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Oral Radiology > Intraoral Anatomy- maxillary - Exam II > Flashcards

Intraoral Anatomy- maxillary - Exam II Flashcards

1
Q

How does the pulp appear on a radiograph? Why?

A

Appears radiolucent because it is soft tissue

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2
Q

How does dentin appear on a radiograph? Why?

A

Appears intermediate radiopaque because its kind of a mix of soft and mineralized tissue

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3
Q

The cortical bone attaching PDL to tooth:

A

Lamina dura

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4
Q

How does the lamina dura appear radiographically? Why?

A

Appears radiopaque because its very dense

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5
Q

Space between the lamina dura and tooth:

A

ligament space

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6
Q

The teeth sockets are bounded by a thin radiopaque layer of dense bone called the:

A

lamina dura

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7
Q

What do the arrows represent in the following image?

A

lamina dura

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8
Q

Describe what can be seen in the following image:

A

lamina dura around a recently extracted tooth (socket)

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9
Q

What kind of bone comprises the lamina dura?

A

cortical bone

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10
Q

What does it mean if you do NOT see the lamina dura in a radiograph?

A

it does NOT mean that there is some sort of pathology (it may mean that, but it also may mean the x-ray angulation is off)

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11
Q

The gingival margin of the alveolar process between teeth (radiopaque line):

A

Alveolar crest

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12
Q

The lamina dura should be continuous with:

A

the alveolar crest

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13
Q

The top area of the alveolar process:

A

alveolar crest

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14
Q

Seen as cortical borders of the alveolar bone:

A

alveolar crest

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15
Q

The alveolar crest is _____ with the lamina dura

A

continuous

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16
Q

What do the arrows represent in the following image?

A

alveolar crest

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17
Q

What does the arrow represent in the following image?

A

alveolar crest

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18
Q

How does the alveolar crest appear on a radiograph?

A

radiopaque

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19
Q

Appears as a radiolucent space between the tooth root and the lamina dura:

A

periodontal ligament space

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20
Q

How does the periodontal ligament space appear on a radiograph?

A

radiolucent space

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21
Q

When we see different widths of PDL space, what does this indicate?

A

This does not automatically indicate a pathogenic process, (unless we see caries and then we can assume) but typically just caused by angulation

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22
Q

Seen as a narrow radiolucency between the tooth root and the lamina dura:

A

PDL space

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23
Q

What do the arrows represent in the following image?

A

PDL space

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24
Q

What do the arrows represent in the following image?

A

PDL space

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25
Q

What may be seen when there is a convexity of the proximal surface of the root resulting in two heights of contour?

A

Double periodontal ligament space and lamina dura

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26
Q

A double PDL space and lamina dura may be seen when there is a ___ of the proximal surface of the root resulting in ____.

A

convexity; two heights of contour

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27
Q

What do the arrows represent in the following image?

A

a double PDL space and lamina dura

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28
Q

What lies between the cortical plates in both jaws?

A

Cancellous bone

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29
Q

Cancellous bone may also be referred to as:

A

trabecular bone

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30
Q

What type of bone appears in this image?

A

cancellous or trabecular bone

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31
Q

What does the arrow represent in this image? (radiopaque areas)

A

trabecular plates (cancellous bone)

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32
Q

What can be seen in the following image? (radiolucent areas)

A

marrow spaces

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33
Q

The nasal cavity is NOT a ____ it is a ____.

A

NOT a sinus; it is a nasal cavity

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34
Q

Label the blue bone in the following image?

A

superior nasal concha & middle nasal concha

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35
Q

Label the cream bone in the following image:

A

inferior nasal concha

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36
Q

Both the ___ & ___ nasal concha are part of the the ____ bone

A

superior & middle; ethmoid

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37
Q

Usually at or just below the junction of the inferior end of the nasal sputum and the inferior outline of the nasal aperture:

A

anterior nasal spine

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38
Q

Projection of bone where the two maxilla meet in the middle; midpoint floor of nasal cavity:

A

anterior nasal spine

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39
Q

What is the arrow pointing to in the following image?

A

anterior nasal spine

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40
Q

What does the arrow represent in the following image?

A

anterior nasal spine

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41
Q

What does the arrow represent in the following image?

A

anterior nasal spine

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42
Q

What does the arrow represent in the following image?

A

anterior nasal spine

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43
Q

The anterior nasal spine is always located between:

A

middle of #8 and #9

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44
Q

What does the arrow represent in the following image?

A

anterior nasal spine

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45
Q

What does the arrow represent in the following image?

A

anterior nasal spine

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46
Q

What does the arrow represent in the following image in the edentulous patient?

A

anterior nasal spine

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47
Q

Median suture =

A

intermaxillary suture

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48
Q

Extends from alveolar crest between #8 and #9 posteriorly to distal aspect of hard palate:

A

Intermaxillary suture

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49
Q

Describe the width and shape of the intermaxillary suture:

A

uniform width; variable shape

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50
Q

The shape of the inter maxillary suture varies based on:

A

angulation of central ray

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51
Q

What suture can be seen in this image?

