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
2
Q
How does the dentin appear on a radiograph? Why?
A
Appears intermediate radiopaque because it is a mix between soft & mineralized tissue
3
Q
Cortical bone attaching periodontal ligament to tooth:
A
Lamina dura
4
Q
How does the lamina dura appear on a radiograph? Why?
A
Appears radiopaque because its very dense
5
Q
Space between the lamina dura and tooth:
A
Ligament space
6
Q
The teeth sockets are bounded by a thin, radiopaque layer of dense bone called the:
A
Lamina dura
7
Q
What do the arrows represent in the following image?
A
Lamina dura
8
Q
Describe what can be seen in the following image:
A
Lamina dura around a recent extraction socket
9
Q
What kind of bone comprises the lamina dura?
A
cortical bone
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)
11
Q
The gingival margin of the alveolar process between teeth (radiopaque line):
A
Alveolar crest
12
Q
The lamina dura should be continuous with:
A
the alveolar crest
13
Q
The top area of the alveolar process:
A
Alveolar crest
14
Q
Seen as cortical borders of the alveolar bone:
A
Alveolar crest
15
Q
The alveolar crest is _____ with the lamina dura
A
continuous
16
Q
What do the arrows represent in the following image?
A
Alveolar crest
17
Q
What does the arrow represent in the following image?
A
Alveolar crest
18
Q
How does the alveolar crest appear on a radiograph?
A
Radiopaque
19
Q
Appears as a radiolucent space between the tooth root and the lamina dura”
A
Periodontal ligament space
20
Q
How does the periodontal ligament space appear on a radiograph?
A
Radiolucent space
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
22
Q
Seen as a narrow radiolucency between the tooth root and the lamina dura:
A
Periodontal ligament space
23
Q
What do the arrows represent in the following image?
A
Periodontal ligament space
24
Q
What do the arrows represent in the following image?
A
Periodontal ligament space
25
What may be seen when there is a convexity of the proximal surface of the root resulting in two heights of contour?
Double PDL space & lamina dura
26
A double PDL space & lamina dura may be seen when there is a _____ of the proximal surface of the root resulting in _____
Convexity; two heights of contour
27
What do the arrows represent in the following image?
A double PDL space & lamina dura
28
what lies between the cortical plates in both jaws?
Cancellous bone
29
Cancellous bone may also be referred to as:
Trabecular bone
30
What type of bone appears in this image?
Cancellous or trabecular bone
31
What do the arrows represent in the following image?
(radiopaque areas)
Trabecular plates (cancellous bone)
(white spider web part)
32
What do the arrows represent in the following image?
(radiopaque areas)
Marrow spaces
33
The nasal cavity is NOT a _____, it is a _____
sinus; it is a nasal cavity
34
Label the blue bone in the following image:
Top part: superior nasal concha
Bottom part: middle nasal concha
35
Label the cream bone in the following image:
Inferior nasal concha
36
Both the ______ and _____ nasal concha are part of the _____ bone
Superior & middle; ethmoid bone
37
Usually at or just below the junction of the inferior end of the nasal septum and the inferior outline of the nasal aperture:
Anterior nasal spine
38
Protection of bone where the two maxilla meet in the middle; midpoint floor of nasal cavity:
anterior nasal spine
39
What is the arrow pointing to the the following image?
Anterior nasal spine
40
What is the arrow pointing to the the following image?
Anterior nasal spine
41
What is the arrow pointing to the the following image?
Anterior nasal spine
42
What is the arrow pointing to the the following image?
Anterior nasal spine
43
What is the arrow pointing to the the following image?
Anterior nasal spine
44
The anterior nasal spine is always located between:
Middle of #8 & #9
45
What is the arrow pointing to the the following image?
anterior nasal spine
46
What is the arrow pointing to the the following image?
anterior nasal spine
47
What is the arrow pointing to the the following image?
anterior nasal spine (in edentulous patient)
48
Median suture=
Intermaxillary suture
49
Extends from alveolar crest between #8 & #9 posteriorly to distal aspect of hard palate:
Intermaxillary suture
50
Describe the width and shape of the intermaxillary suture:
-uniform width
-variable shape
51
The shape of the intermaxillary suture varies based on:
angulation of central ray
52
What suture can be seen in this image?
Intermaxillary suture
53
The intermaxillary suture (from an anterior view) goes from ____ to ____
anterior nasal spine to alveolar crest
54
What is the arrow pointing to the the following image?
Intermaxillary suture
55
What is the arrow pointing to the the following image?
