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
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
3
Q
The cortical bone attaching PDL to tooth:
A
Lamina dura
4
Q
How does the lamina dura appear radiographically? 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 recently extracted tooth (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 that there is some sort of pathology (it may mean that, but it also may 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 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
22
Q
Seen as a narrow radiolucency between the tooth root and the lamina dura:
A
PDL space
23
Q
What do the arrows represent in the following image?
A
PDL space
24
Q
What do the arrows represent in the following image?
A
PDL 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 periodontal ligament space and lamina dura
26
A double PDL space and 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 and 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 does the arrow represent in this image? (radiopaque areas)
trabecular plates (cancellous bone)
32
What can be seen in the following image? (radiolucent areas)
marrow spaces
33
The nasal cavity is NOT a ____ it is a ____.
NOT a sinus; it is a nasal cavity
34
Label the blue bone in the following image?
superior nasal concha & middle nasal concha
35
Label the cream bone in the following image:
inferior nasal concha
36
Both the ___ & ___ nasal concha are part of the the ____ bone
superior & middle; ethmoid
37
Usually at or just below the junction of the inferior end of the nasal sputum and the inferior outline of the nasal aperture:
anterior nasal spine
38
Projection 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 in the following image?
anterior nasal spine
40
What does the arrow represent in the following image?
anterior nasal spine
41
What does the arrow represent in the following image?
anterior nasal spine
42
What does the arrow represent in the following image?
anterior nasal spine
43
The anterior nasal spine is always located between:
middle of #8 and #9
44
What does the arrow represent in the following image?
anterior nasal spine
45
What does the arrow represent in the following image?
anterior nasal spine
46
What does the arrow represent in the following image in the edentulous patient?
anterior nasal spine
47
Median suture =
intermaxillary suture
48
Extends from alveolar crest between #8 and #9 posteriorly to distal aspect of hard palate:
Intermaxillary suture
49
Describe the width and shape of the intermaxillary suture:
uniform width; variable shape
50
The shape of the inter maxillary suture varies based on:
angulation of central ray
51
What suture can be seen in this image?
intermaxillary suture
52
From an anterior view, the intermaxillary suture goes from ___ to ___
Anterior nasal spine to alveolar crest
53
What does the arrow represent in the following image?
intermaxillary suture
54
Radiographically, how does the inter maxillary suture appear?
radiolucent line
55
What does the arrow represent in the following image?
intermaxillary suture
56
What does the arrow represent in the following image?
intermaxillary suture
57
What does the arrow represent in the following image?
intermaxillary suture
58
What does the arrow represent in the following image?
intermaxillary suture
59
What does the arrow represent in the following image?
intermaxillary suture
60
What does the arrow represent in the following image?
widened inter maxillary suture (due to palatal expander)
61
Palatal expanders widen the:
intermaxillary suture
62
What does the arrow represent in the following image?
intermaxillary suture
63
Transmits nasopalatine nerves and vessels:
nasopalatine canal
64
The nasopalatine canal terminates in the:
incisive foramen
65
Two usually round or oval foramina in the floor of the nasal cavity:
entrance foramina
66
The nasopalatine canal may not always be:
seen
67
The two radiolucent areas inside the nasal cavity represent:
entrance of nasopaltine canal
68
What does the arrow represent in the following image?
nasopalatine canal
69
What do the arrows represent in the following image?
superior foramina of nasopalatine canal
70
The superior foramina of the nasopalatine canal (arrows) appear just lateral to the ___ and posterior to the ___
nasal septum; anterior nasal spine
71
What d0 the arrows represent in the following image?
lateral walls of nasopalatine canal
72
The lateral walls of the nasopalatine canal (arrows) extend from the ___ to the floor of the ___
incisive foramen; nasal foss
73
What do the arrows represent in the following image?
entrance of the nasopalatine canals
74
The nasopalatine canals exit the:
incisive foramen
75
What does the arrow represent in the following image?
entrance of the nasopalatine canal
76
What do the arrows represent in the following image?
nasopalatine canals
77
Is the oral end of the nasopalatine canal:
incisive foramen
78
Discuss the size, shape, and position of the incisive foramen:
variable size and shape; variable position due to x-ray beam angulation
79
The incisive foramen can be seen in what type of x-ray?
anterior teeth PA
80
What is the name of hole behind teeth 8&9?
incisive foramen
81
Appears as an ovoid radiolucency between the roots of the central incisors:
incisive foramen
82
What do the arrows represent in the following image?
incisive foramen
83
What do the arrows represent in the following image?
incisive foramen
84
What do the arrows represent in the following image?
incisive foramen
85
What do the arrows represent in the following image?
incisive foramen
86
What is the radiolucency in the following image?
incisive foramen
87
Located above the oral cavity; floor is seen as a thin radiopaque line:
nasal cavity
88
What do the arrows represent in the following image?
floor of nasal cavity
89
The floor of the nasal cavity extends laterally from the:
anterior nasal spine
90
What do the arrows represent in the following image?
floor of the nasal cavity
91
What radiographs can the floor of the nasal cavity be seen in?
any radiograph taken of the maxilla
92
What do the arrows represent in the following image?
