Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Oral Surgery > Cysts > Flashcards

Cysts Flashcards

1
Q

Radicular cysts come from the remenants of what epithelium

A

Rests of mallaez from hertwigs root sheath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What two kinds of cysts come from remnants of the reduced enamel epithelium

A

Dentigerious cyst
Eruption cyst

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Ameloblastoma
Keratocyst
Gingival cyst

All come from remenants of which odontogenic epithelium

A

Dental lamina - rest of serres

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Radicular cysts make up what’s percentage of all odontogenic cysts

A

60%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a radicular cyst commonly associated with

A

A non vital tooth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How does a radicular cyst usually present Radiographically

A

Round or avoid radioluceny at root apex
Unilocular , well defined
Uniform radiolucency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are the two kinds of inflammatory collateral cysts

A

Paradental
Mandibular buccal bifurcation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What kind of epithelium is seen in radiucular cyst

A

Lining of non keratinised squamous epithelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the most common type of developmental odontogenic cyst

A

Dentigerous cyst

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a characteristic feature of a Dentigerous cyst

A

Embrace all or part of the crown and attaches at the CEJ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A Dentigerous cyst is lined by epithelium derived from what

A

Reduced enamel epithelium from the enamel organ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What tooth is a Dentigerous cyst most commonly associated wuht

A

Impacted third molars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does an odontogenic keratocyst arise from

A

Cell rests of serres originating from dental lamina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How does an odontogenic keratocyst expand and what does this mean

A

In an AP direction

Can reach a large size without causing gross bony expansion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What syndrome is assoaciated with odontogenic keratocyst

A

Basal cell naevus syndrome

Multiple naeviod BCCs of skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the origin of nasopalatine duct cyst

A

Epithelial remnants of Naso-palatine duct

17
Q

What is a nasopalatine duct cyst lined with

A

Stratified squamous epithelium and respiratory or cuboidal epithelium

18
Q

What is cyst enucleation

A

Removal of the entire lining of the cyst and its contents
Depends on the size and cyst type

19
Q

Name 4 complications associated with cyst enucleation

A

Damage to IAN
Commutation with maxillary sinus - OAC
Pathological fracture of mandible
Risk of recurrence

20
Q

What is marsupilisation of a cyst

A

Creation of a surgical window in the wall of a cyst, removing the contents of the cyst and suturing the cyst wall to the surrounding epithelium

Encourages the cyst to decrease in size

21
Q

Name 4 complications associated with marsupilisation

A

Needs further surgery for removal of cyst
Long treatment before completion
Chance of re-infection
Uncomfortable for the patient

22
Q

What is a lateral periodontal cyst

A

Forms at the side of a tooth as a result of the opening of a lateral branch of a root canal

Occasionally can form as a result of inflammation in gingival pocket of a vital tooth

23
Q

How does continued growth happen in a radicular cyst

2 ways

A

Osmotic effect with semi-permeable wall
Cytokine mediated growth

24
Q

When sending a sample of a cyst to a lab what medium is it placed in

A

10% formalin

25
Q

What is the typical size of a dental follicle

A

<2.5mm

26
Q

Describe three histopathological features of an odontogenic keratocyst

A

Thin keratinsed epithelium
No rete pegs
Pallisading of basal cel nuceli

27
Q

When doing an aspiration biopsy of a Odontogenic keratocyst what would you expect the protein content to be

A

Low solubale protein content <4g/dl

28
Q

Why is inflammation in a cyst a problem for a pathologist?

A

Inflammed areas those their typical features leading to problems in diagnosis and surgical managment which could result in recurrence

29
Q

What is the importance of daughter cysts

A

The clincal importance of these cysts is that if they are left behind after surgical removal they can cause recurrence

30
Q

What is the normal width of an incisive papillae

A

6mm

3-6mm is the range

31
Q

What are 3 advantages of enucleation

A

Whole lining can be examined pathologically
Primary closure
Little aftercare needed

32
Q

What are 5 disadvantages of enucleation

A

Risk of a Mandibular fracture with a very large cyst
Clot filled cavity may become infected
With a Dentigerous cyst - ,may have wanted to preserve the tooth
Incomplete removal of lining may cause recurrence
Damage to adjacent structures

33
Q

What are two advantages of marsupialisation

A

Simple to perform
May spare vital structures

34
Q

4 disadvantages of marsupialisation

A

Opening may close and cystreforms
Complete lining isn’t available for histopatholgy
Difficult to keep clean and a lot of aftercare needed
Long time to fill in

35
Q

Name 5 indications for marsupialisation over enucleation

A

If enucleation would damage surrounding structures ie. ID canal

Difficult access to the aera

May allow eruption of teeth i.e in a Dentigerous cyst

Elderly or immunocompromised pateitns who are unable to withstand extensive surgery

If enucleation would risk jaw fracture

36
Q

What is a stafne cavity

A

This is a depression in the bone that is often mistaken for a cyst
Only occurs in the mandible and almost exclusively lingual

37
Q

Where is stafne cavity most commonly found

A

In the mandible
Often in angle or posteior body and often inferior to IAn

38
Q

Patient presenting with salty taste in mouth what cyst may you think of

A

Nasopalatine duct cyst

Oral Surgery (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions