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Radiology > Maxillary Intraoral Anatomy > Flashcards

Maxillary Intraoral Anatomy Flashcards

(132 cards)

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1
Q

The radiographic recognition of
disease, requires a sound knowledge of the ___________ appearance of normal structures

A

radiographic

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2
Q

What is the lamina dura?

A

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

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3
Q

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

A

lamina dura

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4
Q

Why does the lamina dura look more radiopaque?

A

tooth is constantly pulling on it (causing stimulus)

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5
Q

What are the parts of the tooth?

A
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6
Q
A

lamina dura

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7
Q
A

lamina dura

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8
Q

What is the PDL space?

A

space between the root of the tooth and the lamina dura

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9
Q

What is the part of bone that is attached to the cementum by fibers?

A

lamina dura

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10
Q

What is the lamina dura continuous with?

A

alveolar crest

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11
Q

List the parts of the tooth from the most radiopaque to least?

A

enamel, dentin, pulp

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12
Q

What is the alveolar crest?

A

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

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13
Q

What is the gingival margin of the alveolar process between teeth?

A

alveolar crest

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14
Q
A

alveolar crest

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15
Q

The alveolar crests (arrows) are seen as _______ borders of the alveolar bone

A

cortical

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16
Q

What do we want to see on the radiograph?

A

1-2 millimeters between alveolar crest and CEJ is healthy

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17
Q
A

alveolar crest

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18
Q

What is the periodontal ligament space?

A

It appears as a radiolucent space between the tooth root and the lamina dura.

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19
Q

What appears as a radiolucent space between the tooth root and the lamina dura?

A

periodontal ligament space

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20
Q
A

periodontal ligament space

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21
Q
A

periodontal ligament space

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22
Q
A

double periodontal ligament space

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23
Q

Why can you see a double PDL space sometimes?

A

A double periodontal ligament space and lamina dura may be seen when there is a convexity of the proximal surface of the root resulting in two heights of contour

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24
Q

What is another name for cancellous bone?

A

trabecular bone

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25
The __________ bone lies between the cortical plates in both jaws
cancellous
26
Inside the trabeculation there is a ___________ space
medullary (for blood vessels, nerves, etc.)
27
marrow spaces (medullary space)
28
trabecular plates
29
What bone 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
30
Where is the anterior nasal spine?
It is usually at or just below the junction of the inferior end of the nasal septum and the inferior outline of the nasal aperture.
31
anterior nasal spine
32
anterior nasal spine
33
What is in red?
septum
34
What is in yellow?
floor of the nasal cavity
35
What is in green?
anterior nasal spine
36
anterior nasal spine
37
anterior nasal spine
38
anterior nasal spine
39
What is the intermaxillary suture?
Extends from alveolar crest between #8 and #9 posteriorly to distal aspect of hard palate
40
What extends from alveolar crest between #8 and #9 posteriorly to distal aspect of hard palate?
intermaxillary suture
41
What is another name for the intermaxillary suture?
median suture
42
Is the intermaxillary suture radiolucent or radiopaque?
radiolucent
43
intermaxillary suture
44
intermaxillary suture
45
intermaxillary suture
46
intermaxillary suture
47
intermaxillary suture
48
intermaxillary suture
49
What is the nasopalatine canal?
▪ Transmits nasopalatine nerves and vessels ▪ Terminates in incisive foramen
50
Nasopalatine canal
51
What is the entrance foramine for the nasopalatine canal?
two usually round or oval foramina in the floor of the nasal cavity
52
superior foramina of the nasopalatine canal
53
nasopalatine canal
54
nasopalatine canal
55
superior foramina of the nasopalatine canal
56
nasopalatine canal
57
nasopalatine canal
58
What are the green arrows?
nasopalatine canal
59
nasopalatine canal
60
What is the green?
nasopalatine canal
61
What is the yellow?
incisive foramen
62
What is the incisive foramen?
the oral end of the nasopalatine canal
63
incisive foramen
64
incisive foramen
65
The incisive foramen appears as an ovoid _____________ between the roots of the central incisors
radiolucency
66
incisive foramen
67
incisive foramen
68
incisive foramen
69
What is the nasal cavity?
▪ Is located above the oral cavity ▪Its floor is seen as a thin radiopaque line
70
nasal cavity
71
floor of the nasal cavity
72
What is blue?
inverted y (switch from nasal cavity to maxillary sinus)
73
What is yellow?
maxillary sinus
74
What is white arrows?
floor of the nasal cavity
75
floor of the nasal cavity
76
floor of the nasal cavity
77
floor of maxillary sinus
78
How can you tell the difference between floor maxillary sinus and floor of nasal cavity?
*nasal cavity - straight line (by premolars) *maxillary sinus - wavey line (by molars)
79
What is yellow?
inverted y
80
What is light blue?
floor of maxillary sinus
81
What is dark blue/navy?
floor of nasal cavity
82
inferior nasal cocha/turbinate
83
Green arrows
inferior concha
84
nasal septum
85
What is the maxillary sinus?
▪ Is an air-containing cavity lined with mucous membrane. ▪ The borders appear in periapical radiographs as a thin and radiopaque line.
86
maxillary sinus
87
What is red?
floor of the nasal cavity
88
maxillary sinus floor
89
The inferior border of the _________ ______ appears as a thin radiopaque line near the apices of the maxillary premolars and molars.
maxillary sinus
90
maxillary sinus
91
maxillary sinus
92
The floor of the maxillary sinus (arrows) often extends toward the crest of the alveolar ridge in response to...
missing teeth
93
septum in the maxillary sinus
94
neurovascular canals in the wall of the maxillary sinus
95
What is the inverted y?
Formed by nasal fossa and maxillary sinus
96
inverted y
97
What is the soft tissue of the tip of the nose can be seen in projections of the maxillary incisors, superimposed over the roots?
Nose
98
nose
99
nose
100
nose
101
nose
102
What is the lateral fossa?
A depression in the maxilla near the apex of the lateral incisor.
103
lateral fossa
104
lateral fossa
105
The lateral fossa is a diffuse radiolucency in the region of the...
lateral incisor
106
lateral fossa
107
lateral fossa
108
What is the nasolacrimal canal?
Runs from the orbit inferiorly to the nasal cavity.
109
nasolacrimal canal
110
nasolacrimal canal
111
The nasolacrimal canals are commonly seen as ovoid _____________ on maxillary occlusal projections.
radiolucencies
112
Nasolacrimal canal is occasionally seen near the apex of the _________ when steep vertical angulation is used
canine
113
What is the zygomatic process of the maxilla?
The zygomatic process of the maxilla is an extension of the lateral maxillary surface that articulates with the maxillary process of the zygoma.
114
ZYGOMATIC PROCESS OF THE MAXILLA
115
zygomatic process of the maxilla
116
zygomatic process of the maxilla
117
White arrows
zygomatic process of maxilla
118
Blue line
floor of maxillary sinus
119
Red line
tuberosity
120
Yellow line
floor of the nasal cavity
121
zygoma
122
What is the nasolabial fold?
Radiographically is an oblique line demarcating a region that appears to be covered by a veil of slight radiopacity
123
nasolabial fold
124
nasolabial fold
125
The nasolabial soft tissue fold extends across the __________ region.
canine-premolar
126
tuberosity
127
tuberosity
128
What are the pterygoid plates and hamular notch?
The medial and lateral pterygoid plates lie immediately posterior to the tuberosity of the maxilla.
129
hamular notch/process
130
hamular notch
131
pterygoid plates
132
hamular process

Radiology (25 decks)

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