Radiographic Interp. 10 (Radiographic Terminology)

Front 1

With any radiographic finding, you need to be able to explain it in terms of 4 different things. What are these categories?

Back 1

bone appearance, pathology, internal appearance, effect of lesion on surrounding tissue

Front 2

The mandible is overall (RL/RO) compared to the maxilla

Back 2

RL

Front 3

The maxilla has (larger/smaller) and (rounder/more irregular) spaces then the mandible

Back 3

smaller, rounder

Front 4

Most abnormal conditions are (bilateral/unilateral)

Back 4

unilateral

Front 5

What are the 7 steps to analyze an osseous lesion?

Back 5

1.Position & Distribution
2.Size & shape
3.Internal structure (RO/RL/Mixed)
4.Borders
5.Effects of the lesion on surrounding structures
like bone & teeth
6.Periosteal reactions
7.Differential diagnosis

Front 6

A lesion may be in one area or spread out... what are the technical terms for these?

Back 6

localized and generalized

Front 7

We need to be sure to look at what portion of the root to diagnose periapical lesions?

Back 7

apical 1/3

Front 8

The point of origin of a lesion is also known as the ___

Back 8

epicenter

Front 9

If the epicenter is coronal to the tooth, it is probably ___

Back 9

odontogenic

Front 10

If the epicenter is above the mandibular canal, it is probably ___

Back 10

odontogenic

Front 11

If the epicenter is below the mandibular canal, it is probably ___

Back 11

NOT odontogenic

Front 12

If the epicenter is within the mandibular canal, it is probably ___

Back 12

neural or vascular in nature

Front 13

If the epicenter is in the condylar region, it is probably ___

Back 13

cartilaginous lesion

Front 14

If the epicenter is within the maxillary sinus or antrum, it is probably ___

Back 14

non-odontogenic

Front 15

Which of these are likely to be odontogenic?

Epicenter is:

A. within max sinus
B. coronal to tooth
C. above mandibular canal
D. below mandibular canal

Back 15

B and C

coronal to tooth
above mandibular canal

Front 16

If a lesion has a thin RO line around a RL area, we say that this lesion is ___

Back 16

corticated

Front 17

If a lesion grows rapidly, or causes bone destruction, it tends to be ___ shaped

Back 17

scalloped

Front 18

Cysts tend to be (circular/scalloped) shaped

Back 18

circular

Front 19

The trabeculae become (thinner/thicker) in response to inflammation

Back 19

thicker

Front 20

Cysts tend to have a (corticated/non-corticated) border

Back 20

corticated

Front 21

A punched out lesion has (no/mild/severe) bone reaction

Back 21

no

Front 22

What does the bone surrounding a punched out lesion look like?

Back 22

normal, up until the lesion edge

Front 23

Wide radiopaque margin of reactive bone that is not uniform in width (not well defined) and may indicate SLOW growth of potential for lesion to stimulate the production of surrounding bone is known as what?

Back 23

sclerotic border

Front 24

What type of border is frequently seen with chronic periapical lesions?

Back 24

sclerotic border

Front 25

When you have a gradual transition between normal and abnormal bone trabeculae of a lesion, we call this a ____ border

Back 25

undemarcated (or poorly defined)

Front 26

Cystic lesions will be relatively (RL/RO)

Back 26

RL

Front 27

Calcified material will be relatively (RL/RO)

Back 27

RO (best seen against a RL background)

Front 28

If a tooth is ankylosed, it has:

A. A 50% larger PDL space
B. A 50% smaller PDL space
C. No PDL space
D. Ankylosed teeth cannot be identified based on PDL

Back 28

C. No PDL space

Front 29

Which of the following would be likely if a person has GENERALIZED and WIDE PDL spaces:

A. Perio disease
B. Malignant growth like bone sarcoma
C. orthodontic tooth movement
D. severe bruxism

Back 29

A, C, and D are all indicated with a wide generalized PDL space.

