permanent teeth)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what is significant about the pulp horns of primary molars

A

they have long mesial pulp horns that lie relatively close to the occlusal surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

do permanent or primary molars have large mesial pulp horns

A

primary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

are the distal or mesial pulp horns long on primary molars

A

mesial pulp horns are long

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Which primary tooth can be confused with which permanent teeth of the same arch

A

the primary second molars can be confused with the permanent 1 molars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What are the differences between the roots of primary teeth and the roots of permanent teeth

A
  1. primary roots are more slender and tapered
  2. primary anterior teeth roots are straight and avoid distal tipping of their apices
  3. primary molars roots diverge and bulge (create a large gap inbetween their separate roots)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Why do the roots of primary teeth diverge and bugle

A

because they need to make room for the development of the underlying premolars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Why do you need to exercise care when attempting an extraction of primary teeth with unresorbed, or partially unresorbed roots

A

because you can easily damage the underlying permanent tooth, or fracture the primary tooth’s root

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

How does the thickness of dentin in primary teeth compare to the dentin in permanent teeth

A

the dentin in primary teeth is 1/2 as thick as the dentin in permanent teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

we know that the pulp is larger proportionally in primary teeth than in permanent teeth, but how do the canals of primary teeth compare to the canals of permanent teeth

A

the canals in primary teeth have many accessory canals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

what is the significance of primary teeth having many accessory canals

A

it makes root canal treatment very difficult, if not impossible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What is attrition

A

the wearing down of teeth from tooth to tooth contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Do permanent or primary teeth more frequently show attrition

A

primary teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

what do primary teeth that have attrition look like

A

short, stubby, flat teeth. looks like the incisal half of the tooth has been cut off)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

can primary teeth have enough attrition that the dentin becomes exposed

A

yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

what kind of treatment is usually required in children with attrition

A

no treatment is usually required

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

what is our objective as dentists with primary teeth

A

to make sure the children retain their primary teeth until they are replaced by a permanent tooth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

which is the first tooth of which hard tissue formation begins, and when does it begin

A

the maxillary central incisor, and it begins at 4 months in utero

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

when does the first primary tooth begin formation of hard tissue

A

at 4 months in utero. (max. Cent. Incisor)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

How consistent is the timing of eruption of the primary teeth

A

it is very variable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

which is more important, the timing or sequence of eruption of the primary teeth

A

the sequence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

which is the most common congenitally missing primary tooth

A

the primary maxillary lateral incisor

45
Q

how common is it that the primary maxillary lateral incisor is missing

A

it is very rare, but it is the most common congenitally missing tooth

46
Q

What does it mean for the permanent tooth if its deciduous primary tooth is missing

A

it means that the permanent tooth will be missing as well

47
Q

What is the simplified rule of primary eruption sequence (using the palmar system)

A

A –> B –> D –> C –> E

centrals, laterals, first molars, cuspids. second molars

48
Q

What is the eruption dates according to the modified rule of 4

A
  • 7 months - first teeth erupt
  • 11 months - 4 teeth - central incisors present
  • 15 months - 8 teeth - lateral incisors (and central incisors)
  • 19 months - 12 teeth - 4 first molars (and incisors)
  • 23 months - 16 teeth - canines (and incisors, 4 first molars)
  • 27 months - 20 teeth - 4 second molars (and all other teeth)
49
Q

at about what time have all does the eruption of primary teeth become complete

A

between 24 and 30 months

50
Q

When do the crown of all primary teeth begin to calcify

A

between 3.5 and 6 months

51
Q

When do permanent teeth begin to calcify, and which teeth are first

A

they begin to calcify at birth, and that begins with the permanent first molars

52
Q

Which teeth replace primary incisors

A

permanent incisors

53
Q

which teeth replace primary canines

A

permanent canines

54
Q

which teeth replace primary molars

A

permanent premolars

55
Q

what do you call teeth that are replaced by another tooth

A

deciduous teeth

56
Q

what do you call teeth that replace other teeth

A

succedaneous teeth

57
Q

what do you call teeth that don’t replace other teeth, and aren’t replaced by other teeth

A

Accessory teeth

58
Q

Which teeth are deciduous

A

all 20 primary teeth

59
Q

Which teeth are succedaneous

A

the permanent incisors, canines, and premolars

60
Q

Which teeth are accessory

A

the permanent molars

61
Q

Why is the timing of calcification of teeth important

A

because if a pregnant mother, or child is ill during dental calcification (either permanent or primary) the formation of the crowns of the teeth can be affected

62
Q

Is spacing between the primary teeth desirable or not

A

yes it is desirable

63
Q

why is spacing in primary teeth desirable

A

because the permanent teeth are generally larger and need more space to fit in the arch properly

