Radio Exam Review

Front 1

What is the radiographic sign demonstrating loss of normal outer cortex and linear alignment of trabeculae?

Back 1

Paget's

*50+ and see lots of half circles

Front 2

Which two things do you see hypercementosis?

Back 2

-Paget's

-hyperpituitarism

Front 3

If you see spiked roots, what does that mean?

Back 3

MALIGNANCY

Front 4

If you see hair on end ON SKULL, which two things could be present?

Back 4

thalassemia and sicke cell disease

Front 5

If you see floating teeth, what should you be thinking of?

Back 5

DENTIN DYSPLASIA (type 1)

*w-shaped roots

*non-odontogenic

Front 6

If you see flame-shaped pulp, what should you be thinking of?

Back 6

DENTIN DYSPLASIA (type 2)

-flame shaped pulp

Front 7

What will you see in bruxism?

Back 7

-widening of pdl

-narrowing of pulp chamber

Front 8

What will you see in attrition?

Back 8

-extra secondary dentin

-wear facets

-narrow pulp

Front 9

What do you see?

Back 9

Cotton wool

*PAGET'S

Front 10

What do you see?

Back 10

hypercementosis

*Paget's or hyperpituitarism

Front 11

What do you see?

Back 11

linear alignment of trabeculae

*Paget's

Front 12

What do you see?

Back 12

Cherubism

*KIDS (inherited AD disease)

*bilateral multilocular lesions

*pushes posterior teeth anteriorly

*significant jaw expansion

Front 13

What is a sclerotic border?

Back 13

-wider zone of transition

-made up of r-opaque border of reactive bone

*May see with POD

Front 14

Back 14

POD

-notice sclerotic border on periphery

-you don't need to tx POD

Front 15

Back 15

dentin dysplasia type 1

"w" shaped roots

Front 16

Back 16

dentin dysplasia type 2

-coronal type/flame pulp

Front 17

Back 17

mucus retention cyst/retention pseudocyst

soft tissue and benign

Front 18

Back 18

ameloblastoma

*CURVED SEPTA

-remember ameloblastoma doesn't produce bone

-you see curved septations and soap bubble internal structure

Front 19

Back 19

ameloblastoma

-SOAP BUBBLE w/ curved septa

Front 20

Back 20

ameloblastoma

-horizontal root resorption

Front 21

Back 21

wispy/bony spicules

OSTEOSARCOMA (malignancy)

also see widening of pdl

Front 22

What do you see on the lateral?

Back 22

FUSION

-one less tooth in arch; only a notch

(in gemination, when tooth is counted as one you will have normal amount of teeth)

Front 23

Back 23

concrescence

-only attached at cementum

Front 24

Back 24

taurodontism

-elongated chamber

-more apical furcation

Front 25

Back 25

amelogenesis imperfecta

-hypoplastic type

-picket fence teeth

-absence of contact

Front 26

Back 26

amelogenesis imperfecta

-note thin enamel

Front 27

Back 27

ectodermal dysplasia

-missing and/or anodontia or oligodontia is associated

*must also have problem with hair, sweat gland problems, nail problems

Front 28

Back 28

attrition

-crown shortened

-pulp chamber narrowed

-could see widening of pdl

Front 29

Back 29

widening of pdl spaces after concussion

Front 30

Back 30

apical sclerosing osteitis

-WIDENED PDL

-r-lucency

-decay!

Front 31

Le Fort fractures involve:

Back 31

-one/more pterygoid plates of sphenoid bone

-most often unilateral

Front 32

Back 32

Water's view of TRIPOD FRACTURE

-fracture of R zygoma

short arrow = orbital tim

long arrow = lateral border of maxillary sinus

so:

1. lat orbital wall of zygomaticofrontal suture

2. zygoma and maxilla at zygomaticomax. suture

3. zygomatic arch at zygomaticotemporal suture

Front 33

Back 33

Le Fort Fracture I

-fracture in the body of the maxilla

-separation of alveolar process and adjacent bone of maxilla

Front 34

Back 34

Le Fort II

-fracture extends from bridge of nose inferiorly, laterally, and posteriorly and cracks the orbital floor and inferior rim obliquely

Front 35

Back 35

Le Fort III

-midface

Front 36

Classify fracture

Back 36

Le Fort II

Front 37

Back 37

thalassemia

-granular appearance of skull

-diploid space reduced

-rodent face

-large marrow spaces

-thin cortical border

*hair on end also seen in sickle cell

Front 38

Back 38

sickle cell anemia

hair on end

*could be thalassemia

Front 39

Back 39

sickle cell

-increased diploic space

-thinned cortex

*thalassemia also shows thickening of diploid space and cortex thinning

Front 40

Which condition is associated with rodent face?