Intermaxillary suture
56
The intermaxillary suture radiographically appears as:
A radiolucent line
57
What is the arrow pointing to the the following image?
Intermaxillary suture
58
What is the arrow pointing to the the following image?
Intermaxillary suture
59
What is the arrow pointing to the the following image?
Intermaxillary suture
60
What is the arrow pointing to the the following image?
Intermaxillary suture
61
What can be seen in the following image?
Widened intermaxillary suture (due to palatal expander)
62
Palatal expanders widen the:
Intermaxillary suture
63
What can be seen in the following image?
Intermaxillary suture
64
Transmits nasopalatine nerves & vessels:
Nasopalatine canal
65
The nasopalatine canal terminates in the:
Incisive foramen
66
Two usually round or oval foramina in the floor of the nasal cavity:
Entrance foramina
67
The nasopalatine canal may not always be:
seen
68
Two radiolucent areas inside the nasal cavity represent the:
Entrance of the nasopalatine canal
69
What are the arrows pointing to the the following image?
Nasopalatine canal
70
What are the arrows pointing to the the following image?
Superior foramina of the nasopalatine canal
71
The superior foramina of the nasopalatine canal (arrows) appear just lateral to the _____ and posterior to the ____
Nasal septum; anterior nasal spine
72
What are the arrows pointing to the the following image?
Lateral walls of nasopalatine canal
73
The lateral walls the nasopalatine canal extend from the _____ to the floor of the _____
incisive foramen; nasal fossa
74
What are the arrows pointing to the the following image?
Entrance of the nasopalatine canals
75
The nasopalatine canals exit the:
Incisive foramen
76
What is the arrow pointing to the the following image?
entrance of the nasopalatine canal
77
What are the arrows pointing to the the following image?
Nasopalatine canals
78
Is the oral end of the nasopalatine canal:
Incisive foramen
79
Discuss the size, shape, and position of the incisive foramen:
Variable size and shape; variable position due to X-ray beam angulation
80
The incisive foramen can be seen in what type of x-ray?
Anterior teeth PA
81
What is the name of the hole behind teeth 8&9?
Incisive forman
82
Appears as an ovoid radiolucency between the roots of the central incisors:
Incisive foramen
83
What are the arrows pointing to the the following image?
Incisive foramen
84
What are the arrows pointing to the the following image?
Incisive foramen
85
What are the arrows pointing to the the following image?
Incisive foramen
86
What are the arrows pointing to the the following image?
Incisive foramen
87
What does the radiolucency in the following image represent?
Incisive foramen
88
Located above the oral cavity; floor is seen as thin radiopaque line:
Nasal cavity
89
What are the arrows pointing to the the following image?
Floor of nasal cavity
90
What are the arrows pointing to the the following image?
Floor of nasal cavity
91
The floor of the nasal cavity extends laterally from the:
anterior nasal spine
92
The floor of the nasal cavity extends posteriorly from the:
anterior nasal spine
93
What radiographs can the floor of the nasal cavity be seen in?
Any radiograph taken of the maxilla
94
What are the arrows pointing to the the following image?
Floor of nasal cavity
95
The floor of the nasal cavity may often be superimposed over the:
Maxillary sinus
96
Differentiate between the maxillary sinus and floor of the nasal cavity:
Navy: floor of nasal cavity
Blue: floor of maxillary sinus
97
The intersection of the floor of the nasal cavity & maxillary sinus is referred to as:
Inverted y
98
Differentiate between the maxillary sinus and floor of the nasal cavity:
Navy: floor of nasal cavity
Blue: floor of maxillary sinus
99
What are the arrows pointing to the the following image?
Inferior nasal concha
100
What are the arrows pointing to the the following image?
Inferior nasal concha
101
What is the difference between the inferior nasal concha and the turbinate?
Inferior nasal concha= just the bone
Turbinate= bone + soft tissue
102
What is the arrow pointing to the the following image?
Nasal septum
103
An air-containing cavity lined with mucous membrane that may have an internal septa:
maxillary sinus
104
The borders of the maxillary sinus appear in ______ radiographs as a thin and radiopaque line
periapical radiographs
105
What are the arrows pointing to the the following image?
inferior border of maxillary sinus
106
The inferior border of the ______ appears as a thin radiopaque line near the apices of the maxillary premolars and molars:
Maxillary sinus
107
Distinguish between the floor of the nasal cavity and the maxillary sinus in this image:
Just discuss
108
What are the arrows pointing to the the following image?
