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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
Q

When the dying pulp releases its products the reaction they elicit depends upon their ____ ,the amount of _____, and the _____ of the host

A

nature
infection
resistance

26
Q

1st stage of pulpitis: edema of the ______ which causes the pt. _____

A

PDL

pain

27
Q

In the 1st stages of pulpitis the edema of the PDL ___ be seen radiographically

A

can’t

28
Q

2nd stage of pulpitis: the PDL will appear _____ to “______” at the apex

A

radiographically

thicken

29
Q

3rd stage of pulpitis: the __ will expand or be destroyed due to continued increase of pressure from PDL

A

lamina dura

30
Q

____ lesions make the lamina dura expand while ___ lesions make it become destroyed

A

chronic

acute

31
Q

4th stage of pulpitis: The bone surrounding the tooth will begin to be ___, causing a ___ lesion at the apex known as a _____

A

destroyed
radiolucent
periapical abscess

32
Q

Radiographically, the abscess, granuloma and cyst will appear?

A

the same

33
Q

What is the term given to the radiolucent lesion when it first appears?

A

Periapical Abscess

34
Q

In order to make a differential diagnosis between an abscess, granuloma, or a cyst what needs to be done?

A

biopsy

35
Q

What is the most common sequela of pulpitis?

A

Granuloma

36
Q

A granuloma is a localized mass of __ inflamed granulation tissue at the apex of a ___ tooth

A

chronically

nonvital

37
Q

A granuloma is typically ______ but has a previous history of prolonged _______

A

asymptomatic

sensitivity (hot/cold)

38
Q

A granuloma is initially seen as a __ on a radiograph

A

widened PDL

39
Q

The ____ is not visible between the root apex and the apical lesion of a granuloma

A

lamina dura

40
Q

When the lesion is _____ and not treated at the granuloma stage it may degenerate and develop into a cyst

A

chronic

41
Q

periapical cysts comprise __ to _% of all cysts in the oral region

A

50-70

42
Q

A periapical abscess is a localized collection of ____ and may be __ or ___

A

pus
acute
chronic

43
Q

A _____ periapical abscess is painful and the tooth is _ and sensitive to __, ___, and __

A

painful
nonvital
pressure, percussion, heat

44
Q

Chronic periapical abscesses are ____ because the pus drains out. Also, you can clinically see a ____ in the apical region

A

asymptomatic

boil

45
Q

A periodontal abscess results from ___ within the walls of perio tissues and results from a pre-existing ______ condition

A

bacterial infection

periodontal

46
Q

If a lesion is > _____cm in diameter it is more likely a cyst not a granuloma

A

1.5

47
Q

Periapical lesions are seen in the apex of the tooth and involve the ____, _____ and ___

A

PDL
lamina dura
alveolar bone

48
Q

Periapical Radiopacities _____ be diagnosed on x-rays

A

can

49
Q

What is the most common radiopacity found in adults

A

condensing osteitis

50
Q

Condensing osteitis occurs with a _, low ___ lesion and deposition of _____ around/below roots/apex.

A

chronic
toxicity
bone

51
Q

Condensing Osteitis deals with __ teeth with a history of long standing _____ or typically have a large __ or ___

A

non-vital
pulpitis
cavity
restoration

52
Q

The condensing osteitis will appear ____ the PDL space

A

outside

53
Q

Sclerotic bone is also known as ____

A

osteosclerosis

54
Q

Sclerotic bone lesions deal with ____, _____ teeth.

A

vital

non-carious

55
Q

What type of radiopaque lesion is found inside the PDL/lamina dura

A

Hypercementosis

56
Q

What radiopaque lesion is not actually attached/related to the tooth?

A

Sclerotic bone lesion

57
Q

Hypercementosis is defined as?

A

excessive cementum deposition

58
Q

The apical region of a hypercementosis lesion appears?

A

bulbous/clubbed

59
Q

Teeth affected by hypercementosis are _ and ___ tx.

A

vital

do not require

Radiology (24 decks)

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