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Dental Boards part 2 > Pediatric Dentistry > Flashcards

Pediatric Dentistry Flashcards

1
Q

Natal teeth may cause trauma during ___________ due to their location

A

Nursing

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2
Q

T/F: natal teeth are present within the first 30 days of birth

A

False. Neonatal teeth are.

Natal teeth are present at birth

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3
Q

Where are natal teeth commonly present?

A

Mandibular incisor region

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4
Q

Describe the physiologic appearance of natal and neonatal teeth

A

Hypo calcified enamel matrix

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5
Q

What class of tooth is not present in the primary dentition?

A

Bicuspid

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6
Q

What is the rule of 4?

A

4 teeth every 4 months starting with 4 teeth at 7 months

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7
Q

What is the order of eruption for the primary dentition?

A

Max incisors, lateral incisors, first molars, canines, second molars

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8
Q

What is the eruption time for a primary max central incisor? What about exfoliation time?

A

Eruption: 8 to 12 months
Exfoliation: 6 to 7 years

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9
Q

What is the eruption time for a primary max lateral incisor? What about exfoliation time?

A

Eruption: 9 to 13 months
Exfoliation: 7 to 8 years

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10
Q

What is the eruption time for a primary max canine? What about exfoliation time?

A

Eruption: 16 to 21 months
Exfoliation: 10 to 12 years

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11
Q

What is the eruption time for a primary max first molar? What about exfoliation time?

A

Eruption: 13 to 19 months
Exfoliation: 9 to 11 years

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12
Q

What is the eruption time for a primary max second molar? What about exfoliation time?

A

Eruption: 25 to 33 months
Exfoliation: 10 to 12 years

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13
Q

What is the eruption time for a primary mand central incisor? What about exfoliation time?

A

Eruption: 6 to 10 months
Exfoliation: 6 to 7 years

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14
Q

What is the eruption time for a primary mand lateral incisor? What about exfoliation time?

A

Eruption: 10 to 16 months
Exfoliation: 7 to 8 years

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15
Q

What is the eruption time for a primary mand canine? What about exfoliation time?

A

Eruption: 17 to 23 months
Exfoliation: 9 to 12 years

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16
Q

What is the eruption time for a primary mand first molar? What about exfoliation time?

A

Eruption: 14 to 18 months
Exfoliation: 9 to 11 years

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17
Q

What is the eruption time for a primary mand second molar? What about exfoliation time?

A

Eruption: 23 to 31 months
Exfoliation: 10 to 12 years

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18
Q

Which of the following is not characteristic of primary teeth?

a) Uniform enamel thickness of 1 mm occlusally
b) Short crowns
c) Lack of buccal and lingual cervical ridges
d) Shallow anatomy
e) Prominent mesial cervical ridge

A

c) EXAGGERATED buccal and lingual cervical ridges

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19
Q

Does a primary mandibular first molar have a central fossa?

A

Nope

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20
Q

Which primary tooth is known to “resemble no other teeth”?

A

Primary mandibular first molar

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21
Q

Which of the following is not characteristic of a primary mandibular first molar?

a) Largest/longest = distal
b) Wide mesial distally with a pronounced cervical ridge
c) Mesial marginal ridge (MMR) = cusp
d) Big MB cervical ridge
e) Difficult class II preparation

A

a) Largest/longest = MESIAL

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22
Q

What is the eruption sequence for the permanent maxillary dentition?

A

1st molar -> CI -> LI -> 1st PM -> 2nd PM -> K9 -> 2nd M -> 3rd M
How to remember that K9 is later -> “MAX the K9 is always late”

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23
Q

What is the eruption sequence for the permanent mandibular dentition

A

1st molar -> CI -> LI -> K9 -> 1st PM -> 2nd PM -> 2nd M -> 3rd M

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24
Q

When a child is 11-12 years old, which teeth do you expect to erupt?

