Radio-opaque lesions

Question 1

Torus palatinus is a?

Answer 1

hyperplasis

Question 2

Torus palatinus - describe

Answer 2

palatal torus / bony protuberance at the midline of the palate

Question 3

Torus palatinus radiographic features

location, periphery and shape, internal structure?

Answer 3

Located - hard palate

periphery and shape – well defined, convex or lobulated

internal structure - homogeneously and radio-opaque

Question 4

Torus mandibularis is?

Answer 4

a hyperplasia

Question 5

describe Torus mandibularis

Answer 5

mandibular tori - bony protberance on the lingual aspect of the mandible close to PM

Question 6

Torus mandibularis radiographic features?

location, periphery and shape, internal structure?

Answer 6

lingual and bilateral

periphery and shape - sharply demarcated

internal – homogenously radio-opaque

Question 7

hyperostosis is?

Answer 7

other hyperostosis
- small regions of osseous hyperplasia

• most commonly on the buccal surface of the maxilla

Question 8

is hyperostosis a pathology

Answer 8

no – just excessbone within that region

so can be associated with the tori

Question 9

hyperostosis radiographic features

location, periphery and shape, internal structure?

Answer 9

maxillary alveolar process - super-imposed on teeth

periphery- well defined or poorly

internal - radio-opaque and homogenous

Question 10

dense bone island

Answer 10

enostosis, periapical idiopathic osteosclerosis

localized growth of compact bone

Question 11

radiographic features of dense bone island

location, periphery and shape, internal structure effects?

Answer 11

location – madible > maxilla
PM-molar region

periphery - well defined and NO CAPSULE

internal structure - radio

may resorb roots but PROBABLY NOT

Question 12

hypercementosis looks like?

Answer 12

excess cementum over roots but the PDL and lamina dura are in tact

Question 13

odontoma disease mechanism

Answer 13

radiographically and histologically characterized by the production of mature enamel, dentin, cementum and pulp
can arise off cortical thickness

Question 14

odontoma true benign neoplasm?

Answer 14

no - arise off of he

Question 15

osteoma disease mechanism

Answer 15

may arise from cartilage or embryonic origin

• can go into sinus and onto the mandible

Question 16

clinical features of osteoma

Answer 16

> 40 , asymetry caused by the swelling and painless, cortical type in men and cancellous in woman

Question 17

osteoma location

Answer 17

location - mandible > maxilla, lingual side of ramus of the mandible or inferior mandibular border apical to molars, condyle and coronoic process
paranasul/ frontal sinus

Question 18

osteoma radiographic features

periphery, internal structure, effects on surrounding?

Answer 18

Periphery - well defined

internal - uniformly radio-opaque

effects on surrounding - displacement of adjacent structures

Question 19

osteoma DD?

Answer 19

see slide

Question 20

symmetry with osteoma?

Answer 20

no – asymmetric - how differentiate with tori (usually seen bilateral)

Question 21

symmetry with osteoma?

Answer 21

no – asymmetric - how differentiate with tori (usually seen bilateral)

Question 22

why worry about gardners syndrome?

Answer 22

yes - can transform into malignancies

• especially when we start to see more than 5 polyps

Question 23

gardners syndrome

Answer 23

a variant of familial adenomatous polyposis (FAP)

Question 24

gardners syndrome inheritance pattern?

Answer 24

autosomal dominant characterized by GI polyps, multiple osteomas, and skin and soft tissue tumors

Question 25

percent risk polyps have of undergoing malignant transformation?

Answer 25

100%

Question 26

radiographic feature of gardners syndrome

Answer 26

multiple dense bone islands osteomas are most commonly seen in frontal, mandible, maxilla, and sphenoid bones more than 5 dense bone islands should consider a syndrome multiple unerupted teeth permanent and supernmerary

Question 27

radiographic feature of gardners syndrome

Answer 27

multiple dense bone islands osteomas are most commonly seen in frontal, mandible, maxilla, and sphenoid bones more than 5 dense bone islands should consider a syndrome multiple unerupted teeth permanent and supernmerary

Question 28

cemento-osseous dysplasia three variants

Answer 28

1. peri-apical COD 2. focal COD 3. florid COD

Question 29

Peri-apical cemento-osseous dysplasia definition

Answer 29

localized change in normal bone metabolism , resulting in cancellous bone replaced by fibrous tissue and cementum like material

Question 30

Peri-apical cemento-osseous dysplasia features

Answer 30

middle aged individuals, females >males , more common in blacks

Question 31

cemento-osseous dysplasia three variants test same?

Answer 31

YES -- starts off at radiolucent to tooth structure and ALL TEETH WILL TEST VITAL

Question 32

difference between peri-apical __ and the periapical cemento-osseous dysplasia

Answer 32

Peri-apical lesion -- TOOTH IS NON-VITAL AND WITH THESE THE TOOTH TEST VITAL - What do we do for vital teeth --> not doing treatment

Question 33

Florid Cemento-osseous dysplasia definition

Answer 33

FCOD is a wide spread of PCOD Normal cancellous bone replaced by fibrous tissue and cemento-osseous tissue, poorly vascularized

Question 34

Florid Cemento-osseous dysplasia INITIAL PHASE?

Answer 34

RADIO-LUCENT -- like all the variants

Question 35

importance of vitality test?

Answer 35

MUST DO THIS as Cemento-osseous dysplasia because do not want endo treat if do not need to

Question 36

odontoma synoym

Answer 36

odontogenic hamartoma

Question 37

complex odontoma

Answer 37

nondescript mass of dental tissue

Question 38

compound odontoma

Answer 38

multiple well defined teeth

Question 39

clinical feature of odontoma

Answer 39

most common and interfere with eruption

Question 40

radiographic features of odontoma location, periphery and shape, internal structure effects?

Answer 40

Location -- compound = anterior maxilla w/ crown of unerupted teeth complex= mand 1st and second molar periphery - well defined, smooth or irregular, corticated border with a radiolucent area adjacent internal-- radio-opaque compound -- tooth like complex -- irregular calcified effects -- impaction, malpositioning, diastema, malformaiton

Question 41

root fragments

Answer 41

- Dense structure that does have some pdl and lamina dura coming out - Pdl widened around the root strucure ○ So have som type of periodontal lesion or inflammation has taken place Top middle - retained root tip - CAN SESE PDL AND LAMINA DURA AND PULP CANAL RUNNING THROUGH Onto the periapical --> Vs. dense bone island - radio-opaque WITH NO CAPSULE OR CORTICATION AROUND I