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Flashcards in Radiology Roulette Deck (90):
1

What color are dental Caries clinically?

Chalky White

*also brown

2

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

Posterior?

Periapicals

Bitewings

3

3 very Radiopaque hard tissues in Pano:


Very Radiolucent soft tissue in Pano:

Cranial Bone, Cortical Bone, Teeth

Airway

4

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

55-60%

5

T/F
Incipient caries can be seen on Radiographs

False

6

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

1/2

7

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

less than 1/2

more than 1/2

less than 1/2 (Enamel + Dentin)

more than 1/2

8

Clinically, Severe Caries appears as a _______

Cavitation

9

3 limitations of Radiographs for a Perio diagnosis:

Superimposition

No soft tissue of periodontium

Cemento-enamel Junction used as landmark for measuring bone loss

10

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

Supraeruption

11

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

2

superimposition

incipient

soft tissue

supraeruption

12

What image is best to show the bone height?

Vertical or Horizontal Bitewings

13

The Crest of Bone is normally ____ mm below the CEJ

1-2 mm

14

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

Lots' of inflammation will cause lots of Deposition/Resorption, causing...

Radiolucencies

Radiopacities

15

Deposition of Bone in Perio disease will lead to what?

Body laying down bone (sclerosis)

*radiopaque

16

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

sclerosis

radiopacities

17

Localized Aggressive Perio will present how radiographically?

Usually seen in _____ decade

Happens to what 2 teeth?

____ bone loss and minimal amounts of _____

Vertical Defects

2nd

Mn 1M, CI's

rapid, plaque

18

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

Vertical

***localized and vertical

19

Uncontrolled Diabetes will result in what on a radiograph?

Alveolar bone loss

*"bone loss and destruction of alveolar bone"

20

Supernumerary teeth are more likely to occur in what Dentition?

Where?

Permanent

Mx incisors (mesiodens)

21

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

1-4%

males

22

What syndrome should you associate with Supernumerary Teeth?

Name 2 more:

Gardner's Syndrome

Cleidocranial Dysplasia, pykodysostosis

23

Most common missing teeth

and then...

and then...

and then...

3rd molars

2nd premolars

Mx LI

Mn CI

24

Larger than normal teeth, rarely affects entire dentition

Macrodontia

25

Macrodontia in the Molars is usually increased ____ dimension

Centrals?

M/D

M/D and coronal/apical

26

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

Gemination

27

Union of two adjacent teeth:

Fusion

28

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

Concrescence

29

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

Dilaceration

30

Tooth inside a Tooth:

Risk of what?

Dens Invaginatus

pulpal inflammation

31

Extra enamel tubercle, usually located in the Central Occlusal Area

Dens Evaginatus

32

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

Taurodontism

33

T/F
Taurodontism can happen to any tooth

True

34

T/F
Clinically, the distinguishing features of Taurodontism are NOT visible

True

**short "bull" roots

35

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

True

36

T/F
There is Tx for Taurodontism

False

37

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

1 of 4

38

What are the 4 types of Amelogenesis Imperfecta?

Hypoplastic

Hypomaturation

Hypocalcification

Hypomaturation/Hypocalcification

39

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 _____

Thickness

yellowish brown

interproximal contact

flat

40

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

mottled

normal

*may break away from crown, "snow capped"

41

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

normal

mineralized

42

T/F
A normal explorer can penetrate Hypocalcification A.I. enamel

True

43

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

True

44

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

dentin

45

Radiographically, A.I. has what 4 features?

Square crown

thin radiopaque layer Enamel

Low/absent cusps

multiple open contacts

46

4 (radiographic) characteristics of Dentinogenesis Imperfecta

Bulbous crowns

Constriction at CEJ

Short Roots

Reduced size of pulp chamber

47

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

Amber

48

Regional Odontodysplasia has a ______ appearance radiographically

Ghost like

49

A localized arrest in tooth development with Ghost like appearance:

Regional odontodysplasia

50

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

True

51

T/F
Regional odontodysplasia is hereditary

False

52

3 Radiographic features of Regional Odontodysplasia:

Ghost like

Thin enamel/dentin

Appear to be resorbing

53

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

pulp canal same shape, surfaces affected

Internal resorption

External resorption

54

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

True

55

What is the hallmark sign of Osteomyelitis?

Sequestra

*internal piece of dead bone

56

Apical lesions, Sclerosis will appear...

What will be the most Radiolucent?

Radiopaque

Rarifying

57

The most Radiolucent periapical lesion is...

Radiopaque is...

Rarifying

Sclerotic

58

Acute Osteomyelitis is from an infection that spread where?

Originating in a ____ tooth, ____, or _____

marrow

non-vital, trauma, hematogenous

59

Chronic Osteomyelitis may be sequelae of _______ or may arise ____

inadequately Tx acute osteomyelitis

de novo

60

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

Diffuse sclerosing osteomyelitis

61

3 diseases that can cause Osteomyelitis:

Fibrous dysplasia

Paget's

Osteosarcoma

62

Osteomyelitis is most likely to occur where?

Posterior Mandible

63

T/F
Osteoradionecrosis may cause Osteomyelitis

True

64

Bisphosphonates, aka...

pyrophosphates

65

Bisphosphonates inhibit what?

Osteoclasts

66

Cysts cause what 3 things?

Resorption

tipping of an involved Molar

Expansion

67

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

5 mm

several cm

*can displace or resorb roots

68

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

Radicular Granuloma/Cyst

69

A Radicular Granuloma is more common where?

Maxilla

70

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

Radicular Granuloma

71

KCOT is a Cyst derived from ______

KCOT, aka...

Dental Lamina

Keratocystic odontogenic tumor

72

KCOT can be found anywhere, anytime

True

73

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

Recurrence

*is highly aggressive
*related to Gorlin Syndrome

74

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

cyst wall

75

% time KCOT found Posterior body of Mn:

% time KCOT found in the Ramus:

90%

50%

76

Where is KCOT found in relation to the IA canal?

superior

*similar to dentigerous cyst

77

The borders of KCOT are ____ defined

well

*corticated

78

The internal structure of KCOT is _______ despite its keratin

while the borders are ____ and well defined

Radiolucent

corticated

79

A Simple Bone Cyst is lined with what?

contents:

No ____ lining, so not a True Cyst

Connective Tissue

empty or fluid

epithelial

80

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

localized

81

Enostosis = Idiopahtic focal osteosclerosis = dense bony island

True

82

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

Enostosis/idiopathic focal osteosclerosis/DBI

83

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

Direct

84

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

smooth

*sometimes corticated

85

T/F
Benign tumors can be radiolucent, radiopaque, or mixed

True

86

The rare exception of a Benign Tumor that metastasizes:

*can spread to the brain

Ameloblastoma

87

Enostosis (DBI) has apical root resorption and uniform ____

Exostosis is a Radiopacity ____ the jaw

PDL

Outside

88

Homogenous, well define Radiopacity Outside the jaw:

Exostosis

89

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

Osteogenic sarcoma

Hemangioma

90

An osteoblastoma may be a well defined ______

*along with Hemangioma, it is _____

osteogenic sarcoma

*sunray, speckled

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