cysts of the jaw

Question 1

t/f cysts are slowly growing and asymptomatic

Answer 1

yes. persistent and progressive

Question 2

radiographic appearance of cysts

Answer 2

cortigated border, well defined

Question 3

to dx cysts, must find

Answer 3

clinical, radiographic, and microscopic features

Question 4

3 inflammatory cysts

Answer 4

buccal bifurcation cyst, radicular and residual cyst

Question 5

where does the epitheilum come from if a cyst is in the bone

Answer 5

reduced enamel epithelium, enamel organ, dental lamina, HERS, rests of malassez

Question 6

only way to really tell what something is is through

Answer 6

microscopic evidence

Question 7

most of the cysts are lined by what type of epithelium

Answer 7

nonkeratinized stratified squamous epithelium

Question 8

radicular cyst

Answer 8

necrotic deris and bacteria of nonvital pulp

inflammation stimulates with and forms a cysts

Question 9

most common cyst of the jaw

Answer 9

radicular cyts

Question 10

radicular cysts have what kind of border

Answer 10

corticated

Question 11

healing cysts looks like

Answer 11

bone grows from outside in with rolled border

Question 12

residual cyst happens

Answer 12

after extraction without curettage and lining is left

Question 13

lateral periodontal cyst

Answer 13

75-80% in pm/canine area
mandible>max
associated with vital or nonvital cysts
less than 1cm

Question 14

lat periodontal cyst can look like

Answer 14

lat radicular cyst. must test for vitality (nonvital can be both)

Question 15

most common developmental odontogenic cyst

Answer 15

dentigerous cyst

Question 16

features of dentigerous cyst

Answer 16

attached to the cemento-enamel junction of an unerupted tooth
most common with 3rd molars and max canines

Question 17

clinical features of cysts

Answer 17

cortigated, well defined

Question 18

t/f dentigerous cysts can grow very large

Answer 18

true

Question 19

t/f most of the time, dentigerous cysts are unilocular

Answer 19

true

Question 20

guidelines of dentigerous cysts

Answer 20

2-3mm hyperplastic follicle

Question 21

what can be on the differential with dentigerous cysts

Answer 21

dentigerous cysts, okc, ameloblastoma..

Question 22

tx of dentigerous cysts

Answer 22

enucleation of removal of the affected tooth
marsupialization with extraction
little tendency to recur when completely removed

Question 23

eruption cyst

Answer 23

st analogue of a dentigerous cyst

Question 24

what is in an eruption cyst

Answer 24

cystic fluid and/or blood bt an erupting tooth and the dental follicle, completely OUT OF the bone

Question 25

if there is blood present, what color is an eruption cyst

Answer 25

purple

Question 26

tx of an eruption cyst

Answer 26

usually none bc tooth will erupt

Question 27

t/f an eruption cyst is in the bone

Answer 27

false

Question 28

t/f an eruption cyst has the same histologic features as a dentigerous cyst

Answer 28

true. formed from the REE. you'd need the location and history in order to tell which one it is

Question 29

if tx is needed, for an eruption cyst, what do you do

Answer 29

enucleation, removal of associated tooth marsupialization excellent prognosis

Question 30

what was an odontogenic keratocyst formerly known as

Answer 30

keratocystic odontogenic tumor

Question 31

what cellls do odontogenic keratocysts arise from

Answer 31

dental lamina

Question 32

t/f odonotgenic cysts can occur in any odontogenic location

Answer 32

true

Question 33

t/f odonotgenic keratocys cause expansion in mandible

Answer 33

flase

Question 34

what cysts have daughter cysts

Answer 34

odontogenic keratocysts

Question 35

what cysts have the most growth potential than any other odontogenic cyst

Answer 35

odontogenic keratocyst

Question 36

t/f odonotgenic keratocysts have a higher rate of resorption

Answer 36

true

Question 37

radiographic features of an odontogenic keratocyst

Answer 37

well defined corticated uni or multilocular can displace teeth, roots, and perforate cortical plate

Question 38

t/f can odontogenic keratocysts cause expansion in the ramus

Answer 38

true

Question 39

can a dentigerous cyst cause expansion

Answer 39

yes, and an okc can cause expansion only in the ramus

Question 40

in your differential dx of okc, what else woulld you include

Answer 40

benign odontogenic tumor, benign non-odontogenic tumor

Question 41

management of okc

Answer 41

surgical excision with peripheral ostectomy, carnoy solution (chemical peripheral osectomy)

Question 42

recurrence rate of okc

Answer 42

30%

Question 43

t/f okc can mimic other cysts and tumors

Answer 43

true

Question 44

t/f okc have an association with nevoid basal cell carinoma syndrome

Answer 44

true

Question 45

gorlin syndrome

Answer 45

nevoid basal cell carcinoma syndrome

Question 46

clinical findings of gorlin syndorme

Answer 46

``` multiple basal cell carcinoma multiple odotogenic keratocysts calcified falx cerebri rib anomalies palmar plantar pits ocular hypertelorism enlarged head spina bifida ```

Question 47

tx of gorlin syndrome

Answer 47

non life threatening skin cancers important for prognosis enucleation of keratocysts

Question 48

t/f a gorlin cyst can act as a cyst or solid benign neoplasm

Answer 48

true. aka calcifying cyctic odotogenic tumor

Question 49

t/f a calcifying odontogenic cyst can produce a calcifying product and have radiopaque areas

Answer 49

true

Question 50

the radiopaque cyst

Answer 50

calcifying odontogenic cyst (can sometimes be radiolucent)

Question 51

amount of calcifying odontogenic cysts that show radiopacities and are unerupted

Answer 51

30% and 30%

Question 52

most common odontogenic cyst or tumor that is on the gingiva, outside the bone

Answer 52

peripheral calcifying odontogenic cyst

Question 53

what cyst has ghost cells?

Answer 53

peripheral calcifying odontogenic cyst

Question 54

tx of calcifying odontogenic cyst

Answer 54

surgery, recurrence uncommon

Question 55

what is associated with buccal enamel extensions or enamel pearls

Answer 55

buccal bifurcation cysts

Question 56

buccal bifurcation cysts have the same histologic features as what

Answer 56

an inflamed dentigerous cyst or radicular cyst

Question 57

tx of buccal bifurcation cyst

Answer 57

enucleation | involved tooth can often be maintained

Question 58

gingival cyst of the adult is basically what

Answer 58

a lateral periodontal cyst on the gingiva in the area of the mand pms

Question 59

ginigval cyst of the adult has the smae histologic features as what

Answer 59

lateral periodontal cyst

Question 60

tx of gingival cysts of the adult

Answer 60

simple excision | excellent prognosis

Question 61

what is a cyst

Answer 61

pathologic sack of cavity with a central lumen lined by epithelium

Question 62

t/f cysts can become destructive if not treated

Answer 62

true

Question 63

general tx of cysts

Answer 63

simple enucleation or aggressive curettage