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Flashcards in Radiology Roulette Deck (90)
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1
Q

What color are dental Caries clinically?

A

Chalky White

*also brown

2
Q

What is the best Radiograph to use for Interproximal Caries in the Anterior?

Posterior?

A

Periapicals

Bitewings

3
Q

3 very Radiopaque hard tissues in Pano:

Very Radiolucent soft tissue in Pano:

A

Cranial Bone, Cortical Bone, Teeth

Airway

4
Q

A minimum of ____% demineralization must occur before it shows up on Radiographs

A

55-60%

5
Q

T/F

Incipient caries can be seen on Radiographs

A

False

6
Q

How far into the Dentin does Caries have to be before we see it clinically?

A

1/2

7
Q

Incipient caries are ____ thickness of Enamel

Moderate caries are _____ thickness of Enamel and do not involve the ______

Advanced Caries are _____ distance to Pulp Cavity

Severe Caries are _____ distance to Pulp Cavity

A

less than 1/2

more than 1/2

less than 1/2 (Enamel + Dentin)

more than 1/2

8
Q

Clinically, Severe Caries appears as a _______

A

Cavitation

9
Q

3 limitations of Radiographs for a Perio diagnosis:

A

Superimposition

No soft tissue of periodontium

Cemento-enamel Junction used as landmark for measuring bone loss

10
Q

Cemento-enamel Junction (CEJ) can’t be used as diagnostic in imagery if what has occurred?

A

Supraeruption

11
Q

Image limitations for Perio: radiographs ____ dimensional

Details lost due to _______

Radiographs don’t demonstrate ______ disease (need 55-60% demineralization)

Radiographs don’t show ______

CEJ not valid if ______ has occurred

A

2

superimposition

incipient

soft tissue

supraeruption

12
Q

What image is best to show the bone height?

A

Vertical or Horizontal Bitewings

13
Q

The Crest of Bone is normally ____ mm below the CEJ

A

1-2 mm

14
Q

A little bit of inflammation will cause moderate deposition/resorption, causing…

Lots’ of inflammation will cause lots of Deposition/Resorption, causing…

A

Radiolucencies

Radiopacities

15
Q

Deposition of Bone in Perio disease will lead to what?

A

Body laying down bone (sclerosis)

*radiopaque

16
Q

Apical perio will cause _____, which will create _____ on an image

A

sclerosis

radiopacities

17
Q

Localized Aggressive Perio will present how radiographically?

Usually seen in _____ decade

Happens to what 2 teeth?

____ bone loss and minimal amounts of _____

A

Vertical Defects

2nd

Mn 1M, CI’s

rapid, plaque

18
Q

LAP (Localized Aggressive Perio) is known for what type of Bone Loss?

A

Vertical

***localized and vertical

19
Q

Uncontrolled Diabetes will result in what on a radiograph?

A

Alveolar bone loss

*“bone loss and destruction of alveolar bone”

20
Q

Supernumerary teeth are more likely to occur in what Dentition?

Where?

A

Permanent

Mx incisors (mesiodens)

21
Q

Supernumerary teeth occur in ___% of the pop. and are 2x more common in _____ (gender)

A

1-4%

males

22
Q

What syndrome should you associate with Supernumerary Teeth?

Name 2 more:

A

Gardner’s Syndrome

Cleidocranial Dysplasia, pykodysostosis

23
Q

Most common missing teeth

and then…

and then…

and then…

A

3rd molars

2nd premolars

Mx LI

Mn CI

24
Q

Larger than normal teeth, rarely affects entire dentition

A

Macrodontia

25
Q

Macrodontia in the Molars is usually increased ____ dimension

Centrals?

A

M/D

M/D and coronal/apical

26
Q

Single tooth attempts to divide (normal tooth count if treated as one)

A

Gemination

27
Q

Union of two adjacent teeth:

A

Fusion

28
Q

Roots of 2 or more primary or permanent teeth are fused by Cementum

A

Concrescence

29
Q

Disturbance is the tooth formation that produces a sharp bend or curve in the tooth anywhere in the Crown or Root:

A

Dilaceration

30
Q

Tooth inside a Tooth:

Risk of what?

A

Dens Invaginatus

pulpal inflammation

31
Q

Extra enamel tubercle, usually located in the Central Occlusal Area

A

Dens Evaginatus

32
Q

Elongated body and short Roots, with pulp chamber extending apically throughout

A

Taurodontism

33
Q

T/F

Taurodontism can happen to any tooth

A

True

34
Q

T/F

Clinically, the distinguishing features of Taurodontism are NOT visible

A

True

**short “bull” roots

35
Q

T/F

Taurodontism occurs with greater frequency w/ Trisomy 21, AI, and Klinefelters

A

True

36
Q

T/F

There is Tx for Taurodontism

A

False

37
Q

Amelogenesis Imperfecta is an anomaly arising in _____ genes involved in enamel formation

A

1 of 4

38
Q

What are the 4 types of Amelogenesis Imperfecta?

A

Hypoplastic

Hypomaturation

Hypocalcification

Hypomaturation/Hypocalcification

39
Q

Hypoplastic A.I. the enamel fails to develop to normal ______

Color of the Dentis is _____

Enamel can be rough, pitted, smooth, or glossy, but thre is loss of _____

Cusps are _____

A

Thickness

yellowish brown

interproximal contact

flat

40
Q

Hypomaturation A.I. the enamel looks _______ and has ____- thickness

A

mottled

normal

*may break away from crown, “snow capped”

41
Q

Hypocalcification A.I. crown is ______ but the enamel is poorly ______

A

normal

mineralized

42
Q

T/F

A normal explorer can penetrate Hypocalcification A.I. enamel

A

True

43
Q

Hypocalcification A.I stains more b/c of more porous

A

True

44
Q

Hypocalcification/Hypomaturation A.I. combo has enamel that is the same radiopacity of _______

A

dentin

45
Q

Radiographically, A.I. has what 4 features?

