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Flashcards in cysts of the jaw Deck (63):
1

t/f cysts are slowly growing and asymptomatic

yes. persistent and progressive

2

radiographic appearance of cysts

cortigated border, well defined

3

to dx cysts, must find

clinical, radiographic, and microscopic features

4

3 inflammatory cysts

buccal bifurcation cyst, radicular and residual cyst

5

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

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

6

only way to really tell what something is is through

microscopic evidence

7

most of the cysts are lined by what type of epithelium

nonkeratinized stratified squamous epithelium

8

radicular cyst

necrotic deris and bacteria of nonvital pulp
inflammation stimulates with and forms a cysts

9

most common cyst of the jaw

radicular cyts

10

radicular cysts have what kind of border

corticated

11

healing cysts looks like

bone grows from outside in with rolled border

12

residual cyst happens

after extraction without curettage and lining is left

13

lateral periodontal cyst

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

14

lat periodontal cyst can look like

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

15

most common developmental odontogenic cyst

dentigerous cyst

16

features of dentigerous cyst

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

17

clinical features of cysts

cortigated, well defined

18

t/f dentigerous cysts can grow very large

true

19

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

true

20

guidelines of dentigerous cysts

2-3mm hyperplastic follicle

21

what can be on the differential with dentigerous cysts

dentigerous cysts, okc, ameloblastoma..

22

tx of dentigerous cysts

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

23

eruption cyst

st analogue of a dentigerous cyst

24

what is in an eruption cyst

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

25

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

purple

26

tx of an eruption cyst

usually none bc tooth will erupt

27

t/f an eruption cyst is in the bone

false

28

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

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

29

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

enucleation, removal of associated tooth
marsupialization
excellent prognosis

30

what was an odontogenic keratocyst formerly known as

keratocystic odontogenic tumor

31

what cellls do odontogenic keratocysts arise from

dental lamina

32

t/f odonotgenic cysts can occur in any odontogenic location

true

33

t/f odonotgenic keratocys cause expansion in mandible

flase

34

what cysts have daughter cysts

odontogenic keratocysts

35

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

odontogenic keratocyst

36

t/f odonotgenic keratocysts have a higher rate of resorption

true

37

radiographic features of an odontogenic keratocyst

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

38

t/f can odontogenic keratocysts cause expansion in the ramus

true

39

can a dentigerous cyst cause expansion

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

40

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

benign odontogenic tumor, benign non-odontogenic tumor

41

management of okc

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

42

recurrence rate of okc

30%

43

t/f okc can mimic other cysts and tumors

true

44

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

true

45

gorlin syndrome

nevoid basal cell carcinoma syndrome

46

clinical findings of gorlin syndorme

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

47

tx of gorlin syndrome

non life threatening
skin cancers important for prognosis
enucleation of keratocysts

48

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

true. aka calcifying cyctic odotogenic tumor

49

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

true

50

the radiopaque cyst

calcifying odontogenic cyst (can sometimes be radiolucent)

51

amount of calcifying odontogenic cysts that show radiopacities and are unerupted

30% and 30%

52

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

peripheral calcifying odontogenic cyst

53

what cyst has ghost cells?

peripheral calcifying odontogenic cyst

54

tx of calcifying odontogenic cyst

surgery, recurrence uncommon

55

what is associated with buccal enamel extensions or enamel pearls

buccal bifurcation cysts

56

buccal bifurcation cysts have the same histologic features as what

an inflamed dentigerous cyst or radicular cyst

57

tx of buccal bifurcation cyst

enucleation
involved tooth can often be maintained

58

gingival cyst of the adult is basically what

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

59

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

lateral periodontal cyst

60

tx of gingival cysts of the adult

simple excision
excellent prognosis

61

what is a cyst

pathologic sack of cavity with a central lumen lined by epithelium

62

t/f cysts can become destructive if not treated

true

63

general tx of cysts

simple enucleation or aggressive curettage