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Radiographic Interpretation > Lecture 3- Dental Anomalies II > Flashcards

Lecture 3- Dental Anomalies II Flashcards

1
Q

An 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 affect?

A

Both primary & permanent

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3
Q

List and describe the 4 general types of amelogenesis imperfecta:

A
  1. Type 1: Hypoplastic type
  2. Type II: Hypomaturation type
  3. Type 3: Hypomineralized or Hypocalcified
  4. Type 4: Hypoplastic Type
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4
Q

Describe Type 1 amelogenesis imperfecta:

A

Hypoplastic type- thinner but hard enamel

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5
Q

Describe type 2 amelogenesis imperfecta:

A

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

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6
Q

Describe type 3 amelogenesis imperfecta:

A

Hypomineralized or Hypocalcified- softer rough colored undermineralized enamel

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7
Q

Describe type 4 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 1: Hypoplastic type

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9
Q

Type 1 amelogenesis imperfecta is a ____ enamel defect

A

quantitative

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10
Q

Type 1 amelogenesis imperfecta is a quantitative enamel defect caused by:

A

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

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11
Q

Describe a teeth that are affected by amelogenesis imperfecta Type 1:

A
  1. generalized or localized, pits, striae & groove defects
  2. diffuse smooth, or rough
  3. Teeth appear white tot yellow-brown
  4. small teeth
  5. square shaped teeth
  6. open contacts “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 1 amelogenesis imperfecta

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13
Q

Type 1 amelogenesis imperfecta, causes delayed ____ and increased ____

A

eruption; impaction

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14
Q

What can be seen in this image?

A

Type 1 amelogenesis imperfecta

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15
Q

In the following image, we notice some open contacts, what might this indicate?

A

Type 1 amelogenesis imperfecta

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16
Q

Your patient appears like this, what might be the cause?

A

Type 1 amelogenesis imperfecta- teeth appear white to yellow brown

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17
Q

What can be seen in the following pano?

A

Type 1- amelogenesis imperfecta

(open contacts, picket fence contact, flat occlusal surface & small cusps)

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18
Q

What can be seen in the following image?

A

Type 1 amelogenesis imperfecta (open contacts, flat occlusal surface, small cusps)

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19
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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20
Q

Type 2 amelogenesis imperfecta is considered a ___ defect

A

Qualitative

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21
Q

Describe the enamel with Type 2 amelogenesis imperfecta:

A
  1. soft enamel (as radio dense as dentin)
  2. less translucid enamel (cloudy white, yellow, or brown color)
  3. hard and protective
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22
Q

What can be seen in the following image?

A

Type II amelogenesis imperfecta

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23
Q

What can be seen in the following image?

A

type II amelogenesis imperfecta

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24
Q

What can be seen in the following image?

A

Type II amelogenesis imperfecta

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25
Q

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

A

Type 3 amelogenesis imperfecta

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26
Q

Describe the shape of the teeth with type 3 amelogenesis imperfecta (HYPOmineralized type) at eruption:

A

normal shape at eruption

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27
Q

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

A

Type III amelogenesis imperfecta (HYPOmineralized type)

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28
Q

Describe the enamel in Type 3 amelogenesis imperfecta:

A
  1. soft enamel- less dense than dentin in radiographs
  2. color of enamel can range from white to creamy yellow-brown
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29
Q

Describe the wear patterns seen on teeth in someone with type 3 amelogenesis imperfecta:

A

grossly worn teeth (to gingival level)

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30
Q

What can be seen in the following image?

A

Type 3 amelogenesis imperfecta (enamel less dense than dentin)

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31
Q

What can be seen in the following image?