A

Square crown

thin radiopaque layer Enamel

Low/absent cusps

multiple open contacts

46
Q

4 (radiographic) characteristics of Dentinogenesis Imperfecta

A

Bulbous crowns

Constriction at CEJ

Short Roots

Reduced size of pulp chamber

47
Q

Clinically, D.I. has ____ like translucency with Yellow to Blue Gray

A

Amber

48
Q

Regional Odontodysplasia has a ______ appearance radiographically

A

Ghost like

49
Q

A localized arrest in tooth development with Ghost like appearance:

A

Regional odontodysplasia

50
Q

T/F

Regional odontodysplasia affects both enamel and dentin (hypoplastic/hypocalcified)

A

True

51
Q

T/F

Regional odontodysplasia is hereditary

A

False

52
Q

3 Radiographic features of Regional Odontodysplasia:

A

Ghost like

Thin enamel/dentin

Appear to be resorbing

53
Q

Localized, radiolucent, round, oval, elongated, Sharply Defined, expansion

pulp canal same shape, surfaces affected

A

Internal resorption

External resorption

54
Q

T/F

Once inside, it is difficult to tell if resorption began internally or externally

A

True

55
Q

What is the hallmark sign of Osteomyelitis?

A

Sequestra

*internal piece of dead bone

56
Q

Apical lesions, Sclerosis will appear…

What will be the most Radiolucent?

A

Radiopaque

Rarifying

57
Q

The most Radiolucent periapical lesion is…

Radiopaque is…

A

Rarifying

Sclerotic

58
Q

Acute Osteomyelitis is from an infection that spread where?

Originating in a ____ tooth, ____, or _____

A

marrow

non-vital, trauma, hematogenous

59
Q

Chronic Osteomyelitis may be sequelae of _______ or may arise ____

A

inadequately Tx acute osteomyelitis

de novo

60
Q

Chronic osteomyelitis in which metabolism tips toward increased bone formation - Sclerotic radiographs:

A

Diffuse sclerosing osteomyelitis

61
Q

3 diseases that can cause Osteomyelitis:

A

Fibrous dysplasia

Paget’s

Osteosarcoma

62
Q

Osteomyelitis is most likely to occur where?

A

Posterior Mandible

63
Q

T/F

Osteoradionecrosis may cause Osteomyelitis

A

True

64
Q

Bisphosphonates, aka…

A

pyrophosphates

65
Q

Bisphosphonates inhibit what?

A

Osteoclasts

66
Q

Cysts cause what 3 things?

A

Resorption

tipping of an involved Molar

Expansion

67
Q

Cysts are Radiolucent with well defined Margins and are ___ to ____ in size

A

5 mm

several cm

*can displace or resorb roots

68
Q

What is the most common type of cyst found in the jaw that a dentist will see?

A

Radicular Granuloma/Cyst

69
Q

A Radicular Granuloma is more common where?

A

Maxilla

70
Q

What is the more common cyst, Radicular Granuyloma or KCOT?

A

Radicular Granuloma

71
Q

KCOT is a Cyst derived from ______

KCOT, aka…

A

Dental Lamina

Keratocystic odontogenic tumor

72
Q

KCOT can be found anywhere, anytime

A

True

73
Q

KCOT has mild expansion, male predominance, and a high ____ rate

A

Recurrence

  • is highly aggressive
  • related to Gorlin Syndrome
74
Q

KCOT is diagnosed by the appearance of a ___ , not its contents

A

cyst wall

75
Q

% time KCOT found Posterior body of Mn:

% time KCOT found in the Ramus:

A

90%

50%

76
Q

Where is KCOT found in relation to the IA canal?

A

superior

*similar to dentigerous cyst

77
Q

The borders of KCOT are ____ defined

A

well

*corticated

78
Q

The internal structure of KCOT is _______ despite its keratin

while the borders are ____ and well defined

A

Radiolucent

corticated

79
Q

A Simple Bone Cyst is lined with what?

contents:

No ____ lining, so not a True Cyst

A

Connective Tissue

empty or fluid

epithelial

80
Q

Simple Bone Cyst may be seen as a _______aberration in normal bone remodeling or metabolism

A

localized

81
Q

Enostosis = Idiopahtic focal osteosclerosis = dense bony island

A

True

82
Q

What is associated with Apical Root Resorption of a vital tooth and the Perio Membrane Spce is uniform?

A

Enostosis/idiopathic focal osteosclerosis/DBI

83
Q

Benign tumors spread by ____ extension, so they are NOT metastases

A

Direct

84
Q

Because Benign Tumors enlarge slowly, their borders are relatively ______ and well defined and *sometimes ________

A

smooth

*sometimes corticated

85
Q

T/F

Benign tumors can be radiolucent, radiopaque, or mixed

A

True

86
Q

The rare exception of a Benign Tumor that metastasizes:

*can spread to the brain

A

Ameloblastoma

87
Q

Enostosis (DBI) has apical root resorption and uniform ____

Exostosis is a Radiopacity ____ the jaw

A

PDL

Outside

88
Q

Homogenous, well define Radiopacity Outside the jaw:

A

Exostosis

89
Q

What are the 2 lesions that have a Sunray, Speckled bone pattern

A

Osteogenic sarcoma

Hemangioma

90
Q

An osteoblastoma may be a well defined ______

*along with Hemangioma, it is _____

A

osteogenic sarcoma

*sunray, speckled

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