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Oral Radiology > Intraoral anatomy- Maxillary (Exam 2) > Flashcards

Intraoral anatomy- Maxillary (Exam 2) 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 the dentin appear on a radiograph? Why?

A

Appears intermediate radiopaque because it is a mix between soft & mineralized tissue

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3
Q

Cortical bone attaching periodontal ligament to tooth:

A

Lamina dura

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4
Q

How does the lamina dura appear on a radiograph? 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 recent extraction 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 there is some sort of pathology (it may mean this but, it may also 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 a PDL space, what does this indicate?

A

This does not automatically indicate a pathogenic process (unless we see caries with it, 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

Periodontal ligament space

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23
Q

What do the arrows represent in the following image?

A

Periodontal ligament space

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24
Q

What do the arrows represent in the following image?

A

Periodontal ligament 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 PDL space & lamina dura

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26
Q

A double PDL space & 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 & 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 do the arrows represent in the following image?

(radiopaque areas)

A

Trabecular plates (cancellous bone)

(white spider web part)

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32
Q

What do the arrows represent in the following image?

(radiopaque areas)

A

Marrow spaces

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33
Q

The nasal cavity is NOT a _____, it is a _____

A

sinus; it is a nasal cavity

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34
Q

Label the blue bone in the following image:

A

Top part: superior nasal concha
Bottom part: 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 ______ and _____ nasal concha are part of the _____ bone

A

Superior & middle; ethmoid bone

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37
Q

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

A

Anterior nasal spine

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38
Q

Protection 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 the the following image?

A

Anterior nasal spine

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40
Q

What is the arrow pointing to the the following image?

A

Anterior nasal spine

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41
Q

What is the arrow pointing to the the following image?

A

Anterior nasal spine

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42
Q

What is the arrow pointing to the the following image?

A

Anterior nasal spine

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43
Q

What is the arrow pointing to the the following image?

A

Anterior nasal spine

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44
Q

The anterior nasal spine is always located between:

A

Middle of #8 & #9

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45
Q

What is the arrow pointing to the the following image?

A

anterior nasal spine

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46
Q

What is the arrow pointing to the the following image?

A

anterior nasal spine

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47
Q

What is the arrow pointing to the the following image?

A

anterior nasal spine (in edentulous patient)

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48
Q

Median suture=

A

Intermaxillary suture

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49
Q

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

A

Intermaxillary suture

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50
Q

Describe the width and shape of the intermaxillary suture:

A

-uniform width
-variable shape

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51
Q

The shape of the intermaxillary suture varies based on:

A

angulation of central ray

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52
Q

What suture can be seen in this image?

A

Intermaxillary suture

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53
Q

The intermaxillary suture (from an anterior view) goes from ____ to ____

A

anterior nasal spine to alveolar crest

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54
Q

What is the arrow pointing to the the following image?

A

Intermaxillary suture

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55
Q

What is the arrow pointing to the the following image?

A

Intermaxillary suture

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56
Q

The intermaxillary suture radiographically appears as:

A

A radiolucent line

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57
Q

What is the arrow pointing to the the following image?

A

Intermaxillary suture

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58
Q

What is the arrow pointing to the the following image?

A

Intermaxillary suture

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59
Q

What is the arrow pointing to the the following image?

A

Intermaxillary suture

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60
Q

What is the arrow pointing to the the following image?

A

Intermaxillary suture

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61
Q

What can be seen in the following image?

A

Widened intermaxillary suture (due to palatal expander)

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62
Q

Palatal expanders widen the:

A

Intermaxillary suture

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63
Q

What can be seen in the following image?

A

Intermaxillary suture

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64
Q

Transmits nasopalatine nerves & vessels:

A

Nasopalatine canal

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65
Q

The nasopalatine canal terminates in the:

A

Incisive foramen

66
Q

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

A

Entrance foramina

67
Q

The nasopalatine canal may not always be:

68
Q

Two radiolucent areas inside the nasal cavity represent the:

A

Entrance of the nasopalatine canal

69
Q

What are the arrows pointing to the the following image?

A

Nasopalatine canal

70
Q

What are the arrows pointing to the the following image?

A

Superior foramina of the nasopalatine canal

71
Q

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

A

Nasal septum; anterior nasal spine

72
Q

What are the arrows pointing to the the following image?

A

Lateral walls of nasopalatine canal

73
Q

The lateral walls the nasopalatine canal extend from the _____ to the floor of the _____

A

incisive foramen; nasal fossa

74
Q

What are the arrows pointing to the the following image?

A

Entrance of the nasopalatine canals

75
Q

The nasopalatine canals exit the:

A

Incisive foramen

76
Q

What is the arrow pointing to the the following image?

A

entrance of the nasopalatine canal

77
Q

What are the arrows pointing to the the following image?

A

Nasopalatine canals

78
Q

Is the oral end of the nasopalatine canal:

A

Incisive foramen

79
Q

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

A

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

80
Q

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

A

Anterior teeth PA

81
Q

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

A

Incisive forman

82
Q

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

A

Incisive foramen

83
Q

What are the arrows pointing to the the following image?

A

Incisive foramen

84
Q

What are the arrows pointing to the the following image?

A

Incisive foramen

85
Q

What are the arrows pointing to the the following image?

A

Incisive foramen

86
Q

What are the arrows pointing to the the following image?

A

Incisive foramen

87
Q

What does the radiolucency in the following image represent?

A

Incisive foramen

88
Q

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

A

Nasal cavity

89
Q

What are the arrows pointing to the the following image?

A

Floor of nasal cavity

90
Q

What are the arrows pointing to the the following image?