A

intermaxillary suture

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52
Q

From an anterior view, the intermaxillary suture goes from ___ to ___

A

Anterior nasal spine to alveolar crest

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53
Q

What does the arrow represent in the following image?

A

intermaxillary suture

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54
Q

Radiographically, how does the inter maxillary suture appear?

A

radiolucent line

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55
Q

What does the arrow represent in the following image?

A

intermaxillary suture

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56
Q

What does the arrow represent in the following image?

A

intermaxillary suture

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57
Q

What does the arrow represent in the following image?

A

intermaxillary suture

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58
Q

What does the arrow represent in the following image?

A

intermaxillary suture

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59
Q

What does the arrow represent in the following image?

A

intermaxillary suture

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60
Q

What does the arrow represent in the following image?

A

widened inter maxillary suture (due to palatal expander)

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61
Q

Palatal expanders widen the:

A

intermaxillary suture

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62
Q

What does the arrow represent in the following image?

A

intermaxillary suture

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63
Q

Transmits nasopalatine nerves and vessels:

A

nasopalatine canal

64
Q

The nasopalatine canal terminates in the:

A

incisive foramen

65
Q

Two usually round or oval foramina in the floor of the nasal cavity:

A

entrance foramina

66
Q

The nasopalatine canal may not always be:

67
Q

The two radiolucent areas inside the nasal cavity represent:

A

entrance of nasopaltine canal

68
Q

What does the arrow represent in the following image?

A

nasopalatine canal

69
Q

What do the arrows represent in the following image?

A

superior foramina of nasopalatine canal

70
Q

The superior foramina of the nasopalatine canal (arrows) appear just lateral to the ___ and posterior to the ___

A

nasal septum; anterior nasal spine

71
Q

What d0 the arrows represent in the following image?

A

lateral walls of nasopalatine canal

72
Q

The lateral walls of the nasopalatine canal (arrows) extend from the ___ to the floor of the ___

A

incisive foramen; nasal foss

73
Q

What do the arrows represent in the following image?

A

entrance of the nasopalatine canals

74
Q

The nasopalatine canals exit the:

A

incisive foramen

75
Q

What does the arrow represent in the following image?

A

entrance of the nasopalatine canal

76
Q

What do the arrows represent in the following image?

A

nasopalatine canals

77
Q

Is the oral end of the nasopalatine canal:

A

incisive foramen

78
Q

Discuss the size, shape, and position of the incisive foramen:

A

variable size and shape; variable position due to x-ray beam angulation

79
Q

The incisive foramen can be seen in what type of x-ray?

A

anterior teeth PA

80
Q

What is the name of hole behind teeth 8&9?

A

incisive foramen

81
Q

Appears as an ovoid radiolucency between the roots of the central incisors:

A

incisive foramen

82
Q

What do the arrows represent in the following image?

A

incisive foramen

83
Q

What do the arrows represent in the following image?

A

incisive foramen

84
Q

What do the arrows represent in the following image?

A

incisive foramen

85
Q

What do the arrows represent in the following image?

A

incisive foramen

86
Q

What is the radiolucency in the following image?

A

incisive foramen

87
Q

Located above the oral cavity; floor is seen as a thin radiopaque line:

A

nasal cavity

88
Q

What do the arrows represent in the following image?

A

floor of nasal cavity

89
Q

The floor of the nasal cavity extends laterally from the:

A

anterior nasal spine

90
Q

What do the arrows represent in the following image?

A

floor of the nasal cavity

91
Q

What radiographs can the floor of the nasal cavity be seen in?

A

any radiograph taken of the maxilla

92
Q

What do the arrows represent in the following image?

A

floor of the nasal cavity

93
Q

The floor of the nasal cavity may often be superimposed over the:

A

maxillary sinus

94
Q

Differentiate between the maxillary sinus and floor of the nasal cavity:

A

navy: floor of nasal cavity
blue: maxillary sinus

95
Q

The intersection of the floor of the nasal cavity and maxillary sinus is referred to as:

A

inverted y

96
Q

Differentiate between the maxillary sinus and the floor of the nasal cavity:

A

navy = floor of nasal cavity
blue = maxillary sinus

97
Q

What do the arrows point to in the following image?

A

inferior nasal concha

98
Q

What do the arrows represent in the following image?

A

inferior nasal concha

99
Q

What is the difference between the inferior nasal concha/turbinate?

A

inferior nasal concha= bone

turbinate= bone + soft tissue

100
Q

What does the arrow represent in the following image?

A

nasal septum

101
Q

An air containing cavity lined with mucous membrane that may have an internal septa:

A

Maxillary sinus

102
Q

The borders of the maxillary sinus appear in ____ radiographs as a thin and radiopaque line

A

periapical

103
Q

What do the arrows represent in the following image?

