Cysts of the Jaw and Oral Regions

Question 1

Cysts can be classified on the basis of 3 things what are they?

Answer 1

Location

Pathogenesis

Cell Type

Question 2

What is the difference between a radicular and residual cyst?

Answer 2

Residual cysts are found in edentulous areas

Question 3

When is a dentigerous cyst suspected with regards to follicular space?

Answer 3

Cyst suspected if follicular space exceeds 3mm

Question 4

What cyst is this?

Answer 4

Radicular cyst

Question 5

What type of cyst is this?

Answer 5

Thyroglossal cyst

Question 6

The image shows a dentigerous cyst what is the arrow pointing at?

Answer 6

Goblet/Mucous filled cell

Question 7

What type of cyst is this?

Answer 7

Nasopalatine cyst

Question 8

Define a Cyst

What does a Cyst NOT contain?

Answer 8

A cyst is a pathological cavity containing fluid, semi-fluid or gas

Not filled with pus

Question 9

Where are mucous extravasation cysts commonly found?

Answer 9

Lower lip from trauma

Question 10

What are the two different Epithelial cysts?

Answer 10

Odontogenic

Non-odontogenic

Question 11

Label 1, 2 and 3

What type of cyst is this?

Answer 11

1. Fibrous Tissue
2. Non-Keratonised Stratified Sqaumius Epithelium
3. Cyst cavity with debris

Radicular Cyst

Question 12

What is this cyst?

Answer 12

Radicular cyst

Question 13

Cysts can be classified on the basis of pathogenesis what are these 2 classifications?

Answer 13

Developmental

Inflammatory

Question 14

What is happening in this image?

Answer 14

The cyst has expanded and closed off the left side of nasal cavity

Question 15

What are the two different types of Odontogenic cysts?

Answer 15

Inflammatory odontogenic cysts

Developmental odontogenic cysts

Question 16

What can you see in this image?

Answer 16

Nasopalatine cyst

Question 17

Describe a property of a true pathological cyst?

Answer 17

Lined with epithelium

Question 18

What type of cyst is this?

Answer 18

Dermoid cyst

Question 19

Name 3 soft tissue cysts

Answer 19

1. Mucous extravasation cyst
2. Retention cyst
3. Lymphoepithelial (brachial) cyst

Question 20

Label 1, 2 and 3

What type of cyst is this?

Answer 20

1. Cyst cavity
2. Non-Keratonised Stratified Sqaumius Epithelium
3. Fibrous Tissue

Radicular Cyst

Question 21

What are the general clinical features of a cyst?

Answer 21

• Swelling
• Displacement or loosening of teeth
• Pain (if infected)
• Eggshell cracking
• Sign of fluctuance

Question 22

What type of cyst is this?

Answer 22

Odontogenic keratocyst

Question 23

What type of cyst is this?

Answer 23

Nasopalatine cyst

Question 24

Describe the difference in the teeth associated with a radicular cyst and a lateral periodontal cyst

Answer 24

Radicular cyst occurs from a non vital necrotic tooth whereas a lateral periodontal cyst is developmental so the associated teeth are vital

Question 25

What is this image an example of?

Answer 25

Odontogenic keratocyst

Question 26

What type of cyst is this?

Answer 26

Odontogenic keratocyst

Question 27

Label 1, 2, 3 and 4 What type of cyst is this?

Answer 27

1. Fibromyxoid tissue 2. Non-Keratonised Stratified Squamous Epithelium 3. Cyst cavity 4. Cilliated cells Dentigerous/Eruption cyst Epithelium is flat (developmental)

Question 28

Label 1, 2 and 3 What type of cyst is this?

Answer 28

1. Cyst cavity 2. Non-Keratonised Stratified Sqaumius Epithelium 3. Fibrous Tissue Radicular Cyst

Question 29

What cysts are associated with Gorlin Goltz syndrome?

Answer 29

Odontogenic keratocyst

Question 30

Comment on the link between inflammation and an epethelium in regards to cyst formation

Answer 30

Epethelium proliferation is a reaction to inflammation

Question 31

What cyst is this?

Answer 31

Residual cyst

Question 32

Label 1, 2 and 3 What type of cyst is this?

Answer 32

1. Cyst cavitity 2. Keratinised Epithelieum 3. Keratin Odontogenic Keratocyst Can tell from uniform epithelieum and keratin

Question 33

Where are nasopalatine cysts commonly found?

Answer 33

Associated with a vital maxillary incisor

Question 34

Where are lymphoepethelial cysts commonly found?

Answer 34

Unilateral swelling at lateral part of the neck

Question 35

What cyst is on this radiograph?

Answer 35

Solitary bone cyst (irregular shape, arches up and down between the roots)

Question 36

What are the two different cell type cysts?

Answer 36

Epithelial cysts Non-epithelial cysts

Question 37

What cyst is this?

Answer 37

Lateral periodontal cyst

Question 38

What is this cyst? How do you know?

Answer 38

Nasopalatine cyst There is a nerve cell present

Question 39

Label 1, 2 and 3 What type of cyst is this?

Answer 39

1. Fibromyxoid tissue 2. Non-Keratonised Stratified Squamous Epithelium 3. Cyst cavity Dentigerous/Eruption cyst Epithelium is flat (developmental)