A

Floor of nasal cavity

91
Q

The floor of the nasal cavity extends laterally from the:

A

anterior nasal spine

92
Q

The floor of the nasal cavity extends posteriorly from the:

A

anterior nasal spine

93
Q

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

A

Any radiograph taken of the maxilla

94
Q

What are the arrows pointing to the the following image?

A

Floor of nasal cavity

95
Q

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

A

Maxillary sinus

96
Q

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

A

Navy: floor of nasal cavity
Blue: floor of maxillary sinus

97
Q

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

A

Inverted y

98
Q

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

A

Navy: floor of nasal cavity
Blue: floor of maxillary sinus

99
Q

What are the arrows pointing to the the following image?

A

Inferior nasal concha

100
Q

What are the arrows pointing to the the following image?

A

Inferior nasal concha

101
Q

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

A

Inferior nasal concha= just the bone
Turbinate= bone + soft tissue

102
Q

What is the arrow pointing to the the following image?

A

Nasal septum

103
Q

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

A

maxillary sinus

104
Q

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

A

periapical radiographs

105
Q

What are the arrows pointing to the the following image?

A

inferior border of maxillary sinus

106
Q

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

A

Maxillary sinus

107
Q

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

A

Just discuss

108
Q

What are the arrows pointing to the the following image?

A

Floor of maxillary sinus

109
Q

What are the arrows pointing to the the following image?

A

Floor of maxillary sinus

110
Q

The floor of the maxillary sinus often extends towards the ____ in response to missing teeth

A

crest of alveolar ridge

111
Q

What is the arrow pointing to the the following image?

A

Septum in maxillary sinus

112
Q

What are the arrows pointing to the the following image?

A

Neuromuscular canals in the wall of the maxillary sinus

113
Q

What are the arrows pointing to the the following image?

A

Vascular canal within the maxillary sinus

114
Q

What do the black arrows point to in the following image?

What does the green arrow point to in the following image?

A

Black: vascular canal within maxillary sinus
Green: septum in maxillary sinus

115
Q

The inverted y is formed by the:

A

nasal fossa & maxillary sinus

116
Q

The maxillary sinus is at the level of the:

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

A

Premolars

Incisors

117
Q

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

A

maxillary incisors; roots

118
Q

What are the arrows pointing to the the following image?

A

Soft tissue of the nose

119
Q

What is superimposed over the apices of the central incisors:

A

Soft tissue of the nose

120
Q

Depression in the maxillary near the apex of the lateral incisor:

A

Lateral fossa

121
Q

The lateral fossa is formed by:

A

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

122
Q

What can be seen in the following image?

A

Lateral fossa

123
Q

The lateral fossa is seen between the:

A

Lateral incisor and canine

124
Q

What are the arrows pointing to the the following image?

A

Lateral fossa

125
Q

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

A

Lateral fossa

126
Q

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

A

Lateral fossa

127
Q

Runs from the orbit inferiorly to the nasal cavity:

A

Nasolacrimal canal

128
Q

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

A

It means you took a bad radiograph

129
Q

What is the arrow pointing to the the following image?

A

Nasolacrimal canal

130
Q

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

131
Q

Commonly seen as ovoid radiolucencies on maxillary occlusal projections:

A

Nasolacrimal canals

132
Q

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

A

Zygomatic process of the maxilla

133
Q

Area of the maxilla that articulates with the zygoma:

A

Zygomatic process of the maxilla

134
Q

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

A

Zygomatic process of the maxilla

135
Q

What does the yellow area represent in the following image?

A

Zygomatic process of the maxilla

136
Q

What are the arrows pointing to the the following image?

A

Zygomatic process of the maxilla

137
Q

What are the arrows pointing to the the following image?

A

Zygomatic process of the maxilla

138
Q

The zygomatic process of the maxilla protrudes laterally from the:

A

Maxillary wall

139
Q

What are the arrows pointing to the the following image?

A

Zygomatic process of the maxilla

140
Q

What bone can be seen in the following image:

141
Q

What are the arrows pointing to the the following image?

142
Q

What are the arrows pointing to the the following image?

143
Q

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

A

Nasolabial fold

144
Q

Frequently traverses periapial radiographs of the premolar region:

A

Nasolabial fold

145
Q

What can be seen in the following image:

A

Nasolabial fold

146
Q

What are the arrows pointing to the the following image?

A

nasolabial fold

147
Q

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

A

Nasolabial fold

148
Q

The most posterior part of the maxilla?

A

Maxillary tuberosity

149
Q

What can be seen posterior to the molars?

A

Maxillary tuberosity

150
Q

What can be seen behind the molars in this image?

A

Maxillary tuberosity

151
Q

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

A

Maxillary sinus; maxillary tuberosity

152
Q

Lie immediately posterior to the tuberosity of the maxilla:

A

Medial & lateral pterygoid plates

153
Q

What arises from the medial pterygoid plates?

A

Hamular notch

154
Q

What are the yellow extensions in the following image?

A

Medial & lateral pterygoid plates

155
Q

What are the yellow extensions in the following image?

A

Medial & lateral pterygoid plates

156
Q

What can be seen in the following image?

A

Hamular notch

157
Q

What does the arrow represent in the following image?

A

Hamular notch

158
Q

What can be represented by the arrows in this image?

(located posterior to the maxillary tuberosity)

A

Maxillary tuberosity

159
Q

What extends inferiorly from the medial pterygoid plate?

A

Hamular notch

160
Q

What does the arrow represent in the following image?

A

Hamular notch

Oral Radiology (21 decks)

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