floor of the nasal cavity
93
The floor of the nasal cavity may often be superimposed over the:
maxillary sinus
94
Differentiate between the maxillary sinus and floor of the nasal cavity:
navy: floor of nasal cavity
blue: maxillary sinus
95
The intersection of the floor of the nasal cavity and maxillary sinus is referred to as:
inverted y
96
Differentiate between the maxillary sinus and the floor of the nasal cavity:
navy = floor of nasal cavity
blue = maxillary sinus
97
What do the arrows point to in the following image?
inferior nasal concha
98
What do the arrows represent in the following image?
inferior nasal concha
99
What is the difference between the inferior nasal concha/turbinate?
inferior nasal concha= bone
turbinate= bone + soft tissue
100
What does the arrow represent in the following image?
nasal septum
101
An air containing cavity lined with mucous membrane that may have an internal septa:
Maxillary sinus
102
The borders of the maxillary sinus appear in ____ radiographs as a thin and radiopaque line
periapical
103
What do the arrows represent in the following image?
inferior border of maxillary sinus
104
The inferior border of the ____ appears as a thin radiopaque line near the apices of the maxillary premolars and molars
maxillary sinus
105
Distinguish between the floor of the nasal cavity and the maxillary sinus in this image:
just discuss
106
What do the arrows represent in the following image?
floor of maxillary sinus
107
What do the arrows represent in the following image?
floor of maxillary sinus
108
The floor of the maxillary sinus often extends toward the ___ in response to missing teeth
crest of the alveolar ridge
109
What does the arrow represent in the following image?
septum in the maxillary sinus
110
What do the arrows represent in the following image?
neurovascular canals in the wall of the maxillary sinus
111
What do the arrows represent in the following image?
vascular canals in the maxillary sinus
112
What doe the black arrows point to in the following image? What does the green arrow point to?
black: vascular canal within maxillary sinus
green: septum of maxillary sinus
113
The inverted Y is formed by the:
nasal fossa and maxillary sinus
114
The maxillary sinus is at the level of the:
The floor of the nasal cavity is at the level of the:
premolars
root apex of incisors
115
The soft tissue of the tip of the nose can be seen in projections of the ___ , superimposed over the ___
maxillary incisors; roots
116
What do the arrows represent in the following image?
soft tissue of the nose
117
What is superimposed over the apices of the central incisors?
soft tissue of the nose
118
Is the depression in the maxilla near the apex of the lateral incisor:
lateral fossa
119
The lateral fossa is formed by a:
a depression in the maxilla (near apex of lateral incisor)
120
The lateral fossa is seen between the:
lateral incisor and canine
121
What can be seen in the following image?
lateral fossa
122
What do the arrows represent in the following image?
lateral fossa
123
Label the diffuse radiolucency seen in the region of the lateral incisor:
lateral fossa
124
A diffuse radiolucency seen in the region of the lateral incisors:
lateral fossa
125
Runs from the orbit inferiorly to the nasal canal:
nasolacrimal canal
126
What does it mean if you can see the nasolacrimal canal in a radiograph?
it means you took a bad radiograph
127
What does the arrow represent in this image?
nasolacrimal canal
128
The nasolacrimal canal is occasionally seen when near the apex of the ___ when steep vertical angulation is used.
canine
129
Commonly seen as ovoid radiolucencies on maxillary occlusal projections
nasolacrimal canal
130
An extension of the lateral maxillary surface that articulates with the maxillary process of the zygoma:
zygomatic process of the maxilla
131
Area of the maxilla that articulates with the zygoma:
zygomatic process of the maxilla
132
Seen in radiographs as a thick U-shaped radiopaque entity superimposed over the maxillary sinus:
zygomatic process of the maxilla
133
What does the yellow area represent in the following image?
zygomatic process of the maxilla
134
What do the arrows represent in the following image?
zygomatic process of the maxilla
135
What do the arrows represent in the following image?
zygomatic process of the maxilla
136
The zygomatic process of the maxilla protrudes laterally from the:
maxillary wall
137
What do the arrows represent in the following image?
zygomatic process of the maxilla
138
What bone can be seen in the following image?
zygoma
139
What do the arrows represent in the following image?
zygoma
140
What do the arrows represent in the following image?
zygoma
141
radiographically, an oblique line demarcating a region that appears to be covered by a veil of slight radiopacity:
nasolabial fold
142
Frequently traverses periapical radiographs of the premolar region:
nasolabial fold
143
What can be seen in the following image?
nasolabial fold
144
What do the arrows represent in the following image?
nasolabial fold
145
What is the soft tissue fold extending across the canine-premolar region?
nasolabial fold
146
The most posterior part of the maxilla:
tuberosity
147
What can be seen behind the molars in this image?
maxillary tuberosity
148
What is the central U-shaped entity? what can be seen posterior to this?
maxillary sinus; maxillary tuberosity
149
Lie immediately posterior to the tuberosity of the maxilla:
medial & lateral pterygoid plates
150
What arises from the medial pterygoid plate?
hamular notch
151
What are the yellow extensions in this image?
medial & lateral pterygoid plate
152
What can be seen in this image?
hamular notch
153
What does the arrow represent in the following image?
hamular notch
154
What do the arrows represent in the following image? (located posterior to the maxillary tuberosity?
pterygoid plates
155
What extends inferiorly from the medial pterygoid plate?
hamular notch
156
What does the arrow represent in the following image?
hamular notch
157
