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Radiographic Interpretation > L3- Dental Anomalies II > Flashcards

L3- Dental Anomalies II Flashcards

1
Q

Inherited genetic mutation. Isolated or syndromic. Enamel is affected in all or nearly all teeth:

A

Amelogenesis imperfecta

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2
Q

What dentition does amelogenesis imperfecta typically affect?

A

BOTH primary & permanent

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3
Q

List and describe the four general types of amelogenesis imperfecta:

A
  1. Type I- hyopplastic type
  2. Type II- hypomaturation type
  3. Type III- hypomineralize/hypocalcified
  4. Type IV- hypoplastic
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4
Q

Describe Type I amelogenesis imperfecta:

A

Hypoplastic type
-thinner but hard enamel

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5
Q

Describe Type II amelogenesis imperfecta:

A

Hypomaturation type
-relatively hard but colored (not translucent) enamel

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6
Q

Describe Type III amelogenesis imperfecta:

A

Hypomineralized or Hypocalcified
-soft or rough colored under mineralized enamel

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7
Q

Describe Type IV amelogenesis imperfecta:

A

Hypoplastic
-hypomature with taurodontism

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8
Q

What type of amelogenesis imperfecta is being described?

“Thin but mineralized enamel, looks radiopaque”

A

Type I- hypoplastic type

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9
Q

Type I amelogenesis imperfecta is a ____ enamel defect

A

quantitative

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10
Q

Type I amelogenesis imperfecta is a quantitative enamel defect caused by:

A

failure during enamel matrix secretary stage (enamel agenesia is rare)

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11
Q

Describe teeth that are affected by amelogenesis imperfecta Type I:

A
  1. generalized or localized pits, striae or groove defects
  2. diffuse smooth, or rough
  3. teeth appear white to yellow-brown
  4. small teeth
  5. square shaped teeth
  6. open contact “picket fence” appearance
  7. Flat occlusal surface with low cusps
  8. delayed eruption & increased impaction
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12
Q

If someone displays a “picket fence” appearance this might be indicative of:

A

Type I amelogenesis imperfecta

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13
Q

Type I amelogenesis imperfecta cause delayed _____ and increased ____

A

eruption; impaction

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14
Q

What can be seen in this image?

A

Type I amelogenesis imperfecta

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15
Q

In the following image, we note some open contacts, what night this indicate?

A

Type I amelogenesis imperfecta

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16
Q

Your patient appears like this, what is the likely cause?

A

Type I amelogenesis imperfecta

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17
Q

Your patient appears like this, what is the likely cause?

A

Type I amelogenesis imperfecta

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18
Q

Your patient appears like this, what is the likely cause?

A

Type I amelogenesis imperfecta

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19
Q

Your patient appears like this, what is the likely cause?

A

Type I amelogenesis imperfecta

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20
Q

What can be seen In the following pano?

A

Type I amelogenesis imperfecta

-open contacts
-picket fence contact
-flat occlusal surfaces

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21
Q

What can be seen in the following radiographic images?

A

Type I amelogenesis imperfecta

-open contacts
-flat occlusal surface
-small cusp

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22
Q

Type of amelogenesis imperfecta in which the patient has a normal thickness of enamel, but the enamel is soft (as radio dense as dentin) & less translucid:

A

Type II- HYPOmaturation

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23
Q

Type II amelogenesis imperfecta is considered a ____ defect

A

qualitative

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24
Q

Describe the enamel with type II amelogenesis imperfecta:

A
  1. soft enamel (as radio dense as dentin)
  2. less translucent enamel (cloudy white, yellow or brown color)
  3. hard & protective
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25
What can be seen in the following image?
Type II amelogenesis imperfecta
26
What can be seen in the following image?
Type II amelogenesis imperfecta
27
What can be seen in the following image?
Type II amelogenesis imperfecta
28
Type of amelogenesis imperfecta where the enamel is of a NORMAL THICKNESS but is soft, porous & sheds easily for the dentin:
Type III amelogenesis imperfecta
29
Describe the shape of the teeth with type III amelogenesis imperfecta HYPOmineralized type at eruption:
normal shape at eruption
30
What type of amelogenesis imperfecta are the teeth very sensitive to even physical contact with the toothbrush?
Type III (HYPOmineralized type)
31
Describe the enamel in type III amelogenesis imperfecta:
1. soft enamel- less dense than dentin in radiograph 2. color of enamel to range from white to creamy yellow-brown
32
Describe the wear patterns of teeth in patients with Type III amelogenesis imperfecta:
grossly worn teeth (to gingival level)
33
What can be seen in the following image?
Type III amelogenesis imperfecta -teeth worn down
34
What can be seen in the following image?
Type III amelogenesis imperfecta -enamel less dense than dentin in the image
35
The _____ dentition is more severely affected by dentinogenesis imperfecta
primary
36
Describe the color of teeth affected by dentinogenesis imperfecta:
1. Amberlike translucency 2. yellow to blue-grey
37
In ______ the enamel separates easily from the dentin (faulty at ____)
dentinogenesis imperfecta; DEJ
38
With dentinogenesis imperfecta accelerated attrition leads to:
anterior open bite
39
With dentinogenesis imperfecta, cervical constriction results in:
bulbous crowns
40
In dentinogenesis imperfecta, what leads to anterior open bite? What leads to bulbous crowns?
1. accelerated attrition 2. cervical constriction
41
Describe the roots of teeth affected by dentinogenesis imperfecta:
short & slender roots
42
Describe the pulp chambers of teeth affected by dentinogenesis imperfecta:
partial or complete obliteration of pulp chambers & canals
43
What can be seen in the following image?
dentinogenesis imperfecta
44
What can be seen in the following image?
dentinogenesis imperfecta
45
What can be seen in the following image?
dentinogenesis imperfecta
46
What is being described below? -associated with osteogenesis imperfecta -mutation in collagen synthesis genes
Type I Dentinogenesis imperfecta
47
What is being described below? -no skeletal defects -enlarged pulp chambers in primary teeth (occasional)
Type II Dentinogenesis imperfecta
48
What is being described below? -brandywine isolate -found in people originating from southern maryland -enlarged pulp chambers -pulp exposure
Type III Dentinogenesis imperfecta
49
What type of Dentinogenesis imperfecta is associated with a mutation in collagen synthesis?
Type I
50
What type of Dentinogenesis imperfecta is associated with enlarged pulp chambers?
Type II
51
Brandywine isolate:
Type III Dentinogenesis imperfecta
52
What can be sene in the following image?
Dentinogenesis imperfecta
53
Acquired abnormalities include:
1. attrition 2. abrasion 3. erosion 4. third molar impaction
54
Physiologic wear of teeth:
Attrition
55
What can be seen in the following image?
Mamelons
56
What can be seen in the following radiograph?
attrition
57
What can be seen in the following radiograph?
attrition
58
What can be seen in the following radiograph?
attrition
59
What can be seen in the following image?
attrition
60
What can be seen in the following image?
attrition
61
Mechanical wear of teeth:
abrasion
62
What can be seen in the following image? what is a likely cause?
abrasion; tooth brushing
63
What can be seen in the following radiograph?
Abrasion
64
What can be seen in the following radiograph?
abrasion
65
What can be seen in the following radiograph?
abrasion
66
What can be seen in the following radiograph?
abrasion
67
What is a risk of the behavior seen in the following image?
abrasion
68
Chemical wear of teeth:
erosion
69
What can be seen in the following image?
erosion
70
What can be seen in the following image?
erosion
71
What can be seen in the following image?
erosion; acidic foods
72
What can be seen in the following image? What is a likely cause?
erosion; bulimia
73
What can be seen in the following image? What is a likely cause?
erosion; acid reflux
74
What can be seen in the following image? What is a likely cause?
erosion; acid reflux
75
What can be seen in the following images?
erosion
76
What orientation of third molar impaction can be seen in the following image?
mesioangular
77
What orientation of third molar impaction can be seen in the following image?
distoangular
78
What orientation of third molar impaction can be seen in the following image?
vertical
79
What orientation of third molar impaction can be seen in the following image?
horizontal
80
What orientation of third molar impaction can be seen in the following image?
buccoangular
81
What orientation of third molar impaction can be seen in the following image?
linguoangular
82
What orientation of third molar impaction can be seen in the following image?
inverted
83
What can be seen in the following image?
Impacted 3rd molar - Inverted (distoangular)
84
What can be seen in the following image?
Impacted 3rd molar - inverted (mesioangular)
85
What can be seen in the following image?
Impacted 3rd molar - distoangular
86
What can be seen in the following image?
Impacted 3rd molar - distoangular
87
What can be seen in the following image?
Impacted 3rd molar - buccoangular
88

Radiographic Interpretation (11 decks)

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