64
Q

What is the primate space

A

The large spaces where the canines fit into the opposing arch

65
Q

Where are the primate spaces

A

Mesial to the maxillary canine (where the mandibular canine fits)
Distal to the mandibular canine (where the maxillary canine fits)

66
Q

When is the primate space important

A

during canine and premolar eruption

67
Q

When in a person’s life do they have a primary dentition

A

it begins with eruption of the first tooth (about 7 months)
It is complete from about 30 months to 6 years
only primary teeth

68
Q

When is a person’s life do they have a mixed dentition

A

from about age 6 to 13

when you have both primary and permanent teeth

69
Q

When is a person’s life do they have adolescent dentition

A

When you have no primary teeth left, but haven’t had all of your teeth erupt (2nd and 3rd molars may not have completely erupted)
Only permanent teeth

70
Q

When in a persons life do they have an adult dentition

A

when all of the permanent teeth are in and eruption is complete
Only permanent teeth

71
Q

How does the angulation of primary incisors compare to the angulation of permanent incisors

A

primary incisors are less angled, more up and down, than permanent incisors

72
Q

What kind of angulation do the permanent incisors have

A

labial angulation

73
Q

how does the overbite and overjet of primary teeth compare to the overbite and overjet of permanent teeth

A

primary teeth have little and less overbite and overjet than permanent teeth

74
Q

What is overbite

A

its a vertical measurement of how far down the maxillary incisors come down over the mandibular incisors

75
Q

What is overjet

A

a horizontal measurement of how far out over the mandibular incisors the maxillary incisors stick out

76
Q

What are lines of Retzius

A

lines in the enamel of teeth (because enamel forms in layers)
Reminds me of the rings in the trunk of a tree

77
Q

What is the neonatal line

A

a dark band of enamel (line of retzius) that is deposited at the time of birth

78
Q

What causes the neonatal line

A

The abrupt change for the body of the fetus that occurs at birth.

79
Q

How is the neonatal line used in forensics

A

it can be used to determine age at death

80
Q

Why is the neonatal line only found in primary teeth

A

because none of the primary teeth begin calcification before birth (although the 1st primary molars begin at birth)

81
Q

What are natal teeth

A

Teeth present at birth

82
Q

are most natal teeth actual primary teeth or supernumerary teeth

A

actual primary teeth

83
Q

What are neonatal teeth

A

teeth that erupt during the first month of life

84
Q

What is the treatment of neonatal and natal teeth

A

usually they are left alone, but that can make feeding difficult, so they can be removed or smoothed

85
Q

What is Riga-Fede disease

A

traumatic ulceration of the ventral surface of the tongue

86
Q

what usually causes Riga-fede disease

A

natal and neonatal teeth

87
Q

When else can cause riga-fede disease

A

it can occur after eruption of the primary mandibular incisors on infants with repetitive tongue thrust habits

88
Q

What complications does riga-fede disease cause

A

troubles with feeding

89
Q

what is the treatment options for riga fede diseas

A

smoothing incisors
placing composits on incisors
extraction of teeth (natal, neonatal)

90
Q

What is Gemination

A

a single tooth bud that attempts to divide

91
Q

What is Fusion

A

the union of two teeth

92
Q

What is concresence

A

the fusion of two teeth along the root surface

93
Q

how do you tell between gemination and fusion

A

gemination leads to an appearance of “more” teeth

Fusion is when the number of teeth doesn’t change

94
Q

Which one is more likely to lead to a missing permanent tooth fusion or gemination of primary teeth

A

fusion is more likely to lead to a missing permanent tooth

95
Q

What is taurodontism

A

Enlarged bodies and pulp of the tooth

96
Q

Which type of teeth primary or permanent teeth can have taurodontism

A

both primary and permanent teeth can be involved

97
Q

What is a possible cause of hutchinsons incisors, and mulberry molars

A

congenital syphilis

98
Q

what is dens in dente/ dens invaginatus

A

a tooth within a tooth

99
Q

what is fluorosis

A

fluoride staining of the teeth

100
Q

what causes fluorosis

A

excessive fluoride during tooth calcification

101
Q

What does exposure to tetracycline cause in teeth

A

staining of enamel, and even a little bit of the dentin

102
Q

When does exposure to tetracycline cause problems in the teeth

A

during the calcification of teeth

103
Q

what is hyperdontia

A

extra-teeth

104
Q

what is hypodontia

A

missing teeth

105
Q

what arch is more likely to have hyperdontia

A

the maxillary arch

106
Q

what is the most common extra tooth

A

mesiodens (a tooth in between the two maxillary central incisors)

107
Q

Can cleft palate lead to extra teeth

A

yes, particularly in the area of the failed sutures

108
Q

What is cleidocranial dysplasia

A

a disorder in which a person doesn’t have a clavicle, and has a whole bunch of supernumerary teeth

DMD 5300 Dental Anatomy 2 (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions