Bones

Question 1

What is an ameloblastoma?

Answer 1

A benign, slow-growing, locally aggressive odontogenic tumor arising from remnants of the dental lamina.

Question 2

Where do most ameloblastomas occur?

Answer 2

Posterior mandible, especially the ramus (~80% of cases).

Question 3

What is the classic radiographic appearance of ameloblastoma?

Answer 3

Multilocular radiolucency with a “soap bubble” or “honeycomb” appearance.

Question 4

What are common clinical features of ameloblastoma?

Answer 4

Painless swelling, gradual bone expansion, facial asymmetry, tooth displacement, and root resorption.

Question 5

How is ameloblastoma treated and what is a concern?

Answer 5

Surgical excision; recurrence is common.

Question 6

What is a nasopalatine canal cyst?

Answer 6

A non-odontogenic cyst occurring within the nasopalatine canal.

Question 7

Where is a nasopalatine canal cyst located?

Answer 7

Midline of the anterior palate, between or behind maxillary central incisors.

Question 8

What radiographic feature is characteristic of a nasopalatine canal cyst?

Answer 8

Heart-shaped radiolucency near the apices of maxillary central incisors.

Question 9

Are teeth associated with a nasopalatine canal cyst vital?

Answer 9

Yes, the teeth are vital.

Question 10

What is the typical management of a nasopalatine canal cyst?

Answer 10

Asymptomatic; removal if needed.

Question 11

What is a median palatine cyst?

Answer 11

A non-odontogenic developmental cyst of the palate.

Question 12

Where is a median palatine cyst located?

Answer 12

Midline of the posterior hard palate.

Question 13

How does a median palatine cyst appear radiographically?

Answer 13

Well-defined unilocular radiolucency.

Question 14

How is a median palatine cyst managed?

Answer 14

Usually asymptomatic; removal if needed.

Question 15

What is a globulomaxillary cyst?

Answer 15

A non-odontogenic developmental cyst between the maxillary lateral incisor and canine.

Question 16

Where is a globulomaxillary cyst found?

Answer 16

Between the roots of the maxillary lateral incisor and canine.

Question 17

What is the classic radiographic appearance of a globulomaxillary cyst?

Answer 17

Well-defined, pear-shaped radiolucency.

Question 18

What dental effect can a globulomaxillary cyst cause?

Answer 18

Root divergence of adjacent teeth.

Question 19

What is a static bone cyst (Stafne defect)?

Answer 19

A pseudocyst presenting as a developmental bone depression, often containing salivary gland tissue.

Question 20

Why is a Stafne defect not a true cyst?

Answer 20

It lacks an epithelial lining.

Question 21

Where is a static bone cyst typically located?

Answer 21

Below the mandibular canal near the angle of the mandible.

Question 22

How does a static bone cyst appear radiographically?

Answer 22

Well-defined radiolucency below the mandibular canal.

Question 23

What is the treatment for a static bone cyst?

Answer 23

No treatment required; it is asymptomatic and non-expansile.

Question 24

What is a simple (traumatic) bone cyst?

Answer 24

A bone cavity without epithelial lining, making it a pseudocyst.

Question 25

Where is a simple (traumatic) bone cyst most commonly found?

Answer 25

Posterior mandible in adolescents and young adults.

Question 26

What is the classic radiographic appearance of a simple bone cyst?

Answer 26

Well-defined radiolucency with scalloping between roots of vital teeth.

Question 27

What is the suspected cause of a traumatic bone cyst?

Answer 27

Often associated with prior trauma.

Question 28

Are traumatic bone cysts symptomatic?

Answer 28

Usually asymptomatic.

Question 29

What is the treatment for a simple bone cyst?

Answer 29

No treatment required.

Question 30

What is an aneurysmal bone cyst?

Answer 30

A pseudocyst filled with blood-filled spaces causing rapid bone expansion.

Question 31

Where do aneurysmal bone cysts most commonly occur in the jaws?

Answer 31

Mandible.

Question 32

What radiographic pattern is typical for an aneurysmal bone cyst?

Answer 32

Multilocular radiolucency with “soap bubble” or “honeycomb” appearance.

Question 33

What age group is most affected by aneurysmal bone cysts?

Answer 33

Children and young adults.

Question 34

What symptoms may occur with aneurysmal bone cysts?

Answer 34

Rapid expansion, pain, facial asymmetry.

Question 35

How are aneurysmal bone cysts treated?

Answer 35

Surgical curettage; recurrence possible.

Question 36

What is cherubism?

Answer 36

A hereditary condition where mandibular bone is replaced by fibrous tissue.

Question 37

Where is cherubism most commonly located?

Answer 37

Posterior mandible with bilateral symmetrical involvement.

Question 38

What is the classic facial appearance of cherubism?

Answer 38

Painless progressive jaw enlargement creating a “cherubic” appearance.

Question 39

What age group is most commonly affected by cherubism?

Answer 39

Children under 20 years old.

Question 40

What dental effects occur in cherubism?

Answer 40

Premature loss of primary teeth and delayed or failed eruption of permanent teeth.

Question 41

How does cherubism typically progress over time?

Answer 41

Often stabilizes after puberty.

Question 42

What is the treatment approach for cherubism?

Answer 42

Observation or surgery if needed.

Question 43

What is fibrous dysplasia?

Answer 43

A genetic disorder where normal bone is replaced with fibrous connective tissue and calcifications.

Question 44

Where does fibrous dysplasia most commonly occur in the jaws?

Answer 44

Maxilla.

Question 45

What is the classic radiographic appearance of fibrous dysplasia?

Answer 45

“Ground glass” radiopacity.

Question 46

What are typical symptoms of fibrous dysplasia?

Answer 46

Painless, slow-growing bone enlargement.

Question 47

What is Paget disease (osteitis deformans)?

Answer 47

A chronic metabolic disorder involving abnormal bone resportion, repair, and remineralization

Question 48

Which bones are commonly affected by Paget disease?

Answer 48

Skull, jaws, and other skeletal bones.

Question 49

What is the classic radiographic appearance of Paget disease?

Answer 49

“Cotton-wool” radiopacity with patchy bone deposition.

Question 49

What demographic is most affected by Paget disease?

Answer 49

Men over 50 years old.

Question 50

What dental changes may occur with Paget disease?

Answer 50

Increased tooth spacing and ill-fitting dentures due to jaw enlargement.

Question 51

What symptoms may be present in Paget disease?

Answer 51

Bone pain and enlargement.

Question 52

What is multiple myeloma?

Answer 52

A malignant plasma cell tumor originating in bone marrow.

Question 53

Where does multiple myeloma commonly occur?

Answer 53

Skull, spine, and jaw bones.

Question 54

What is the classic radiographic appearance of multiple myeloma?

Answer 54

Punched-out radiolucencies.

Question 55

What systemic symptoms are associated with multiple myeloma?

Answer 55

Pain, fatigue, anemia, and renal problems.

Question 56

scalloping between roots →

Answer 56

Traumatic bone cyst

Question 57

Rapid expansion + blood-filled spaces →

Answer 57

Aneurysmal bone cyst

Question 58

Bilateral jaw swelling in kids →

Answer 58

Cherubism

Question 59

Ground glass →

Answer 59

Fibrous dysplasia

Question 60

Cotton wool →

Answer 60

paget disease

Question 61

Punched-out lesions →

Answer 61

Multiple myeloma