(Yes, I get that if any of these were in a small area, it would suddenly become 'localized'. I guess these are just more commonly seen with generalized wide PDL. See page 7, slide 6)

Front 30

(No/Wide) lamina dura indicates periodontal disease

Back 30

No

Front 31

Generalized wide lamina dura may indicate what?

Back 31

osteopetrosis (yes, osteopeTrosis!)

Front 32

Traumatic occlusion is indicated by a (wider/thinner) lamina dura

Back 32

wider

Front 33

Orthodontic movement will give the patient a (wider/thinner/no change) PDL and a (wider/thinner/no change) lamina dura

Back 33

wider, no change

Front 34

A person with uncontrolled diabetes will have a(n) (loss/enlargement) of alveolar bone

Back 34

loss

Front 35

What bone disease has a 'sun-burst' appearance?

Back 35

Osteosarcoma

Front 36

What is subpontic hyperostosis?

Back 36

When alveolar crestal bone thickens below a bridge in a patient's mouth

Front 37

"Onion-skin" type of appearance in periosteal bone indicates what?

Back 37

This is an inflammatory response (like osteomyelitis)

Front 38

Match:

1. osteomyelitis
2. osteosarcoma

A. onion-skin type
B. sunburst

Back 38

1=A
2=B

Front 39

True or False, inflammatory diseases only cause bone to be resorbed

Back 39

False, it can cause resorption OR formation

Front 40

Which type of lesion damages the cortical plate bone?

A. Fast moving
B. Slow moving
C. Both
D. Neither, cortical bone is never damaged

Back 40

A. fast moving

Front 41

Which is generalized RL and which is localized RO?

Back 41

Red - general RL
Purple - localized RO

Front 42

Which is periapical? Pericoronal?

Back 42

blue - periapical
orange - pericoronal

Front 43

What is this?

Back 43

salivary gland depression (not a cyst)

Front 44

What is this lesion?

Back 44

Neural lesion (because the canal is expanded)

Front 45

Which is fully and which is partially corticated?

Back 45

left - fully
right - partially

Front 46

This is considered (uni/multi)locular

Back 46

multi

Front 47

This is considered ___-corticated

Back 47

non (or punched out)

Front 48

The image on the left is considered __-corticated. The image on the right has bone (resorption/deposition)

Back 48

non-corticated, resorption

Front 49

This type of bone forms in response to inflammation, what is it called?

Back 49

sclerotic bone (also, it has an undemarcated border)

Front 50

This lesion is ___-corticated

Back 50

partially corticated

Front 51

What is wrong with the LD and PDL space here?

Back 51

They are indistinct

Front 52

What is wrong with the LD and PDL space here?

Back 52

They are indistinct

Front 53

Describe this lesion in terms of its RL and/or RO

Back 53

It is a well defined RO lesion with some cortication and a RL halo

Front 54

Describe the PDL space and LD

Back 54

PDL is wider, LD indistinct (also, there is sclerotic bone)

Front 55

This irregularly wide PDL space is indicative of malignant ____

Back 55

lymphoma

Front 56

This mass of bone is called what?

Back 56

Subpontic hyperosteosis

Front 57

This sun-burst appearance is indicative of what?

Back 57

Osteosarcoma

Front 58

This tooth is called a ___ tooth

Back 58

ghost

Front 59

Which is onion skinned and which is sunburst?

Back 59

orange - onion
blue - sunburst

Front 60

Is this lesions corticated?

Back 60

yes

Front 61

This is a ___ cyst

Back 61

periapical

Front 62

Name the 3 things evident in this picture (PDL, LD, bone)

Back 62

wide PDL
indistinct LD
sclerotic border

Front 63

Is this internal or external root resorption?

Back 63

external

Front 64

What is wrong with the left canal in the far right tooth?

Back 64

calcified

Front 65

The blue line indicates a __locular lesion (bi, uni, multi, etc.)

Back 65

multilocular