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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
Q

What can be seen in the following image?

A

Type II amelogenesis imperfecta

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26
Q

What can be seen in the following image?

A

Type II amelogenesis imperfecta

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27
Q

What can be seen in the following image?

A

Type II amelogenesis imperfecta

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28
Q

Type of amelogenesis imperfecta where the enamel is of a NORMAL THICKNESS but is soft, porous & sheds easily for the dentin:

A

Type III amelogenesis imperfecta

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29
Q

Describe the shape of the teeth with type III amelogenesis imperfecta HYPOmineralized type at eruption:

A

normal shape at eruption

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30
Q

What type of amelogenesis imperfecta are the teeth very sensitive to even physical contact with the toothbrush?

A

Type III (HYPOmineralized type)

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31
Q

Describe the enamel in type III amelogenesis imperfecta:

A
  1. soft enamel- less dense than dentin in radiograph
  2. color of enamel to range from white to creamy yellow-brown
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32
Q

Describe the wear patterns of teeth in patients with Type III amelogenesis imperfecta:

A

grossly worn teeth (to gingival level)

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33
Q

What can be seen in the following image?

A

Type III amelogenesis imperfecta

-teeth worn down

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34
Q

What can be seen in the following image?

A

Type III amelogenesis imperfecta

-enamel less dense than dentin in the image

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35
Q

The _____ dentition is more severely affected by dentinogenesis imperfecta

A

primary

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36
Q

Describe the color of teeth affected by dentinogenesis imperfecta:

A
  1. Amberlike translucency
  2. yellow to blue-grey
37
Q

In ______ the enamel separates easily from the dentin (faulty at ____)

A

dentinogenesis imperfecta; DEJ

38
Q

With dentinogenesis imperfecta accelerated attrition leads to:

A

anterior open bite

39
Q

With dentinogenesis imperfecta, cervical constriction results in:

A

bulbous crowns

40
Q

In dentinogenesis imperfecta, what leads to anterior open bite? What leads to bulbous crowns?

A
  1. accelerated attrition
  2. cervical constriction
41
Q

Describe the roots of teeth affected by dentinogenesis imperfecta:

A

short & slender roots

42
Q

Describe the pulp chambers of teeth affected by dentinogenesis imperfecta:

A

partial or complete obliteration of pulp chambers & canals

43
Q

What can be seen in the following image?

A

dentinogenesis imperfecta

44
Q

What can be seen in the following image?

A

dentinogenesis imperfecta

45
Q

What can be seen in the following image?

A

dentinogenesis imperfecta

46
Q

What is being described below?

-associated with osteogenesis imperfecta
-mutation in collagen synthesis genes

A

Type I Dentinogenesis imperfecta

47
Q

What is being described below?

-no skeletal defects
-enlarged pulp chambers in primary teeth (occasional)

A

Type II Dentinogenesis imperfecta

48
Q

What is being described below?

-brandywine isolate
-found in people originating from southern maryland
-enlarged pulp chambers
-pulp exposure

A

Type III Dentinogenesis imperfecta

49
Q

What type of Dentinogenesis imperfecta is associated with a mutation in collagen synthesis?

A

Type I

50
Q

What type of Dentinogenesis imperfecta is associated with enlarged pulp chambers?

A

Type II

51
Q

Brandywine isolate:

A

Type III Dentinogenesis imperfecta

52
Q

What can be sene in the following image?

A

Dentinogenesis imperfecta

53
Q

Acquired abnormalities include:

A
  1. attrition
  2. abrasion
  3. erosion
  4. third molar impaction
54
Q

Physiologic wear of teeth:

A

Attrition

55
Q

What can be seen in the following image?

A

Mamelons

56
Q

What can be seen in the following radiograph?

A

attrition

57
Q

What can be seen in the following radiograph?

A

attrition

58
Q

What can be seen in the following radiograph?

A

attrition

59
Q

What can be seen in the following image?

A

attrition

60
Q

What can be seen in the following image?

A

attrition

61
Q

Mechanical wear of teeth:

A

abrasion

62
Q

What can be seen in the following image? what is a likely cause?

A

abrasion; tooth brushing

63
Q

What can be seen in the following radiograph?

A

Abrasion

64
Q

What can be seen in the following radiograph?

A

abrasion

65
Q

What can be seen in the following radiograph?

A

abrasion

66
Q

What can be seen in the following radiograph?

A

abrasion

67
Q

What is a risk of the behavior seen in the following image?

A

abrasion

68
Q

Chemical wear of teeth:

A

erosion

69
Q

What can be seen in the following image?

A

erosion

70
Q

What can be seen in the following image?

A

erosion

71
Q

What can be seen in the following image?

A

erosion; acidic foods

72
Q

What can be seen in the following image? What is a likely cause?

A

erosion; bulimia

73
Q

What can be seen in the following image? What is a likely cause?

A

erosion; acid reflux

74
Q

What can be seen in the following image? What is a likely cause?

A

erosion; acid reflux

75
Q

What can be seen in the following images?

A

erosion

76
Q

What orientation of third molar impaction can be seen in the following image?

A

mesioangular

77
Q

What orientation of third molar impaction can be seen in the following image?

A

distoangular

78
Q

What orientation of third molar impaction can be seen in the following image?

A

vertical

79
Q

What orientation of third molar impaction can be seen in the following image?

A

horizontal

80
Q

What orientation of third molar impaction can be seen in the following image?

A

buccoangular

81
Q

What orientation of third molar impaction can be seen in the following image?

A

linguoangular

82
Q

What orientation of third molar impaction can be seen in the following image?

A

inverted

83
Q

What can be seen in the following image?

A

Impacted 3rd molar - Inverted (distoangular)

84
Q

What can be seen in the following image?

A

Impacted 3rd molar - inverted (mesioangular)

85
Q

What can be seen in the following image?

A

Impacted 3rd molar - distoangular

86
Q

What can be seen in the following image?

A

Impacted 3rd molar - distoangular

87
Q

What can be seen in the following image?

A

Impacted 3rd molar - buccoangular

88
Q
A

Radiographic Interpretation (11 decks)

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