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Radiology > Module 17 > Flashcards

Module 17 Flashcards

1
Q

Trauma may affect _____, ______, and ____

A

crowns
roots
alveolar bone

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2
Q

Whenever a fracture is evident what is necessary?

A

radiographs

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3
Q

What teeth are most often involved in fractures of the crown?

A

anterior teeth

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4
Q

Most crown fractures occur due to?

A

motor vehicle accidents

falls

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5
Q

Root fractures are ____ common than crown fractures?

A

less

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6
Q

Root fractures occur most often in what region?

A

MX central incisor

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7
Q

If an x-ray beam is parallel with the plane of the fracture it will appear as a _____
If the beam is NOT parallel to the fracture plane then it will appear as a _____

A

thin radiolucent line

nothing

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8
Q

Fractures of the ___ occur more often than do fractures of any other bone of the face.

A

mandible

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9
Q

What x-ray type is best to evaluate mandible fractures

A

panoramic

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10
Q

What are the two types of teeth displacement

A

luxation

avulsion

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11
Q

Luxation is defined as?

A

abnormal displacement of teeth

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12
Q

Luxation can be either ______ or ______

A

intrusion

extrusion

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13
Q

Avulsion is defined as?

A

complete displacement of a tooth from alveolar bone

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14
Q

What are the two types of resorption associated with teeth

A

Physiologic

Pathologic

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15
Q

Physiologic Resorption is defined as?

A

normal shedding of primary teeth

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16
Q

Pathologic Resorption is a ___ alteration of tooth structure observed when a tooth is subjected to _______

A

regressive

abnormal stimuli

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17
Q

Resorption of teeth can be described as __ or ___ depending on the location of the process

A

external

internal

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18
Q

External resorption is seen along the ___ of the ___ surface, mainly affecting the _____ of teeth making them appear _____

A

periphery
root
apices
blunted

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19
Q

Both the ____ and _____ around the blunted apex appear normal

A

lamina dura

bone

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20
Q

External resorption is not associated with _____ and not detected ____. They also do not exhibit ______ and there is currently no ______

A

signs/symptoms
clinically
mobility
effective tx.

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21
Q

Internal resorption occurs ____ of a tooth and involves the ___, ___, and ___

A

within the crown/root

pulp chamber, canals, and dentin

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22
Q

What factors are believed to precipitate internal resorption

A

pulp caps
pulp polyps
trauma

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23
Q

Internal resorption appears as ______ on x-rays

A

round/ovoid radiolucency

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24
Q

Internal resorption is generally _____ tx and is ___

A

asymptomatic

variable

25
When the dying pulp releases its products the reaction they elicit depends upon their ____ ,the amount of _____, and the _____ of the host
nature infection resistance
26
1st stage of pulpitis: edema of the ______ which causes the pt. _____
PDL | pain
27
In the 1st stages of pulpitis the edema of the PDL ___ be seen radiographically
can't
28
2nd stage of pulpitis: the PDL will appear _____ to "______" at the apex
radiographically | thicken
29
3rd stage of pulpitis: the __ will expand or be destroyed due to continued increase of pressure from PDL
lamina dura
30
____ lesions make the lamina dura expand while ___ lesions make it become destroyed
chronic | acute
31
4th stage of pulpitis: The bone surrounding the tooth will begin to be ___, causing a ___ lesion at the apex known as a _____
destroyed radiolucent periapical abscess
32
Radiographically, the abscess, granuloma and cyst will appear?
the same
33
What is the term given to the radiolucent lesion when it first appears?
Periapical Abscess
34
In order to make a differential diagnosis between an abscess, granuloma, or a cyst what needs to be done?
biopsy
35
What is the most common sequela of pulpitis?
Granuloma
36
A granuloma is a localized mass of __ inflamed granulation tissue at the apex of a ___ tooth
chronically | nonvital
37
A granuloma is typically ______ but has a previous history of prolonged _______
asymptomatic | sensitivity (hot/cold)
38
A granuloma is initially seen as a __ on a radiograph
widened PDL
39
The ____ is not visible between the root apex and the apical lesion of a granuloma
lamina dura
40
When the lesion is _____ and not treated at the granuloma stage it may degenerate and develop into a cyst
chronic
41
periapical cysts comprise __ to _% of all cysts in the oral region
50-70
42
A periapical abscess is a localized collection of ____ and may be __ or ___
pus acute chronic
43
A _____ periapical abscess is painful and the tooth is _ and sensitive to __, ___, and __
painful nonvital pressure, percussion, heat
44
Chronic periapical abscesses are ____ because the pus drains out. Also, you can clinically see a ____ in the apical region
asymptomatic | boil
45
A periodontal abscess results from ___ within the walls of perio tissues and results from a pre-existing ______ condition
bacterial infection | periodontal
46
If a lesion is > _____cm in diameter it is more likely a cyst not a granuloma
1.5
47
Periapical lesions are seen in the apex of the tooth and involve the ____, _____ and ___
PDL lamina dura alveolar bone
48
Periapical Radiopacities _____ be diagnosed on x-rays
can
49
What is the most common radiopacity found in adults
condensing osteitis
50
Condensing osteitis occurs with a _, low ___ lesion and deposition of _____ around/below roots/apex.
chronic toxicity bone
51
Condensing Osteitis deals with __ teeth with a history of long standing _____ or typically have a large __ or ___
non-vital pulpitis cavity restoration
52
The condensing osteitis will appear ____ the PDL space
outside
53
Sclerotic bone is also known as ____
osteosclerosis
54
Sclerotic bone lesions deal with ____, _____ teeth.
vital | non-carious
55
What type of radiopaque lesion is found inside the PDL/lamina dura
Hypercementosis
56
What radiopaque lesion is not actually attached/related to the tooth?
Sclerotic bone lesion
57
Hypercementosis is defined as?
excessive cementum deposition
58
The apical region of a hypercementosis lesion appears?
bulbous/clubbed
59
Teeth affected by hypercementosis are _ and ___ tx.
vital | do not require

Radiology (24 decks)

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