A

inferior border of maxillary sinus

104
Q

The inferior border of the ____ appears as a thin radiopaque line near the apices of the maxillary premolars and molars

A

maxillary sinus

105
Q

Distinguish between the floor of the nasal cavity and the maxillary sinus in this image:

A

just discuss

106
Q

What do the arrows represent in the following image?

A

floor of maxillary sinus

107
Q

What do the arrows represent in the following image?

A

floor of maxillary sinus

108
Q

The floor of the maxillary sinus often extends toward the ___ in response to missing teeth

A

crest of the alveolar ridge

109
Q

What does the arrow represent in the following image?

A

septum in the maxillary sinus

110
Q

What do the arrows represent in the following image?

A

neurovascular canals in the wall of the maxillary sinus

111
Q

What do the arrows represent in the following image?

A

vascular canals in the maxillary sinus

112
Q

What doe the black arrows point to in the following image? What does the green arrow point to?

A

black: vascular canal within maxillary sinus
green: septum of maxillary sinus

113
Q

The inverted Y is formed by the:

A

nasal fossa and maxillary sinus

114
Q

The maxillary sinus is at the level of the:

The floor of the nasal cavity is at the level of the:

A

premolars

root apex of incisors

115
Q

The soft tissue of the tip of the nose can be seen in projections of the ___ , superimposed over the ___

A

maxillary incisors; roots

116
Q

What do the arrows represent in the following image?

A

soft tissue of the nose

117
Q

What is superimposed over the apices of the central incisors?

A

soft tissue of the nose

118
Q

Is the depression in the maxilla near the apex of the lateral incisor:

A

lateral fossa

119
Q

The lateral fossa is formed by a:

A

a depression in the maxilla (near apex of lateral incisor)

120
Q

The lateral fossa is seen between the:

A

lateral incisor and canine

121
Q

What can be seen in the following image?

A

lateral fossa

122
Q

What do the arrows represent in the following image?

A

lateral fossa

123
Q

Label the diffuse radiolucency seen in the region of the lateral incisor:

A

lateral fossa

124
Q

A diffuse radiolucency seen in the region of the lateral incisors:

A

lateral fossa

125
Q

Runs from the orbit inferiorly to the nasal canal:

A

nasolacrimal canal

126
Q

What does it mean if you can see the nasolacrimal canal in a radiograph?

A

it means you took a bad radiograph

127
Q

What does the arrow represent in this image?

A

nasolacrimal canal

128
Q

The nasolacrimal canal is occasionally seen when near the apex of the ___ when steep vertical angulation is used.

129
Q

Commonly seen as ovoid radiolucencies on maxillary occlusal projections

A

nasolacrimal canal

130
Q

An extension of the lateral maxillary surface that articulates with the maxillary process of the zygoma:

A

zygomatic process of the maxilla

131
Q

Area of the maxilla that articulates with the zygoma:

A

zygomatic process of the maxilla

132
Q

Seen in radiographs as a thick U-shaped radiopaque entity superimposed over the maxillary sinus:

A

zygomatic process of the maxilla

133
Q

What does the yellow area represent in the following image?

A

zygomatic process of the maxilla

134
Q

What do the arrows represent in the following image?

A

zygomatic process of the maxilla

135
Q

What do the arrows represent in the following image?

A

zygomatic process of the maxilla

136
Q

The zygomatic process of the maxilla protrudes laterally from the:

A

maxillary wall

137
Q

What do the arrows represent in the following image?

A

zygomatic process of the maxilla

138
Q

What bone can be seen in the following image?

139
Q

What do the arrows represent in the following image?

140
Q

What do the arrows represent in the following image?

141
Q

radiographically, an oblique line demarcating a region that appears to be covered by a veil of slight radiopacity:

A

nasolabial fold

142
Q

Frequently traverses periapical radiographs of the premolar region:

A

nasolabial fold

143
Q

What can be seen in the following image?

A

nasolabial fold

144
Q

What do the arrows represent in the following image?

A

nasolabial fold

145
Q

What is the soft tissue fold extending across the canine-premolar region?

A

nasolabial fold

146
Q

The most posterior part of the maxilla:

A

tuberosity

147
Q

What can be seen behind the molars in this image?

A

maxillary tuberosity

148
Q

What is the central U-shaped entity? what can be seen posterior to this?

A

maxillary sinus; maxillary tuberosity

149
Q

Lie immediately posterior to the tuberosity of the maxilla:

A

medial & lateral pterygoid plates

150
Q

What arises from the medial pterygoid plate?

A

hamular notch

151
Q

What are the yellow extensions in this image?

A

medial & lateral pterygoid plate

152
Q

What can be seen in this image?

A

hamular notch

153
Q

What does the arrow represent in the following image?

A

hamular notch

154
Q

What do the arrows represent in the following image? (located posterior to the maxillary tuberosity?

A

pterygoid plates

155
Q

What extends inferiorly from the medial pterygoid plate?

A

hamular notch

156
Q

What does the arrow represent in the following image?

A

hamular notch

Oral Radiology (21 decks)

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