A

Type 3 amelogenesis imperfecta (teeth are worn)

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32
Q

The ___ dentition is more severely affected with dentinogeneis imperfecta:

A

primary dentition

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33
Q

Describe the color of teeth with dentinogenesis imperfecta:

A

amberlike translucency (yellow to blue-grey)

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34
Q

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

A

enamel; DEJ

35
Q

With deniogenesis imperfecta, accelerated attrition leads to:

A

anterior open bite

36
Q

With dentinogenesis imperfecta, cervical constriction results in:

A

bulbous crowns

37
Q

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

A
  1. accelerated attrition
  2. cervical constriction
38
Q

Describe the roots of teeth affected by dentinogenesis imperfecta:

A

short & slender roots

39
Q

Describe the pulp chambers of teeth affected by dentin-genesis imperfecta

A

partial or complete obliteration of pulp chambers and canals

40
Q

What can be seen in the following image?

A

dentin-genesis imperfecta

41
Q

What can be seen in this radiograph?

A

dentinogenesis imperfecta

42
Q

What can be seen in this radiograph?

A

dentinogenesis imperfecta

43
Q

What is being described below?

  • associated with osteogenesis imperfecta
  • mutation in collagen synthesis genes
A

Type 1 dentinogenesis imperfecta

44
Q

What is being described below?

  • no skeletal defects
  • enlarged pul chambers in primary teeth (occasional)
A

Type 2 dentinogenesis imperfecta

45
Q

What is being described below?

  • brandywine isolate
  • found in people originating from southern Maryland
  • enlarged pulp chambers
  • pulp exposures
A

Type 3 dentinogenesis imperfecta

46
Q

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

A

Type 1

47
Q

What types of dentinogensis imperfecta is associated with enlarged pulp chambers?

A

Type 2 & 3

48
Q

Brandywine isolate:

A

Type 3 Dentinogenesis imperfecta

49
Q

What can be seen in the following pano?

A

Dentinogenesis imperfecta

50
Q

Acquired abnormalities include:

A
  1. attrition
  2. abrasion
  3. erosion
  4. third molar impaction
51
Q

Physiologic wear of teeth:

A

attrition

52
Q

What can be seen in this image?

A

mamelons

53
Q

What can be seen in the following radiograph?

A

attrition

54
Q

What can be seen in the following radiograph?

A

attrition

55
Q

What can be seen in the following images?

A

attrition

56
Q

Mechanical wear of teeth:

A

abrasion

57
Q

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

A

abrasion; tooth brushing abrasion

58
Q

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

A

abrasion; tooth pick

59
Q

What can be seen in the following radiograph?

A

abrasion

60
Q

What can be seen in the following radiograph?

A

abrasion

61
Q

What can be seen in the following radiograph?

A

abrasion

62
Q

What is a risk of the behavior seen int he following image?

A

abrasion

63
Q

Chemical wear of teeth:

A

erosion

64
Q

What can be seen in the following images?

A

erosion

65
Q

What can be seen in the following image? What might be the cause?

A

erosion; acidic foods

66
Q

Erosion on the lingual surface of teeth is likely due to:

A

bulimia

67
Q

What can be seen in the following image?

A

erosion due to bulimia

68
Q

What can be seen in the following radiograph?

A

erosion

69
Q

What can be seen in the following radiograph?

A

erosion

70
Q

Third molar impactions can be classified as: (2)

A
  1. full impaction
  2. partial impaction
71
Q

What orientation of third molar impaction can be seen?

A

mesioangular

72
Q

What orientation of third molar impaction can be seen?

A

distoangular

73
Q

What orientation of third molar impaction can be seen?

A

vertical

74
Q

What orientation of third molar impaction can be seen?

A

horizontal

75
Q

What orientation of third molar impaction can be seen?

A

buccoangular

76
Q

What orientation of third molar impaction can be seen?

A

linguoangular

77
Q

What orientation of third molar impaction can be seen?

A

inverted

78
Q

what can be seen in the following image?

A

inverted impacted third molar

79
Q

what can be seen in the following image?

A

horizontal impacted 3rd molar

80
Q

what can be seen in the following image?

A

distoangular impacted 3rd molar

81
Q

what can be seen in the following image?

A

distoangular impacted 3rd molar

82
Q

what can be seen in the following image?

A

buccoangular impacted 3rd molar

83
Q

what can be seen in the following image?

A

Radiographic Interpretation (10 decks)

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