Back 40

thalassemia

Front 41

Back 41

multiple myeloma

-punched out

*malignant systemic condition

Front 42

Back 42

multiple myeloma

-punched out

Front 43

Back 43

osteopetrosis

-and note osteomyelitis on arrow causing proliferation of cortex

Front 44

Back 44

Langerhans cell histiocytosis

*scooped out

-causes massive bone destruction

-result is loss of teeth

Front 45

Back 45

Langerhans cell histiocytosis

*scooped out/well-defined punched out

*result is loss of teeth

Front 46

Name things you should know about FOD

Back 46

*blacks(~38)

*females

*sclerotic borders

*mixed density (r-opacity mostly)

-it's a widespread form of POD

Front 47

Back 47

odontogenic myxoma

*straight septa

*no root resorption or expansion

*frequently scallops between roots!

Front 48

Back 48

KOT

-grows along internal aspect of jaws, causing little expansion

-most commonly r-lucent and corticated

-see curved septa

*scalloped margin

Front 49

Which things spread ant/post?

Back 49

-KOT

-Myxoma

-fibrosarcoma

Front 50

Which things are scalloped?

Back 50

-KOT

-myxoma

-SBC

-Langerhans

Front 51

Back 51

SBC

*r-lucent

*scalloped; lamina dura present

Front 52

Back 52

ossifying fibroma

-wispy pattern

Front 53

Back 53

ossifying fibroma

Front 54

Possible sequelae to trauma:

Back 54

-narrowing pulp space

-rarefying osteitis with necrotic pulp

-internal root resorption (rare)

Front 55

Complicated vs uncomplicated crown fracture

Back 55

uncomplicated = fracture with no pulp exposure

complicated = fracture with pulp exposure

Front 56

Four S method for facial trauma

Back 56

-symmetry

-sharpness

-sinus

-soft tissues

Front 57

Back 57

step

Front 58

Back 58

overlap

Front 59

Back 59

separation

Front 60

Back 60

mucositis

*only at floor of mx sinus

Front 61

Back 61

sinusitis

Front 62

Back 62

periostitis "halo effect"

-elevation of the periosteal floor of the maxillary sinus

Front 63

Brown tumors are associated with?

Back 63

-hyperPTH

*also see granular calivarium

Front 64

Back 64

progressive systemic sclerosis

*mandibular erosions

Front 65

What do you see?

Back 65

-see large marrow spaces

*thalassemia

Front 66

Back 66

apical rarefying osteitis

-NONVITAL pulp

Front 67

Back 67

axial bone window

-showing multiple sequestrae, so osteomyelitis

Front 68

Back 68

proliferative periostitis

Front 69

When you suspect osteomyelitis, what Rx should you get?

Back 69

CT - to detect periosteal new bone and sequestra

Front 70

Back 70

osteomyelitis

-see new periosteum (white)

-see thinning of cortical bone (black)

*in FD, you have a lot of expansion, and you no longer see cortical border

Front 71

Back 71

-FD

top L - swirl/fingerprint

top R - ground glass

bottom L - cotton wool

bottom R - orange peel

Front 72

Which lesion displaces IAN canal in SUPERIOR direction?

Back 72

FD

-see thin outer cortex

-no root resorption

Front 73

Back 73

FD

-pointing to IAN canal displaced superiorly

Front 74

In osteomyelitis, additional bone is generated by:

Back 74

periosteum

Front 75

Back 75

FD

-expansion of lateral mandible

-add bone on inside; thinned outer cortex

don't biopsy FD

Front 76

What could retrigger FD?

Back 76

oral contraceptives, pregnancy

Front 77

Back 77

POD

-note sclerotic border at periphery