Floor of maxillary sinus
109
What are the arrows pointing to the the following image?
Floor of maxillary sinus
110
The floor of the maxillary sinus often extends towards the ____ in response to missing teeth
crest of alveolar ridge
111
What is the arrow pointing to the the following image?
Septum in maxillary sinus
112
What are the arrows pointing to the the following image?
Neuromuscular canals in the wall of the maxillary sinus
113
What are the arrows pointing to the the following image?
Vascular canal within the maxillary sinus
114
What do the black arrows point to in the following image?
What does the green arrow point to in the following image?
Black: vascular canal within maxillary sinus
Green: septum in maxillary sinus
115
The inverted y is formed by the:
nasal fossa & maxillary sinus
116
The maxillary sinus is at the level of the:
The floor of the nasal cavity is at the level of the:
Premolars
Incisors
117
The soft tissue of the tip of the nose can be seen in projections of the _____, superimposed over the _____
maxillary incisors; roots
118
What are the arrows pointing to the the following image?
Soft tissue of the nose
119
What is superimposed over the apices of the central incisors:
Soft tissue of the nose
120
Depression in the maxillary near the apex of the lateral incisor:
Lateral fossa
121
The lateral fossa is formed by:
A depression in the maxilla (near apex of lateral incisor)
122
What can be seen in the following image?
Lateral fossa
123
The lateral fossa is seen between the:
Lateral incisor and canine
124
What are the arrows pointing to the the following image?
Lateral fossa
125
Label the diffuse radiolucency seen in the region of the lateral incisors:
Lateral fossa
126
A diffuse radiolucency seen in the region of the lateral incisors:
Lateral fossa
127
Runs from the orbit inferiorly to the nasal cavity:
Nasolacrimal canal
128
What does it mean if you can see the nasolacrimal canal in a radiograph?
It means you took a bad radiograph
129
What is the arrow pointing to the the following image?
Nasolacrimal canal
130
The nasolacrimal canal is occasionally seen near the apex of the ______ when steep vertical angulation is used
canine
131
Commonly seen as ovoid radiolucencies on maxillary occlusal projections:
Nasolacrimal canals
132
An extension of the lateral maxillary surface that articulates with the maxillary process of the zygoma:
Zygomatic process of the maxilla
133
Area of the maxilla that articulates with the zygoma:
Zygomatic process of the maxilla
134
Seen in radiographs as a thick U-shaped radiopaque entity superimposed over the maxillary sinus:
Zygomatic process of the maxilla
135
What does the yellow area represent in the following image?
Zygomatic process of the maxilla
136
What are the arrows pointing to the the following image?
Zygomatic process of the maxilla
137
What are the arrows pointing to the the following image?
Zygomatic process of the maxilla
138
The zygomatic process of the maxilla protrudes laterally from the:
Maxillary wall
139
What are the arrows pointing to the the following image?
Zygomatic process of the maxilla
140
What bone can be seen in the following image:
Zygoma
141
What are the arrows pointing to the the following image?
Zygoma
142
What are the arrows pointing to the the following image?
Zygoma
143
Radiographically, an oblique line demarcating a region that appears to be covered by a veil of slight radiopacity:
Nasolabial fold
144
Frequently traverses periapial radiographs of the premolar region:
Nasolabial fold
145
What can be seen in the following image:
Nasolabial fold
146
What are the arrows pointing to the the following image?
nasolabial fold
147
What is the soft tissue fold extending across the canine-premolar region?
Nasolabial fold
148
The most posterior part of the maxilla?
Maxillary tuberosity
149
What can be seen posterior to the molars?
Maxillary tuberosity
150
What can be seen behind the molars in this image?
Maxillary tuberosity
151
What is the central U-shaped entity, and what can be seen posterior to this?
Maxillary sinus; maxillary tuberosity
152
Lie immediately posterior to the tuberosity of the maxilla:
Medial & lateral pterygoid plates
153
What arises from the medial pterygoid plates?
Hamular notch
154
What are the yellow extensions in the following image?
Medial & lateral pterygoid plates
155
What are the yellow extensions in the following image?
Medial & lateral pterygoid plates
156
What can be seen in the following image?
Hamular notch
157
What does the arrow represent in the following image?
Hamular notch
158
What can be represented by the arrows in this image?
(located posterior to the maxillary tuberosity)
Maxillary tuberosity
159
What extends inferiorly from the medial pterygoid plate?
Hamular notch
160
What does the arrow represent in the following image?
Hamular notch