A

Max K9s

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25
When a child is 6 - 7 years old, which teeth do you expect to erupt?
All first molars | Mn CIs
26
When a child is 7 to 8 years old, which teeth do you expect to erupt?
Mx CIs | Mn LI
27
When a child is 8 to 9 years old, which teeth do you expect to erupt?
Mx LIs
28
When do you expect all 2nd molars to erupt?
11 to 13 years old
29
When do you expect all 3rd molars to erupt?
17 to 21 years old
30
When do you expect the mandibular K9s to erupt?
9 to 10 years old
31
When do you expect all premolars to erupt?
10 to 12 years old
32
When do you expect the maxillary K9s to erupt?
11 to 12 years
33
What is class II malocclusion called?
Distocclusion
34
What is a normal molar relationship in neutrocclusion (Class I)?
Mx first molar MB cusp -> Mn first molar buccal groove
35
What is the molar relationship in distocclusion (Class II)?
Mn first molar buccal groove is DISTAL to Mx first molar MB cusp
36
What is the molar relationship in mesiocclusion (Class III)?
Mn first molar buccal groove is MESIAL to Mx first molar MB cusp
37
What is the normal canine relationship in neutrocclusion (Class I)?
Mx canine -> Distal | Mn canine and mesial MN first PM
38
What is the canine relationship in distocclusion (Class II)?
Distal surface of Mn canine is distal to the mesial of Mx canine
39
What is the canine relationship in mesiocclusion (Class III)?
Distal surface of Mn canine is mesial to the mesial of Mx canine
40
Which class of occlusion is also known as prognathic? a) Class I - Neutrocclusion b) Class II - Distocclusion c) Class III - Mesiocclusion
Class III - Mesiocclusion
41
Which class of occlusion is also known as Retrognathic? a) Class I - Neutrocclusion b) Class II - Distocclusion c) Class III - Mesiocclusion
Class II - Distocclusion
42
Which class of occlusion is also known as Mesognathic? a) Class I - Neutrocclusion b) Class II - Distocclusion c) Class III - Mesiocclusion
Class I - Neutrocclusion
43
Which class of occlusion has 2 different divisions? What are they? a) Class I - Neutrocclusion b) Class II - Distocclusion c) Class III - Mesiocclusion
Class II - Distocclusion Div I: Mx teeth in labioversion/overjet Div II: Linguoversion of Mn teeth
44
What is an end-to-end bite?
Cusp-to-cusp occlusion of posterior teeth
45
What is the term for failure of maxillary and mandibular teeth to occlude?
Open bite
46
What is the term for when maxillary incisors are positioned lingually against mandibular incisors in occlusion?
Anterior crossbite
47
What is the term for when primary or permanent maxillary teeth are occluded lingually to the opposing mandibular teeth?
Posterior crossbite
48
What is an edge-to-edge bite?
Incisal edges of maxillary and mandibular teeth meet
49
T/F: After 6 months of age, fluoride can be effective in primary preventive procedures
True
50
T/F: Home fluoride programs using fluoride mouth rinses or brush-on fluoride gels should be recommended for use by school-aged children
False. Only those at high risk for caries
51
At what level of fluoridation does the Food and Nutrition Board recommend public water supplies be fluoridated?
when levels are significantly below 0.7 mg/L
52
When enzyme is inhibited when fluorine intake is at 20-40 mg/day? Why is this enzyme important?
Phosphatase. It's important because it's needed for calcium utilization/metabolism in tissues including bones and teeth
53
T/F: Fluorine intake of 20-40 mg/day can cause heart burn and pains in the extremeties
False. 40-70 mg/day. 20-40 mg/day inhibits phosphatase needed for calcium utilization/metabolism
54
Can topical fluoride cause fluorosis?
No
55
Where is fluoride deposition most concentrated in teeth?
Outermost layer of enamel
56
Which surfaces of teeth benefit the most from fluoride?
Proximal and smooth surfaces
57
At what stage of tooth development does fluoride have a cariostatic effect?
Calcification stage
58
Does fluoride increase or decrease the solubility of enamel?
Decreases
59
What does fluoride convert hydroxyapatite to?
Fluorapatite
60
What is the adult lethal dose of fluoride toxicity? What about child lethal dose?
Adult: 4-5 g Child: 15 mg/kg
61
What is another term for "mottled enamel"?
Fluorosis
62
How do calcium binding products like milk of mangesia help with fluoride toxicity?
lower acidity of stomach to create insoluble complexes with fluoride that decrease absorption
63
What are lobes with respect to odontogenic development?
Primary centers of ossification of the tooth
64
Lobes are separated by __________ in posterior teeth
Developmental Grooves
65
Lobes are separated by _____________ in anterior teeth
Developmental depressions
66
All anterior teeth have how many lobes?
4 lobes. 3 labial and 1 cingulum
67
Which premolar does not have 4 lobes?
Mn 2nd PM -> has 3 buccal and 2 lingual
68
Which molar does not have 4 lobes?
1st molar -> 5 lobes
69
In the chonological order of tooth histiogenesis, what gets deposited first, enamel or dentin?
Dentin. 1) Ectomesenchyme influences downgrowth of oral epithelium -> tooth germ 2) Elongation of inner enamel epithelial cells of enamel organ 3) Differentiation of odontoblasts 4) Deposition of the 1st layer of dentin 5) Deposition of the 1st layer of enamel 6) Deposition of root dentin and cementum
70
What is the term for when one tooth bud splits?
Gemination: two crowns on a single root Usually in incisor region
71
What is one way to tell between fusion and gemination?
If the tooth count if reduced, it is fusion. If the tooth count is normal, it is gemination
72
Which type of odontogenic pathology appears as a macrodont (large crown)? a) Fusion b) Gemination c) Concrescence
a) Fusion
73
Which type of odontogenic pathology appears with cementum contact? a) Fusion b) Gemination c) Concrescence
c) Concrescence
74
Which of the following is a physiologic wearing away of tooth structure? a) Attrition b) Abrasion c) Erosion
a) Attrition
75
Bruxism is an example of: a) Attrition b) Abrasion c) Erosion
a) Attrition
76
Which often presents as flattened incisal edges? a) Attrition b) Abrasion c) Erosion
a) Attrition
77
Which is a pathologic wearing away of tooth structure due to mechanical forces? a) Attrition b) Abrasion c) Erosion
b) Abrasion
78
Which is a chemical loss of tooth structure? a) Attrition b) Abrasion c) Erosion
c) Erosion
79
Which presents with a V-shaped ditch on the affected surfaces of teeth? a) Attrition b) Abrasion c) Erosion
b) Abrasion
80
Which presents with eroded teeth that display a shallow smooth scooped-out depression? a) Attrition b) Abrasion c) Erosion
c) Erosion
81
What is the difference between enamel hypocalcification and enamel hypoplasia?
Enamel hypocalcification is normal quantity but bad quality while enamel hypoplasia is normal quality but deficient quantity of enamel
82
Which is seen in children with hypoparathyroidism? a) Enamel Hypocalcification b) Enamel Hypoplasia
b) Enamel Hypoplasia
83
Which is characterized by defective maturation of ameloblasts? a) Enamel Hypocalcification b) Enamel Hypoplasia
a) Enamel Hypocalcification
84
Which is characterized by defective enamel matrix formation? a) Enamel Hypocalcification b) Enamel Hypoplasia
b) Enamel Hypoplasia

Dental Boards part 2 (4 decks)

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